Build a Pair of Stereo Speakers




Introduction: Build a Pair of Stereo Speakers

This instructable is a basic guide for building a pair of high quality stereo speakers. The process is not difficult but will require lots of time, patience and effort.

Here is an introduction to the few main parts of a speaker:

Speaker Drivers
This includes the woofer and tweeter. The woofer vibrates at a low frequency to create bass while the tweeter vibrates at high frequencies to create treble. more on how speakers work

Crossover Unit
This is a specially designed piece of circuitry that separates incoming audio signals into high and low frequency pass. All the low frequencies are sent to the woofer and the high frequencies are sent to the tweeter.

This is the box that holds the woofer, tweeter and crossover unit. It will take up the majority of the instructable.

This is my first instructable! Please leave comments. I am not an expert on this topic but I'll try my best to answer questions.

To get started, we need to decide which speaker drivers and crossover unit to use.

Step 1: Choosing the Drivers

Firstly, we need to chose which drivers to use. Some things to think about when choosing your drivers are:

- where you intend to use the speakers
- what you intend to power the speakers with
- how much space you have or how big you want them to be
- how much money you have to spend

In my case, i will be using them in a relatively small college student room and power them with a 100 watt per channel receiver that i found in someones driveway (they were throwing it out and yes i did ask if i could have it). I have about 200 dollars to spend on the whole project.

I need something not too big but will produce a good amount of sound and came up with the following drivers:

WOOFER: Dayton DC250-8 10" Classic Woofer $26.20 x2 (one for each speaker) more
This woofer can handle 70 watts RMS and 105 watts max which is good enough for my needs. Its Frequency Response is: 25-2,500 Hz and with an Xmax of 4mm and SPL of 89 decibels should produce a good about of bass. Remember, the larger the woofer, the larger the enclosure will need to be.

TWEETER: Goldwood GT-525 1" Soft Dome Tweeter $9.50 x2 (one for each speaker) more
This tweeter can handle 50 watts RMS and 100 watts max which matches the woofer. Its frequency response is: 2,000 - 20,000 Hz and has an SPL of 92 decibels.

CROSSOVER: Dayton XO2W-2.5K 2-Way 2,500 Hz $23.07 x2 (one for each speaker) more
This 2-way crossover unit separates incoming frequencies at the 2500 Hz mark. So any sound with frequency less than 2500 Hz will be sent to the woofer and vice versa for the tweeter. This means you need to chose a woofer and tweeter with overlapping frequency responses so no frequencies will be lost while in operation. It is also possible to make your own crossover but i will not go into that.

The total cost of the woofers, tweeters and crossovers came to be $137.06 which is relatively cheap considering how expensive they get. I bought my drivers and crossover from partsexpress. They are very reliable as i've used them numerous times in the past.

Hopefully this step will help you chose the best driver for your needs. The next step will describe how to design your speaker enclosure (the box).

Step 2: Designing the Box: Part 1: Type of Box and Its Volume

After the speaker drivers and crossover unit have been acquired, its time to design the enclosure( which i will call the box from now on). It is exactly what it sounds like (a box) except has a few holes in it for the speaker drivers.

Type of Box
There are two kinds of boxes we could construct: A sealed box or a vented box. A sealed box is completely airtight and allows for a smaller total volume and a decent bass response. A vented box has ports allowing airflow out of the box. These usually have larger volumes and a better bass response. These are more complicated to construct because finding an ideal port requires more measurement and calculation. Because I don't have much space (and I'm lazy :P) i will be constructing a sealed box speaker.

Finding the Volume
First we need to determine the most ideal volume of this box. It is quite important construct a box with a volume suited for the woofer. A volume excessively small or large will cause the speaker to sound "loud" or "hollow." This table gives approximate box volumes for corresponding woofer sizes:

Woofer Size........Enclosure Volume
4"...........................0.25 - 0.39 cubic feet
6"...........................0.35 - 0.54 cubic feet
8"...........................0.54 - 0.96 cubic feet
10".........................0.96 - 1.80 cubic feet
12".........................1.80 - 3.50 cubic feet
15".........................3.50 - 8.00 cubic feet

I have a 10" woofer but since space is an issue, I'm going to make my boxes as small as possible. The volume of my box will be slightly less than 1 cubic foot. here is a more detailed guide for finding enclosure volumes

The next step is to design the box in complete detail.

