hot to repair a 2.1 powered subwoofer system?

I have a MG audio 2.1 subwoofer system last night it suddenly broke when I plug in the cord and power it on nothing happens. Can some help fix it?

Posted by cpeig 6 years ago


Car Audio

Post all your stuff/questions about car audio.

Posted by RelyNupon 10 years ago


Help wanted to modify a bluetooth speaker to a wired connection to a hifi

Hello I have a subwoofer left over from my Samsung soundbar home cinema system which is no longer working. The subwoofer though is working fine is it possible to wire in connections to the bluetooth subwoofer to connect this to my hifi? I have attached a picture of the electronics of the subwoofer, if anybody knows if this is possible please get in touch?

Posted by Steve_f 2 years ago


I need help with subwoofer box designs!!!

I've got this new alpine (well not new, but it still works) 12 inch subwoofer. The box it's in was probably alright for in the trunk of the car, but I'm planning on using it inside, as my sub just blew. Here's the size demensions of it: 15" wide, 16" high, and 13" deep. There's a hole about 3" x 2 1/4" in the back for the wire to come out. I was planning on using the internal amplifier from the blown subwoofer, in this box, but I need to cut a hole to fit the amplifier in. It sounds really punchy, but for a 200 watt subwoofer (that's rms) it doesn't shake my floor at all because it's basically a sealed box, the sub comes out the front, should I cut a hole in the front or side for a port? What if I used the pipe out of the blow subwoofer box, or is it specifically tuned for the 8" that was in there before? Thanks for any help.

Posted by Punkguyta 11 years ago


Has anyone done this?!?

If you don't have it set up like this already, then try it. If you have a smallish room, try putting your subwoofer in the corner. In my room the bass lights up like the 4th of july compared to when the box is sitting in the middle of my room. I'm listening to it right now and it just sounds wicked. You the bass more than you hear the subwoofer itself moving and groaning at the low notes.

Posted by Punkguyta 10 years ago


Subwoofer

Hey, I've got the ginormus sub woofer thats crazily loud. But the computer doesn't make much use of it, it will only work if the bass is super deep. When i plug it into my ipod it works normally. Any help to make it work better for my computer because it was originally made for my computer?

Posted by CowGuy 11 years ago


Subwoofer output from my creative card??

Hey guys, can someone help me with this?? I have one of these sound cards, as you can see in the picture. It's worked pretty good for me for the past couple of years, but usually the subwoofer output comes either straight from the normal 2 channel stereo output on the card, piggybacked onto the cable that goes to my stereo and then that goes to my sub amp. Either that or right now I have the subwoofer amp hooked up to the line-level subwoofer output on my surround reciever, but it's still 2 channel audio. I've recently been fiddling around with my sound card, attempting to get the subwoofer output on it working. I've tried the black socket on the sound card with a 2 channel 3.5mm to RCA cord and apparently it's the rear channels as the subwoofer volume slider didn't do anything in my creative control panel, and according to a pdf I found online for my sound card, the S/PDIF socket also functions as the center/subwoofer outputs when not being used for S/PDIF. I've tried a 2 channel and also a "3 ring" 3.5mm cable I have for a camcorder (As I believe some of the cables that are SUPPOSED to go with this card, have 3 ring contacts on SOME of the cables). Alas, all I've been able to do is get a loud humming sound out of the connections, doesn't matter what rca channel the subwoofer is plugged into, it hums VERY loudly and absolutely no sound what-so-ever. Does ANYONE have any clue as to what I do to get subwoofer output from the card?!? Heres a link to the PDF describing what each port is for under "Creative Sound Blaster Live! Digital Entertainment 5.1 Creative Audio Software" and then the submenu "Installing sound blaster Live@ Player 5.1" and the next submenu "Connecting Related Peripherals" and that page describes what each port is for. files2.europe.creative.com/manualdn/Manuals/TSD/790/English.pdf

Posted by Punkguyta 8 years ago


Is this bridgable?

I've got the amp of a jvc mini componant stereo that came with these gigatube speakers which where 3 way enclosures with a subwoofer in each. This amp would probably work better for my subwoofer I have now but I wanted to know if it is in any way possible to bridge the sub outputs of the amp so I can have a more powerful single channel.

Posted by Punkguyta 10 years ago


Help with wiring TIP31 transistor to run LED's on subwoofer?

I am wiring LEDs to my subwoofer to sync in beat of the music, to stop the bulbs from blowing, i am thinking of wiring a TIP31 transistor to it and plug in RCA and 12v in to run it using a rca out to the actual amp, in the attached picture please make sure i got all the wiring right and tell me if it would work http://i1245.photobucket.com/albums/gg589/daleumad/asdfghnh.png id get a bigger picture but it wouldnt let me, just use like browser zoom or open in paint

Posted by daleumad 6 years ago


car audio installation

So I have recently purchased an 8 inch subwoofer from a garage sale, wich was already mounted in the box. It has 2 inputs, a red and a black. I currently have it hooked up in replacement of the stock passenger side rear speaker in my 1999 ford ranger XLT, and it works well, but is not very loud. My question is 2-fold. 1: how would I go about wireing the speaker so that it could be used in addition to both the stock rear speakers without decreasing sound quality or volume, and 2: How could I increase the volume of just the subwoofer without affecting the other speakers? I have heard that there are "bass amplifiers" that i could hook in line but have not seen where I could purchase/ build one. Schematics and links would be very helpfull! Thanks, Iloveairsoftstuff

Posted by the mechanical engineer 7 years ago


Portable Audio System, I need Help Making Scematics!

I'm a little stuck here, I obviously don't do circuitry work every day, but I do know what is what. I have a lawnmower battery, and a set of both a 9 volt operated pair of computer speakers, and a 15 volt subwoofer set. I was planning on using the subwoofer set initially, but it sucks a lot with it going through the inverter and whatnot, rather inefficient. I was trying to find scematics for a simple circuit to power the speakers without going through the inverter.

Posted by Punkguyta 11 years ago


im giving up on my bike...

Im giving up on my bike because its given me nothing but trouble, BOTH OF THEM, MY CHAIN BROKE, MY BRAKE PADS FELL OUT OF THE SOCKETS, MY SUBWOOFER ON MY COMPUTER BLEW, THE ONLY THING RIGHT WAS THIS BLUE LED I PUT IN MY MOUSE, THATS IT ITS BULL-CRAP, MESSED UP, TODAY ISNT MY DAY. IMA GO GET ANOTHER ENERGY DRINK TO CALM MY NERVES, IM ABOUT TO PUNCH A HOLE THROUGH THE WALL. im listening to: NWA and ice cube - F**k the police then twista and T-pain - Creep Fast

Posted by Yerboogieman 10 years ago


DIY Plexiglass Window

Hey guys, time for another update of what I've been up to lately in my spare time. The other day I just finished a project, where I decided to take some scrap plexiglass and install it as a window in the top of my subwoofer, just like how more expensive pre-built subwoofer boxes have them. I tried to take pictures as I went along with it. Trust me, I may only have a handful of picture, but it took A LOT. Most of the hard work was chiseling the MDF board to fit a groove for the plexiglass to sit in and make a seal. P.S.: Chiseling MDF board is like chiseling cardboard, very easy to take too much out! Also, does anyone have any ideas as to HOW I could get some of the deeper scratches out of the plexiglass??? I'll be taking it apart to re-bevel the edge of the seal once I find the damn wood router, so when I do that I'd like to buff the plexiglass out a bit. Also, I think I own bragging rights for doing this.

Posted by Punkguyta 8 years ago


Sub vs Carpet

So i have these, and I just thought, that since the sub's driver (is that the right term?) is on the bottom, facing the ground, and I have carpet...does the carpet impair the sub? ...Since carpet absorbs sound...Just a thought. Should I put it on top of a piece of plexi glass or something?

Posted by Weissensteinburg 11 years ago


can i Splice A usb socket extension cable into power cable???

Hello, I have a little sub woofer box and 4  speakers connected to it, it has a line out 3.5 mm headphone jack which i connect my iphone to, the Subwoofer box has a power cable which plugs into the mains power. This is for work and it does the job just fine. my question is though i want to put a USB socket in the subwoofer box so i can charge my iphone at the same time via USB. Can i splice my usb socket extension  cable  into the power cable??  The power cable does not have an AC adaptor on the end if it just the plug. If this cant be done How can i get power to usb. Thanks in Advance.

Posted by Benji29 5 years ago


What can I do with these???

Hello again, I want to bug you guys again, if you remember, I just fixed these JVC speakers as the seals were gone on the plexiglass. Now that's fixed, I've been noticing that when I play almost any song past volume 20-22 I can really notice a lot of turbulent noise from the tubes, and it's not the seals this time, they seem to be holding out. It just sounds punchy and the noise coming from the tubes kind of ruins the fact that I fixed the seals already, theres 4 screws around where the tube goes into the subwoofer chamber, but I tried taking it out, but it still wouldn't come off even though the 4 screws were removed. Does anyone have suggestions on how I could make these speakers sound better??

Posted by Punkguyta 10 years ago


Matching speakers to amplifier

I have purchased 2 Maxamp20 amplifiers (http://store.accusafe.nl/modules/versterkers/maxamp20-met-3-5mm-connector) and i am trying to match speakers to them, i've searched audio forums for information (that i mostly don't understand) and tried asking questions (that have been mostly ignored) and i think i've found appropriate speakers but i want to get a second opinion before i purchase stuff i might not be able to return. i don't have the space for and can't afford the weight requirements of a large enclosure but i want fairly high volume and wide dispersion so im looking at getting 2 of these PA horns (http://www.specotech.com/index.php/products/audio/item/542-spc40rp) to mount on top of a shallow down firing enclosure for 2 of these subs (http://store.accusafe.nl/onderdelen/luidsprekers/subwoofer/dayton-audio-sd215a-88-8-dvc-subwoofer-speaker). i know the subs work with that amplifier because they are used in Boominators (http://www.diyaudio.com/forums/class-d/104402-boominator-another-stab-ultimate-party-machine.html) but i have no idea about the horns. also assuming this setup is okay do i need some kind of filter or crossover (not sure of the difference) to split the sound safely between the midrange and the sub speakers?

Posted by ambientvoid 1 year ago


av pros: how do I design an audio system for an *outdoor* theater?

I'm trying to come up with some specs for a mobile outdoor theater system and I could use some help with the audio work. If I have sound coming out of a DVD player, what components do I need? I was guessing a receiver, several speakers, and a subwoofer. What criteria are important for creating a system that sounds good outside? Can subwoofers even produce an effect when they're not inside? (I'm not concerned about weather-proofing as the system will be stored inside.)I also don't know whether it's worth going for surround sound or simple stereo, any advice?This thing would show movies to about 100 people. I have about $1500 for the audio system, so go nuts.. And thanks for any help!

Posted by moisture 9 years ago


Bad for the speaker?

I stole some poly fill/insulation shit out of a old pair of speakers that are waiting for some new drivers and I stuffed it in my subwoofer box. It doesn't sound like it's going to explode as much as it did before (it's a rather "rickety" box). But I did some googleing and it can overpower a speaker or something? I won't hurt my sub will I? -Punk

Posted by Punkguyta 11 years ago


How to pick best battery for amplifier?

Hello, I ordered this amplifier and I need to pick best battery for this amplifier. Would be great to power it for at least 3-4 hours on maximum volume (200W rms subwoofer and 2x50W rms speakers). I need lightweight battery and powerful battery, size does not matter, budget is low so nothing overpriced I do not want.

Posted by RobertasP4 1 year ago


Amps

Say, I thought I'd ask seeing as I got a little extra money to burn from christmas, anyone got any old/unused car amps they might want to sell to moi? My current sub amp is ever increasingly scaring me and my sub sound's like it's blown a voice coil or something (although I know if it were blown it wouldn't be working as good as it is). What do you got to say Nachomama?

Posted by Punkguyta 10 years ago


I'm stuck between a rock and a voice coil.

I know I think I've posted a question like this before. I have a new sub, it's a car subwoofer origionaly (200 watt max (not rms)). So far it's running off the internal amplifier that came out of my old/blow sub (it was rated for around 100 watts). And I have it ported out the side. I had to do some work on the dust cap, it was torn and the torn peice was flapping and making a lot of noise, so I put nail polish enamel on it, a few coats and seems to have worked, but now on the odd beat it sounds like one of the wires going to the voice coil are loose or it's rubbing on something because it makes almost a crackle noise. I figure if it was rubbing, it would make that noise on every singe beat, but it doesn't always. Is there a chance some of the enamel dripped down into the thing the voice coil sits in and it's rubbing somehow? Thanks for any ideas guys!