Step 3: Designing the Box: Part 2: Dimentions

After approximating the box volume, we can then figure out its dimensions. Carefully considering the sizes of my woofer and tweeter, i came up with the following dimensions for the box:

10.0" across X 10.0" deep X 16.0" high = 1600 cubic in or 0.926 cubic ft

This is an over estimation because the walls of the box have thickness. Ideally the box should be slightly larger, but for my situation, i am not trying to make the most perfect sounding speakers, but the most convenient. Its close enough to 1 cubic feet for me.

I have drawn up some diagrams that show dimensions of the boxes that will be constructed. They are a bit small when viewing them in instructable's photo viewer so here are links directly to the jpg images.

Front View ............................... Side View ............................... Top View ............................... Complete View

Either click to zoom or Press ctrl and scroll up or down with the mouse to zoom in or out (this shortcut is very useful in many other apps too) It may be a good idea to open them up in a new tab/window for easier viewing (right click -> open in new tab)

My diagrams were made using adobe illustrator which worked like a charm. I recommend drawing diagrams like these for your speakers because it helps to clarify exactly what pieces (sides) you need and how big each needs to be.

In my case there will be 4 different sizes:
1) The front piece: .......................... 10.0" X 16.0"
2) The back piece: ......................... 8.50" X 14.5"
3) The top and bottom pieces: .... 10.0" X 9.25"
4) The two side pieces: ................ 9.25" X 14.5"

0.75" thick particle board will be used for all pieces. We are now ready to go out and buy some particle board. (Make sure to get a piece big enough to be cut up into all the smaller pieces)

In the next step we will cut each side to its corresponding dimensions and route the holes.

Step 4: Preparing the Sides: Part 1: Sawing

Next we need to cut out the large 0.75" particle board into the 4 different pieces listed in the previous step. Here are the pieces listed again:

1) The front piece: .......................... 10.0" X 16.0" ........... (2 total, 1 for each speaker)
2) The back piece: .......................... 8.50" X 14.5" ........... (2 total, 1 for each speaker)
3) The top and bottom pieces: ..... 10.0" X 9.25" ........... (4 total, 2 for each speaker)
4) The two side pieces: ................. 9.25" X 14.5" ........... (4 total, 2 for each speaker)

Using a table saw is probably the fastest and most ideal way to cut these pieces. But don't worry, if all you have is a hand held circular saw (like me) here is an alternate method to cut the wood. (if you have a hand saw or you don't have a saw, you might be screwed)

1) Find a long, straight piece of wood to use as a guide for the saw.
2) Draw out the line in which you need to cut along.
3) Find the distance from the saw blade to the edge of the actual saw. (only have to do this once)
4) Draw a line parallel to the first line, at the distance in step 3.
5) Clamp the wood guide, from step 1, along this line.
6) Cut the wood! The saw should glide along the wooden guide and make a perfectly straight cut.

Make sure all your measurements are very precise! Also don't forget to consider the thickness of the blade while cutting. The above method is tedious but can provide very accurate cuts.

It really doesn't matter how you cut the wood, as long as you end up with all 12 pieces at the end.

Next we need to cut the holes on which the speaker drivers will be mounted.

Step 5: Preparing the Sides: Part 2: Routing

The best way to cut the holes for the speaker drivers is to use a router. If you have a circle jig (like a compass for the router to cut out circles), this part is quite straight forward. I don't have one so i constructed my own jig to attach to my router.

To construct a jig:
1) Find a relatively skinny piece of wood about 3" by 10" by 0.25" (see photos).
2) Cut a hole at one end, large enough for the router bit to fit through.
3) Drill holes and find screws to fasten the wood to the bottom of the router.
4) Make sure the screws don't stick out the bottom by hollowing out the top of the holes.

On with the routing:
Next, measure the radius of your woofer. You will want a small gap between the edge of the woofer and the wood so add 1/16 of an inch or so to the measurement. This will be the radius of the first cut.

With your homemade router compass attached to the router, measure the radius: from the edge of the bit (not the center) to the point on router compass where it will revolve around. Drill a small hole at this point (on the compass) and also drill a hole on your particle board at the center of the woofer hole. Screw your router and compass to the particle board. (see pictures to clarify if all this seems confusing)

Check to make sure the router will cut in the correct location by lowering the router to the wood. Set the depth constraint on the router so it will make a cut half way though the wood. (The depth of this cut depends on your woofer). Finally we are ready to cut the wood, just turn it on, plunge and move it in a circle.