Posted by Punkguyta 11 years ago


Computer controlled crossover?

Hey guys, I've been wanting to ask someone about this idea for a while now. You know how you can get programs like SRS Wow that's built into windows media player? There are also other assorted Equalizer programs (with sliders) or for effect, to change how your music is playing. If these programs can do this merely with cpu power, is there a way I could have a source from the mic/input plug on a soundcard in one of my spare towers, and say, re-route it to the speaker/output on the card, but say, have a subsonic filter in place between the input and the output of the card, using only software? I'm pretty Effin sure this has to be possible, and yes I can take into consideration that there could be some considerable cpu usage for realtime playback. My goal would be to say set in place a 20 or 30hz cutoff point and then run that to my subwoofer amp, or use two seperate towers, and run my other subwoofers I have sitting around, but they need a higher cutoff point as they are only 8-10inch woofers. Could anyone lend a hand?? I know this has to be possible somehow.

Posted by Punkguyta 9 years ago


How do I tune this?

I bought a passive subwoofer crossover the other day in Toronto at some crazy combination Home Hardware/Chinese ran semiconductor supply shop. It was simply bought as a pcb in a bag for $18, which I thought was a good deal for that much so I picked it up. It has a large inductor coil and a 188uF 50V capacitor mounted on it, along with a positive and negative terminal soldered on for input/output mono speaker connections. I did hook it up to try in line with my sony stereo and turned the default button on my EQ on to restore the original signal and it worked pretty good to block out most of the signals like I was looking for it to do. However even with the boost on my EQ at 30 and 60 hz, it's not coming through to my sub even like before I hooked the crossover up. I was wondering if that's because of the capacitor or not? The little peice of paper that came with it said it was a 120 hz passive crossover and that it was workable with 4 or 8 ohms. I'll post pics tommorow when I wake up as it is lateeeee. I appreciate if anyone can help me as I don't wanna take the capacitor off there to find out that it wasn't worth it.

Posted by Punkguyta 10 years ago


Soundproofing?

How could I sound proof my room? Particularly against the "bass" end of the spectrum? I know you can use foam panels that are cheap enough but would they also help absorb the bass too? I'm getting tired of my parents yelling at me whenever I play music. I don't nessesarily play it loud, but with my subwoofer on, it goes low enough to rattle through the whole house even at low levels. I'd like to make this a competition, the best idea I will pick out and do to my room, I may even think of a prize.

Posted by Punkguyta 10 years ago


Help Wiring my AMP for Homemade Speakers?!

Hi guys, please take a look at the image below and try to answer these questions for me please, it will be greatly appreciated and you will be mentioned in the credits of my final instructable when its made. 1. How many Watts Per Channel is it? 2. What does it mean by A+B? ie. Does it mean connecting 4 speakers? 3. Could I wire a Subwoofer crossing over the Right + to Left - Terminals? Finally, I'm going to have a 10" Sub with two tweeters wired up. Should I wire each tweeter to Left and right? Im also going to wire in an L-Pad for the Sub. Thanks a lot guys!

Posted by wizzywoo 5 years ago


Here's my first short film. Would you like an Instructable on how to make an indie movie from A to Z ?

Hi guys, I'm a french DIYer, and I wrote, produced, directed and edited this short movie called Sutures in one month : http://vimeo.com/44380316 (better use good headphones / a subwoofer). I'd like to get some feedback on it, and I'd like to know if you guys would appreciate an Instructable on how to make something like this with very few resources and time. Making this Instructable will take some time (I like to do things the best I can), so I think I'll do it if some people are interested. There's not a lot of resources about video and filmmaking on Instructables... Please tell me what you think. Thanks for your interest, Mid.

Posted by MidnightSon 6 years ago


Making a plug-in stereo a bit more portable

Hey folks! Here's what I'm looking to do: Critical Mass is coming in a few days, and I think it could use some tunes to get the party bumping. I'm got a dandy bike trailer of my own creation, and a decent subwoofer-plus-two-speakers stereo system. The problem is combining the two to make mobile musical magnificence. The power brick for the stereo lists its output as 15VDC, 3A. I want to know what my options are. Could I just string 10 AA batteries together in series? What if I use a car battery? What is the tolerance for voltage variation; i.e., if I get a 13V power supply, is it likely to still work? Do I need to consider any factors besides the total voltage being supplied? Any help is greatly appreciated.

Posted by Merlmabase 11 years ago


need help with joining 6 speakers

Hi~ I currently need help in knowing how to attach 4 speakers and 2 subwoofer together while making sure it's portable. It also needs a mic jack plus a plug to be able to plug to a mp3 player or a smart phone. I think it needs to be powered by batteries as well? It's for a cosplay costume i am doing that have speaker attached to it and since the costume will have my mouth covered by a mask, i decided i could actually make good use of the speakers to talk to people with a small mic hidden under the mask. But the thing is that i have totally no idea on how to do it, i have found some tutorials but it doesn't seem to match what i am planning to do. It would be nice if anyone is kind enough to help me with this problem. Thanks :) Here is the image of the cosplay i'm planning to do:

Posted by sakura_rin 4 years ago


I'm bored!

 I'm really bored and I want to build something neat, can someone suggest something cool I could do with these parts?? Armed with soldering gun and other parts in my parts bins, I'm sure I could make something cool/useful?? (P.S as far as the capacitors, I wouldn't mind making a rail gun) I have this so far I want to use: Bank of capacitors (several large amplifier capacitors and some smaller power supply caps) One rather large relay switch (I tested it today, it works!) One "temporary" toggle switch, it does NOT stay on when you flick it, dual pole Does anyone have any idea?? I also have things like hundreds of smaller caps (is it possible to make an effective capacitor bank with tonnes of tiny capacitors?? I also have oodles of ferrite cores and RF chokes of different sizes (I was wondering, would the larger RF chokes I have, work as subwoofer coils??)

Posted by Punkguyta 8 years ago


Double-Opposite Coil Speaker Design?

So I finished a new speaker I designed, today. It was just then that I thought about the possibility of creating a new design. In the tradition speaker, a coil sits below the magnets, and they are pulled in and out of the coil, creating vibrations (subwoofer).I like this method, and all, but I wanted a bit more! So I got to brainstorming. If you were to put a coil around the magnets, it would still work - it's just have no bass what-so-ever. Well, what if we were to put a coil on the bottom, as usual, but add a second coil on the opposite side, while allowing it to encircle the magnets, but not get in the way. So when the magnets get pulled into the coil, the second coil does not interfere, but still is close enough to the magnets as to create sound. Would this have any adverse effects? Would it ever work? I've included an image so you can see my vision. I may very well just be stupid, but hey, it's an idea. Going to work on it tonight.

Posted by freethetech 6 years ago


What Should I do with the things that I have?

So I was cleaning some stuff out tonight and I found a bunch of stuff I really have no use for I found: - an external CD/DVD dual layer burner - 4 output VGA splitter - firewire PCI card - 56k fax modem card - old keyboard - a distortion pedal (guitar pedal) - 3 various capacity harddrives - knock off ipod nano (broken) - old comp speakers w/oldschool mini - subwoofer - acoustic guitar soundhole pick-up - crappy digital camera with IR filter removed - unused web cam - huge assortment of cords - USB wall charger (small box with outlet prongs and female usb input) can anyone think of any quality usable projects I could make with any or all of this stuff? (I might be willing to part with the more expensive items.....EX. Burner or VGA splitter for shipping and an super extremely discounted purchase price...... I'm to lazy to Ebay any of it)

Posted by chaoscampbell 11 years ago


(newsletter) Homemade Shampoo, Cryptex, RumbleMouse...

Sign-up for this newsletter: Welcome back! NEW Pocket-Sized Contest - Think small, and win a custom laser-etched Leatherman! Get in the Garden Contest - Enter any Instructable with a gardening theme and win an awesome computer-controlled indoor composting machine from NatureMill! Art of Sound Contest - Share any sound or music-related Instructable, and win an incredible custom hi-fi tower set with subwoofer, monster speakers, and more!! Get the LED Out! Contest - Closed for entries, but open for voting! Vote Now! RGBike POV - Open Project Make Your Own Seed Tapes Homemade Shampoo Double Helix DNA Model with LEDs Simple Sequencer Make an Onigiri (Rice Ball) Adjustable Modular Furniture Non-Slip iPod/phone Stand New contest! Get Started with Arduino Build an Alien Artifact DIY Audio Switch How to Cook with Herbs and Spices Win a cool computer-controlled indoor composter! Win these custom hi-fi speakers! Cryptex Design Audio for an iPhone Game Replace Low Voltage Halogens with LEDs RumbleMouse Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


(newsletter) DIY Deodorant, Glowing Goggles, Robot Voices...

Sign-up for this newsletter: Welcome back! We've got three fantastic contests this week, so get to work turning your great ideas and half-done projects into finished Instructables and enter! Pocket-Sized Contest - Think small, and win a custom laser-etched Leatherman! Get in the Garden Contest - Enter any Instructable with a gardening theme and win an awesome computer-controlled indoor composting machine from NatureMill! Art of Sound Contest - Share any music or sound-related Instructable, and win an incredible custom hi-fi tower set with subwoofer, monster speakers, and more!! Robot Voice Modulator Upside-Down Hanging Earth Box! Homemade Deodorant Used Tire Raised Garden & Tree Ring Save Space and Combat the Mess Leather Chain Necklace There's something fishy in my pocket! Programmable Leather Bracelet Quick and Cheap LED Lighting Scallop Your Guitar The Beverage Barge How to make a Cargo Kilt Win a cool computer-controlled indoor composter! Win these custom hi-fi speakers! Light Up Steampunk Goggle Mod One Cup Coffee Brewing Pocket-Sized Lantern Repair a Broken LCD Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


music lights idea

Well I've been working on this project for a while now and the design has changed many times. I have also asked several questions based on the ideas. My latest idea is to make 3 different sets of lights flash to music using the 3 outputs of a 5.1 system on a computer. I know this may sound confusing but what I mean is the orange, black and green outputs which control the rear, front and center/subwoofer of a 5.1 surround system. Do you think this could work? If so then I suppose I would use just the right channel of each and possibly the ground connection (not sure whether I need it). Also if using transistors to make an electronic switch turning the lights on and off, would I need amplifiers? I only have 1 at the moment and even if I could get more they would almost certainly be different. If you know the answer to these questions please help and even I am successful the I will create an instructable on this. One more thing: Does anyone know whether the center of the center/sub connection is the tip or middle of the jack? Thanks, Jim

Posted by pyro-jim 9 years ago


(newsletter) T-Shirt Necklace, Cardboard Lumber, Arduino Trumpet...

Sign-up for this newsletter: Welcome back! Get in the Garden Contest - Enter any Instructable with a gardening theme and win a very cool computer-controlled indoor composting machine from NatureMill! Art of Sound Contest - Share any sound or music-related Instructable in our new contest and win an incredible custom hi-fi tower set with subwoofer or monster speakers! Get the LED Out! Contest - Enter any Instructable that involves LEDs, and win some amazing lights from Monkeylectric! Closes for entries this Sunday night! Results: Earthjustice United States of Efficiency Contest winners and Mother's Day Contest winners! LED Hand Lights Cupcake Cones Cardboard Lumber Recycled T-shirt Necklace How to Paint Clean Lines Simple Music LED Light Show Duct Tape Tear-Away Scratch Pad Sturdy Handle with the Portuguese Sinnet Any Instructable with an LED can be entered! Sound Graffiti Arduino Trumpet Collapsable Table for Concerts in the Park! The Worm-A-Rater Win a cool computer-controlled indoor composter! Win these custom hi-fi speakers! Solar Pool Water Heater Quick makeup FX with Silicone-based Pastes Analog Sound Synthesis Birth of Man Mixing Board Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


(newsletter) Ballistic Gel, Fridge Alarm, Vulcan Lyre...

Sign-up for this newsletter: Welcome back! NEW! Get in the Garden Contest - Enter any Instructable with a gardening theme and win a very cool computer-controlled indoor composting machine from NatureMill! Art of Sound Contest - Share any sound or music-related Instructable in our new contest and win an incredible custom hi-fi tower set with subwoofer or monster speakers! Get the LED Out! Contest - Enter any Instructable that involves LEDs, and win some amazing lights from Monkeylectric! Results are up for the Mother's Day Contest and Earthjustice United States of Efficiency Contest. See the winners here and here! The SteamRoller Riding Contraption Table for Electronic Dreams Make Traditional Baguettes by Hand Build Custom Speakers - Art of Sound Contest Win a high-tech computer-controlled composter and easily turn scraps into soil! Simple Metalworking Techniques ValveLiTzer Guitar Pedal Redux Make a Fridge Alarm to Catch Thieves Powder Coat a Bike Frame with Logos Ballistic Gel Use Sculpey on a Vinyl Toy Solar Light Up Rock Stairwell Pita Pizza: The Five Minute Snack Share your best LED creations! Win these custom hi-fi speakers! Acoustic Vulcan Lyre Crutch Chair Fortune Boat Lamp Make a Fiberglass Speaker Enclosure Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


(newsletter) Vertical Garden, Cryptex, Bubble Lamp...