The previous cut creates the shelf on which the woofer's edge will sit upon and be screwed to. Next we have to make the actual hole. Repeat the above process except with a smaller radius and with the depth constraint set deeper, so the bit goes all the way through the wood.

Repeat all of the above for the tweeter hole. From here we will start to assemble the box.

Step 6: Assembling the Box

There are numerous methods one could use to assemble these boxes. Gluing and then clamping the sides together is probably the easiest and most common way.

I will be using an alternate method which consists screwing rather than gluing. For this method the two materials needed are 5/4" wood screws and plenty of 1" by 1" which we will cut to appropriate lengths.

Basically what we will do is wedge lengths of 1" x 1" into the corners of the box and then use screws to hold the sides together through the 1" x 1". Here are specific steps:

1) Cut the 1" x 1" into lengths that fit along the corners of the inside of the box.
2) Drill screw holes into each piece. Usually 4 (2 at each end, perpendicular to each other on adjacent sides). The size of these holes should be big enough for the screws to slip.
3) Clamp the box together as it should be when assembled. Lay the lengths of 1" x 1" into their appropriate positions then mark where to drill into the particle board. You can do this by poking a skinny pencil through the holes already drilled into the 1" x 1".
4) Take away the 1" x 1" pieces and drill the holes marked on the particle board with a smaller bit which allow the screws to grip.
5) Put the 1" x 1" pieces back into their same positions then screw together the box.

Do not worry if the sides don't match up perfectly or if there are slight gaps in the joints; we will deal with this in later steps. If the steps seemed confusing refer to the pictures to clarify (I'm a visual learner so pictures help me a lot).

Step 7: Sanding, Filling and More Sanding

Once the enclosure is assembled it needs to be prepared for painting. All edges need to be flush with one another and all gaps need to be filled with wood filler.

First, sand any edges that stick up. A power sander makes this much easier but still takes lots of time so be patient. I used 60 grit sandpaper; for this part, the more coarse the better.

After all edges are flush with one another, fill in the gaps with wood filler. Use a putty knife to lay down the filler and let it dry. Do this for all the little holes that appear on the edges of the particle board too.

Sand the whole box again with a finer grit sandpaper. I used 220 grit for the second time around. If you find any more holes that need to be filled, repeat the last step.

Sand it again with even finer sandpaper such as 320 grit and finally 600 grit. The surface should feel completely smooth. Be sure to sand the corners a bit, rounding them to your liking.

The box is now ready to be painted.

Step 8: Priming and Painting

After the box has been sanded, it is ready to be primed. There are a couple different primers available to use. One is spray paint primer and the other is brush on primer. I used both.

First set up an a painting area with a ground cover such as newspaper. Just a warning: spray painting can leave a residue on surfaces in the room but can be wiped off. Also, wear a mask to prevent inhalation of fumes and paint; you might find yourself with colorful snot if you don't.

Spray paint both boxes with primer and leave it to dry for a few hours. This layer doesn't need to be very thick. After It has dried, use a brush to paint on a layer of canned primer. This layer will be a lot thicker than the spray paint.

I found this method works well for a few reasons:
If you use brush on primer directly on the sanded particle board, it lifts up many small fibers and the finishing surface is rough. Using spray primer only, seemed to give a layer that was too thin. Therefore i sprayed first, to prevent fibers from being lifted, then used the brush on primer to give it some substance.

Leave this to dry overnight. The surface may be slightly rough after priming. To prepare it for the next layer, lightly sand down the box using fine 320 grit and then 600 grit sandpaper (or similar).


Spray the first layer of the final color of your choice. I chose a navy blue glossy finish.

After letting the paint dry for 24 hours, apply the second coat.

WARNINGS: let the paint dry for 24 hours, do not paint in excessively hot/cold or humid/dry weather, do not spray the paint on too thickly. Something went wrong with my second layer as it started blistering and drying patchy. I had to let it completely dry, sand it down and then reapply primer and paint.