Sign-up for this newsletter: Welcome back! Check out some bright blinky projects - see who won the Get the LED Out! Contest! We've still got three fantastic contests this week, so start thinking, get to work, and enter! Pocket-Sized Contest - Think small, and win a custom laser-etched Leatherman! Get in the Garden Contest - Enter any Instructable with a gardening theme and win an awesome computer-controlled indoor composting machine from NatureMill! Art of Sound Contest - Share any music or sound-related Instructable, and win an incredible custom hi-fi tower set with subwoofer, monster speakers, and more!! Make a Cryptex Vertical Vegetable Garden Refill Disposable Propane Tanks Cheap and Simple Bottle Cap Magnets! See who won! Win these custom hi-fi speakers! Build a D-Ring Bit Driver How to Break Up Repair Cigarette Burns on Carpet Bubble Lamp Bowling Ball Fountain Steampunk Garter Pistol Prop Crystallised Ginger Painted Mattress Survival Boat Win a cool computer-controlled indoor composter! Win a custom laser-etched Leatherman! World's Smallest Gripper Robot Pocket Scrolls Nerf Mods: A Beginner's Guide Pocket Sized Camp Stove Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


(newsletter) Concrete LEGO, Bass Cannon, Cardboard Trebuchet...

Sign-up for this newsletter: Welcome back! Check out these two fantastic contests!Build something awesome using cardboard, and enter the Gorilla Glue Cardboard Contest to win a huge package of Gorilla Glue supplies and gear!Cook up something tasty for the Low & Slow BBQ Contest and win a Weber Smokey Mountain Cooker, and autographed copies of the new Low & Slow BBQ book! Help choose the winners by voting for your favorites in the Art of Sound Contest - Vote for who wins the custom hi-fi tower set with subwoofer, monster speakers, and more! Coming soon... Share your favorite kids craft projects in the SINGER Kids Crafts Contest, starting next week! 800watt, 12' long Bass Cannon Make a Stuffed BBQ Fattie Concrete LEGO Cake in a Jar Submit a cardboard creation and win a prize pack from Gorilla Glue! Cook up something tasty! Make a Cardboard Trebuchet DIY Workbench Playable NES Zipper Lamp The Homewrecker Laughing Coke Can Prank Back Cooler Growing Avocado Plants From Seed Woodgas Can Stove Help choose who wins the hi-fi custom speakers! Coming soon! Lamp Made from Translucent 45s Wicking Beds Millefiori USB Flash Drive Jewel College Bed Loft (Twin XL) Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


box(es) for sub(s)?? How many? What size? Here's some measurements.

So... Got some subs I had lying around: http://www.crutchfield.com/p_500SWE1042/Alpine-SWE-1042.html?tp=111&tab;=features_and_specs I am trying to figure out if I should vent (I don't think I should from research) and if I can do them in a single box or if it's better to put them each in a box. I also haven't found out if I should JUST double the volume for having both in one box or if it should be a different amount. The suggested volume I've calculated is 4.1 cu ft (but that seems a bit huge).       V(as) 33 liters   |    Q(ts) 0.66    |    10 Inch The speakers will be in series, I don't know if this affects whether or not I can put them in a single box. How much does the shape of the box matter? Can I make a rectangular cube and put the speakers at either end or do they need to be on the same side? When it comes to fill would it be better to use something fluffy that takes up a large amount of space like very fluffed out cotton or is carpet always the better way to go? I cannot find how much fill I SHOULD use. I have found suggestions for just carpet on the back wall and some for all sides wherever you can and even two people suggested to fill it to about 80% (though it did not say what with). Any questions?

Posted by Andale_The_Great 7 years ago


(newsletter) Seed Bomb, DIY Sunscreen, USB Cigar...

Sign-up for this newsletter: Welcome back! Check out our 4th of July Guide, and use the long weekend to finish some Instructables for these awesome contests!We've got three fantastic contests this week, so get to work turning your great ideas and half-done projects into finished Instructables and enter!Pocket-Sized Contest - Think small, and win a custom laser-etched Leatherman!Get in the Garden Contest - Enter any Instructable with a gardening theme and win an awesome computer-controlled indoor composting machine from NatureMill!Art of Sound Contest - Share any music or sound-related Instructable, and win an incredible custom hi-fi tower set with subwoofer, monster speakers, and more!! Lego Combination Safe Altoids Travel Games - Pocket Size Fun Make Faux Rocks Homemade Stickers Keep cool and cook up some tasty food this weekend! Win a custom laser-etched Leatherman! Audio Cassette Loop Crocheted Eyeball Homemade Sunscreen DIY Under-Cabinet Lighting Make a Seed Bomb Recover an Old Bicycle Seat Chocolate Pasta Personalized Garden Stepping Stones Win a cool computer-controlled indoor composter! Win these custom hi-fi speakers! 4-3/4 oz Ultra-light Backpacking Kitchen Business Card with Mints Fretless Guitar with a Glass Fretboard USB Cigar Flash Memory Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


Need help figuring out how to make LEDs come on when signal is sent to speaker

Hi everyone! I've finally decided to create something. But since i'm completely new at this i need some help I want to add some interior lights in my car, and i want them to be sound activated. Currently i have 4 cathodes connected to 2 sound modules wired into the cigarette lighter. The problems i have with that are if i change the volume on the stereo, i also have to adjust the sensitivity knob on both the sound modules and because one module is under the seat and one is behind the dashboard, they react completely differently. what i want to do is get rid of the cathodes and replace them with LEDs and i want to somehow get the set that will be under the dash to turn on when an audio signal is sent to the front speakers and the set that will be under the seats to turn on and off when a signal is sent to the amplifier for the subwoofer. The key thing on this project is that i don't want to have to adjust something every time i change the volume and i want it to actually match the music, not every noise that can be heard in my car. Also i'd possibly want to replace the switch that turns on and off the entire system with a 3 way switch to have one side turn on the sound activation and the other to have the lights steady on so basically i would need to know what i would have to buy and how to put it together... Unfortunately my experience with electronics is limited to assembling a kit from adafruit to charge my ipod with 2 AA batteries and making a stun gun out of a disposable camera so i'm hoping for a simple way to do this Any help, ideas, suggestions, anything like that would be greatly appreciated

Posted by sandlehat 8 years ago


(newsletter) LED Ceiling Fan, Hot-Wire Nunchuks, Pulled Pork...

Sign-up for this newsletter: Welcome back! We still have three fantastic contests running!Art of Sound Contest - Win an incredible custom hi-fi tower set with subwoofer, monster speakers, and more!! Last chance to enter: this Sunday, July 26!Show off your creative cardboard skills in the Gorilla Glue Cardboard Contest and win a huge package of Gorilla Glue supplies and gear!Cook up something tasty for the Low & Slow BBQ Contest and win a Weber Smokey Mountain Cooker, and autographed copies of the new Low & Slow BBQ book! Help choose the winners by voting for your favorites in these contests: Pocket-Sized Contest - Help decide who wins a custom laser-etched Leatherman! Get in the Garden Contest - Help decide who wins a computer-controlled indoor composting machine from NatureMill! Make Pocket Drunken Robots An Improved Raised Bed Garden Make a Steampunk Pen Knife Ceiling Fan LED Display Enter your audio project now! Closes this Sunday! Maker Tin PVC Fruit Picker 8-Track Walkman Make Pulled Pork Submit a cardboard creation and win a prize pack from Gorilla Glue! Cook up something tasty! Run Ethernet and Phone on Cat-5 Cable Wearable Sound-to-Light Display Pocket Screwdriver Pocket Sized Soldering Kit Help decide who wins the Leatherman! Help decide who wins the composter! Anti-Boredom Pocket Kit Make a Book Headboard! Build an Attractive Upside Down Planter Hot-Wire Foam Cutting Nunchucks Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


(newsletter) Cheap Fisheye Lens, Chocolate Mousse, Laser Guitar,...

Sign-up for this newsletter: Welcome back! We have two fantastic new contests starting this week!Show off your creative cardboard skills in the Gorilla Glue Cardboard Contest and win a huge package of Gorilla Glue gear!Cook up something tasty for the Low & Slow BBQ Contest and win a Weber Smokey Mountain Cooker, and autographed copies of the new Low & Slow BBQ book!Don't forget! We also three great contests ending soon, so enter now!Pocket-Sized Contest - Win a custom laser-etched Leatherman! Closes Sunday, July 19!Get in the Garden Contest - Win an awesome computer-controlled indoor composting machine from NatureMill! Closes for entries Sunday, July 19!Art of Sound Contest - Win an incredible custom hi-fi tower set with subwoofer, monster speakers, and more!! Closes for entries Sunday, July 26! Tic Tac Tunes 4-minute Chocolate Mousse $16 Fisheye Lens for a DSLR Harry Potter Guide Submit a cardboard creation and win a prize pack from Gorilla Glue! Cook up something tasty! Hands-Free Breast Pumping Sustainable Agriculture at Home Complex Shapes Made with Cardboard Etch PCBs in One Minute! Just over a week left! The Prism: A Laser Synth-Guitar Art of Sound Highlights Tiny Rechargeable Amplifier Free Yacht Chapter 12: Kiteboat! Just a few days left to win a custom laser-etched Leatherman! Enter now to win an indoor computer-controlled composter! How to Make a Snorricam Transfer Images with Acrylic Gel Medium Emergency Vehicle Escape Keychain Send Coded Messages Sign-up for this newsletter:

Posted by fungus amungus 9 years ago


Did I fry my DC power supply with AC?

Hi yall, I was a very stupid person tonight, but I have learned from my mistakes. In short I fed my DC power supply AC voltage INTO it, I was working on a subwoofers power board this afternoon, trying to diagnose why it is continually blowing fuses, anyway later I finally figure out that the 8A bridge rectifier is visually burnt as well as two small ceramic caps near it, taking the most obvious route I replace them with the same spec parts and power on, no activity but its not burning fuses at least for now. I usually have my multimeter connected right to my 40V old "Lambda" (crap brand) power supply on the same test leads, so I can get an accurate reading of how much power I am putting INTO the circuit. I rarely work on live circuits and should have known this. I attempt to get a reading with the meter while the sub woofer is plugged in and turned on. Little do I realize that the meter and the power supply are both the same leads, so I am putting AC power INTO my power supply where it should only be outputting power. I of course see the power supplys indicators light up and show a spike of the max 40V and then slowly dying down to 0 then I hear something fizzle and smell electronics heating up. I shut it off obviously after only about a few seconds Now I cant even get it to power a lamp or LED, NO MORE POWER. Should I cut my losses and just get a new power supply or try and salvage mine?

Posted by jackillac92 7 years ago


Reduce, Re-use, Recycle!

Lately I've been taking my spare time and using it to sit down (or sometimes stand) and desolder stuff from circuit boards. Just from one old computer motherboard that no longer works, you can harvest quite a few fully functional capacitors. For my example I'll post a couple pictures I took a while ago, one is a pile of parts beside my keyboard from an old motherboard I nearly completely stripped except for the sockets and other things I didn't need or didn't have the patience for. Tonight I found 4 more things to strip down, 2 mini power supplies (one from an old xbox, one from a junk tv set top box) and two toasted subwoofer amplifiers (no I don't plan on harvesting the transistors from them). I find it completely wasteful to see all the electronics that go into the landfill, simply because it broke, and from experience a lot of electrical failures are usually limited to one or two parts shorted out or gone bad (although this is not always the case). So this is my little "effort" to help save the planet. Does anyone think I could sell bulk "used" capacitors/resistors/diodes in say, mystery bags with random types of capacitors/resistors/diodes? I'm also doing this for my own personal sanity as I have gone to fix several motherboards in the past that simply required a bad capacitor to be replaced, woopy do, but it does no good if I can't find any parts in my parts bins! What do you guys think!? Also, would someone be willing to help me (maybe through msn would be easiest) identify certain parts I've found that I'm not entirely sure what they do or they're lacking of any useful numbers on them????

Posted by Punkguyta 8 years ago


Headphone idea

I have a pair of headphones as seen by the freaky looking girl below (I got it off the site, that sure as hell ain't me). These are exactly the same model as what's in the link, but theres a couple things I wanna do to better suite me. First off, I think these are intended for kids? They don't sit on my head normally because the head strap is a little short (any ideas?) but they sit with the headband hanging off the back of my head just as good.They may seem fairly "crappy" and the speakers they included with them are shitty, just normal headphone speakers, maybe a little larger than average but nothing special. I wanted to up-grade the speakers with something maybe a little bigger (the ones in here sound pretty okay tho). I tried to see if these small surround sound speakers I had would fit, and the magnet is about 1cm too deep so that's out of the question unless I want to remove a whole lotta plastic with my dremel.So I had a second idea, what about using pager/cell phone motors (would ps2 controller motors work? I have lots of those) and either having them receive the signal directly which I'm sure wouldn't do much unless it was a small pager motor with a small voltage requirement. But, what about a simple circuit, kind of like this mod which uses the sound output of a PSP to drive a circuit that uses "seperate" voltage (ie battery pack) to drive the motor to the sound.My general idea is to have a pair of headphones that feel like you have a giant subwoofer strapped to your head. I know it can be done, I know the circuit isn't that complicated, but probably has enough parts, can someone help me get a jump start on this? I'm sure modifications to a pair of headphones is fairly straightforward. Also any suggestions on a new type of speaker that I could install would be appreciated.

Posted by Punkguyta 10 years ago


[newsletter] Rickroll Cake, Screen Printing, Gorilla Pod...

Sign-up for our newsletter here. Apr. 24, 2008 Welcome back! We have lots of news for you today. New contest! It's spring and to celebrate we're having a Flower Contest. The flowers can be fresh, dried, painted, or even crafted so get going on a great flower Instructable now! Check out these cool Instructables! Portal/Rickroll Cake Two Internet fads combine to create the geekiest eating event ever. posted by Papersatan on Apr 20, 2008 Make your own Gorilla Pod This flexible tripod mimics the real thing for only a few dollars worth of parts. posted by benthekahn on Apr 22, 2008 Photo-emulsion Screen Printing Sometimes you need to get your message out quickly and cheaply. Here's how to print a ton of t-shirts and patches fast. posted by w1n5t0n on Apr 21, 2008 A radial drill press made from spare parts Make a radial drill press on your own and get a lot more freedom of motion for your money. posted by threesixesinarow on Apr 16, 2008 Helicopter Birthday Cake Make an epic birthday cake for the li'l pilot in the house. Comes complete with spinning blades! posted by dave spencer on Apr 23, 2008 Green Science Fair! April is Photo Month! Bake and decorate! Laptop Compubody Sock Make an eye-catching hoodie for your laptop to use in public spaces for warmth and privacy. posted by bekathwia on Apr 18, 2008 Isobaric Subwoofer Improve the low-end in your home audio setup with this home-built sub. posted by toastyboy on Apr 19, 2008 The iPillow Fall asleep listening to music without headphones or any pesky cords. posted by dardy_7 on Apr 16, 2008 How to get on Xbox Live with Dialup Enjoy all the downloads and updates of Xbox Live over the old dialup connection. Still not so hot for multiplayer, though. posted by Dr.Professor_Jake_Biggs on Apr 19, 2007 Measure the drag coefficient of your car Want to make your car a lot more fructification? The first step is knowing just how much drag it creates as it moves along. posted by iwilltry on Aug 31, 2007 Now go make something awesome, and I'll see you next week! - Eric

Posted by fungus amungus 10 years ago


Old JVC Boom Box (Antique?)

Hey guys, upon my travels the other day, I stumbled upon an electornics bin or two and one of them happened to have a few "ghetto blasters" or boom boxes as other people would call em. I should really get some better pictures, but these will have to do. I brought it home expecting it NOT to work at all, as usual. It DOES work but in a somewhat limited way. I brought it home upon the conclusion that it felt rather solidly build for such a small system and it looked the nicest out of all of them. The "Problems" sort of speak: * Well for one, the left channel doesn't work, but BOTH the speakers DO work. They both have battery compartments (6 C cells each speaker in series = 9v-ish?) and they both have "extension" cables so you can unhook the speakers and place them elsewhere, the wires are 4 strand ribbon cables and the power is also transported down these wires. I find it rather retarded, because at full length, these wires are a foot long at best?! I managed to get around this debacle for now and plugged the extension wire of the left speaker, into the plug for the right speaker, powering both speakers off one channel. This works half decent, but it doesn't go as loud as one speaker would go, and it gets distorted easier at high volumes. * The tape deck doesn't work. I hit the play button and it DOES indeed make a whirring sound, so my guess is that it needs a new rubber belt for the motor, and I have no idea where to get something that small. Did I mention that apparently the tape deck, actually comes OUT of the stereo, and theres a compartment for a set of AA batteries, thus turning it into a shiny silver 80's walkman. I'm ultimately dumfounded.. * The switches on the top of the unit, primarily the two buttons that change the "fuction" or input of the boom box, are crapping out really bad, like if I set it to radio, I have to raise one switch, and push one down, but it sometimes doesn't work, or it crackles really bad, or isn't as LOUD as it should be, but if I jiggle the switches enough, I can usually coax it into working. It's annoying at best. They are really impossible to get at and they're long pushbutton switches with a long plastic rod that pushes the switch on the board. I really doubt I can get these switches open and adjust/clean them. Should I maybe get the dremel out and but some little toggle switches? * It's missing the little faceplate for the radio selector? Oh well I can still manually tune in a radio station without knowing the number, primarily 94.5 the bull here, it's pretty hard not to miss it blaring some rock or heavy metal. I like this little unit and I wanna fix it up/tweak the crap out of it. If I could get subwoofers small enough, I would upgrade the speakers, reinforce the inside of the speaker casings with epoxy, and maybe dremel some bass ports (would that be a good idea? From what I can tell, it's a totally sealed unit, but it would probably benefit from some "bass ports"). Also, would it be beneficial to "reflow" the amp board? Like theres a board with a transformer and what appears to be a stereo transistor, but like a wide one for two channels, instead of two independant transistors for each channel. So I can only imagine if one side of the chip is working, the other side should too. Would it be a waste of time to reflow all the solder joints or no?

Posted by Punkguyta 8 years ago


An idea for highly directional and loud loudspeakers

I am currently playing around with vibration experiments.Mainly in the ultrasonic range though.But when messing around with some vibration speakers I found a not so well documented misuse for themEveryone wants a big TV these days but once you have it the sound often turns out to come from a tin can.Those with a good entertainment or at least stereo system won't mind hooking the to it.The rest usually opts for a sound bar or how I like to call them shredderbox.Sooner or later they just fail to produce the sound you had on the first day - or they cost a small fortune.What is the secret to a powerful speaker?Firstly efficiency.Secondly the design.You need the right material to produce a more or less even reaction at all intendet frequencies.The design makes sure those frequencies that need extra attention get more volume output, like by using a little pipe for the low frequencies.Some even include a dedicate speaker for these low volumes.What if you could just build you own soundbar on a budget?If you have a failing soundbar with the actual speakers as the problem you could salvage the electronics.In case you can make do with headphone input or RCA connections than any cheap amplifier will do.Leaves the speakers...Vibration speakers are still underestimated for their uses...I tried the the usual approach of using a glue on vibro speaker:Place it on surface tha gives a re more or less decent sound.The thing is though that there is no ideal surface for them.A table can sound like the highs are missing, a hardwood desk might not produce any low frequencies while a window or plaster board wall bring the problem of wiring and vibrations.To check the reactions of sound on different media I, one day, mounted one speaker under a big tin can.Right in the center.The fun hit me when my tests with water were over and tried to play a song with the empty can.Of course there was some degree of tin can sound but the directional qualities together with the wide frequency spectrum made me experiment.The key is to find the right material and shape!You want something that is hard enough to vibrate properly but soft enough to allow for lower frequencies.I tried pipes, boxes, old plastic containers....But nothing seemed to provide a broad and even sound spectrum without distortions.If you vibrate a surface then only at certain, resonant frequencies destinct patterns will form if some dust or similar is place on the surface.In all other cases there is only chaos.Preventing the harmonics to form prevents harmonic vibrations to build up to distortion levels.Like it or not but waste seems to work just fine as a speaker ;)I made a plug to fit reall tight into a 2 liter juice bottle neck.The original plastic cap is just too soft.A vibro speaker glued onto the plug and the bottom of the bottle cut out and the soun was quite impressive.Proper use is however limited as the speaker would need to be mounted upright.Next thought was to utilise the bottom of the bottle too.By cutting a round hole in the side of the bottle I got an even more directional speaker with a better response to low frequencies.Placement of said hole of course affect how certain frequencies travel and where nodes can form.The size might also matter as the hoe itself, or better the material around it can get resonant at certain frequencies.You can cheat at bit though by using sticky tape, duct tape and so on as dampening meterial in badly affected areas.Especially with a wall mount for the speaker and the bottle hanging down behind the TV the effect is good compared to a standard shredderbox. The above design is certainly not for everyone although I think it has a wow factor to it if you show a decent sound coming out of a juice bottle ;)My next step was trying to find out how more fancy designs could work.So just stop reading here unless you like the idea of creating speakers that should not even work.Back in the old days we had more than just the speakers with magnets and cones.Anything that can vibrate can produce sound.It all depends on how much of it we can actually hear.My first exotic idea to really misuse a vibro speaker is a vibrating harp.Does not need to be in the classic shape though.A string in a resonance box, like a harp, guitar, violine and so on will start to vibrate at the set note.This is true even if the force for the vibration is external.You might remember the old school experiment with the two pitch forks on their boxes?Hit one and the other starts to swing too.If you make a resonance box for a vibro speaker with internal or external wire strings at different tensions or lengths you can amplify the sound for the notes that correspond to the strings.Make a relatively large box with some sturdy wires for the frequencies between 60 and 100Hz and you have a really powerful subwoofer from just 20W of input power...I think you get the idea on how to use amplifying strings now ;)My second and total misuse is the xmas tree.If you are a sparky by old trades then you might remember the mechanical frequency meters for generators or other things that required a stable supply.Well, if not than you should know the little wind up toys that play a melody with a drum and tiny forks.Imagine you would replace the glue plate with a rod.Depending on material and length harmonic nodes will form at various places and frequencies.Between those nodes the swing is maximised while the node itself appear to be stationary and without and vibrations at all.For example a steel rod of 1.2m would have a single standing wave at about 1kHz while a copper rod of the same lenght will be much lower in the frequency for a single standing wave.The xmas tree assumes that the rod is of such material that no single standing wave can form below 200Hz and that it won't swing too much at other resonant frequencies.Since aluminium is easy to work with and available in flat and thin bars already it would be my first choice for the branches of the tree.The required length is calculate based on the speed of sound in aluminium - you find online calculators for that.You want the lenght so that you end up with an even fraction of the wavelength you want to "play" with that strip.This allows for the rod to be placed right in the center of the strip where the standing wave movement is zero in the node.Make a lot of thin strips to get a broad frequency response.Placement on the rod can now be crucial.The best option I found so far is using a threaded rod and tapping the holes in the strips.The strips swing quite violently if long and at certain frequencies.And those not in resonance will still transfer their momentum to other strips.This can cause unwanted harmonics.Most evident when a single strips swigns violently at a certain frequencies.Adjusting the angle by turning it is often enough to get out of the overlapping harmonics.With enough strips it then really looks like a tree with flat branches.The sound might not be as loud and impressive as a plastic bottle as the virations are going up and down.But if placed in the right spot it not just looks nice but also makes people wonder where the sound is coming from.Last but not least my yet to be tested hidden speaker system - due to renting restrictions :(If you own a house of the standard frame design then you have plasterboard walls and ceilings.With a large enough surface of the right material, one or two vibro speakers can cover a really wide frequency range at good volume levels.So far I could only do tests in an old wooden window frame but the priciple works the same way between the wooden frames of a wall or ceiling.In my experiments a standard plasterboard sheet needs to be 100 x 100cm to get a more or less decent response for the lower frequencies.Before you rip your walls down use a stud finder and place your vibro speaker on the plasterboard between two studs or beams.I found that two speakers for the lower frequencies and three or four for the higher ones make a good sound.That is per channel and if you have the right size plasterboard sheet in the right place.No point if your left side is further away from the TV than your right.Ideally you replace the entire sheet with the speaker in the right spot on the new sheet but on the back.For obvious reasons this is far from being a perfect solution.But if you plan a full renovation anyway...A way out for older houses is the wooden floorboards.They make excellent resonators for low frequencies.The directional speakers could then still be hidden in picture frames of the right thickness and design.Anyways, I hope I gave you some ideas here ;)

Posted by Downunder35m 11 days ago