Step 9: Decorations

This part is not required but if you want to add a design or some kind of decoration here is an option:

Use stencils to spray paint designs onto the box. I had absolutely no experience in this area (not a big art person) so if there is anything i should do differently, let me know.

First, find an image you would like to put onto the speaker. Something simple will make your life a lot easier. I chose a hibiscus flower for the front, simple logo for the bottom and a couple others. Print out this image and then glue it to a stiff piece of paper using rubber cement.

Use a knife to cut out the stencil.

Glue the stencil to the speaker where you want the image to go using the rubber cement. This prevents spray from going under the stencil. (don't worry the rubber cement comes off easily).

Wrap the rest of the speaker in a bag and tape a large piece of paper around the stencil to prevent any spray from reaching your nicely painted box. Then spray paint the stencil.

Take the stencil off after a few minutes and let it dry. Use a piece of masking tape and lightly stick it to the paint to remove excess bits that may have resulted from the rubber cement.

The above process can provide very good results but takes practice as with most things.

Step 10: Preparing the Back Panel

To finish the back panel all we have to do is:

Drill holes
to screw it down once everything is done. Drill holes large enough for the screw to slip in the particle board then drill corresponding holes in the 1" X 1" thin enough grip the screw.

Construct and install the terminals
It is possible to buy finished terminals then all you would have to do is make a hole in the back panel to mount it. But since they are so easy to make, might as well just make it.

The first thing to do is drill a large hole (minimum 2 inches in diameter) into the back panel. An easy way to do this is with a circular sawing drill bit (see pictures). Next we need 2, 3" by 3" or more of a solid, flat, firm piece of plastic, acrylic or metal etc. Drill two holes in each piece for mounting the electrical terminals. Then glue the piece to the back of the hole and make sure it is airtight. I used epoxy but silicone or other glues will work just fine.

There you have it, the back panel is finished. If you want you can put a final layer of paint on it but since its at the back, its hardly seen.

Step 11: Preparing the Insides: Part 1: Crossover Unit and Drivers

We are almost done! the next thing to do is mount everything in place and wire it all up.

First we need to mount the crossover unit. I chose to mount it on the bottom of the box. All you have to do is drill a few holes into the bottom of the box and screw it down. I recommend placing some rubber between the crossover unit and the bottom of the box to prevent rattling. If you have a blown bicycle inner tube, those work perfectly, else rubber can be found in many places.

Next mount the speaker drivers. Get some machine screws and nuts that fit the mounting holes in the woofer and tweeter. Drill corresponding holes along the little shelf we routed out in the particle board and then bolt down the drivers! To enhance the look of your speaker, spray paint the screw heads a different color!

The wiring is VERY simple to do. Two wires for the positive and negative leads enter from the terminals and connect to the crossover unit. Two wires (positive and negative) leave the crossover unit and connect to the woofer. And lastly two wires leave the crossover unit and connect to the tweeter. See the wiring diagram for clarification. You will need a soldering iron and solder for this.

Some new stuff (added august 4th): Zobel Network!
Since the woofer is quite large, its impedance rises due to self inductance. The crossover does not take into account this higher resistance. This in turn causes the woofer to sound 'loud' at frequencies close to the crossover frequency. If your woofer is large like this, consider installing a Zobel network across the terminals of your woofer to improve sound quality. The Zobel network will help to restore the impedance to a lower value allowing the crossover to preform correctly. Here is more on Zobel networks. This network consists of a resistor and capacitor placed in series between the terminals of the woofer. For my speakers a 100V non polar electrolytic capacitor and a 10 ohm 10 watt resistor should do the trick (partsexpress has them for pretty cheap). I haven't actually added this in yet but am planning to in the future.

Step 12: Preparing the Insides: Part 2: Sound Insulation

The woofer creates sound waves inside the box too, which in turn can reflect off the walls and bounce back out the front. This degrades the sound quality of your speakers. To prevent sound wave reflections and resonance build up inside the box we need to install sound absorbing material.

One common method is to place a bunch of fiberglass into the box and seal it up. Fiber glass is pretty rough and messy stuff so i decided to line the sides of my box with carpet instead.

Cut out rectangles and squares of carpet using a knife. The most important place to put the carpet is on the back wall of the box. I put a bunch here and a few strips on the other walls but remember: this material takes up volume too so don't use too much. Use epoxy or a staple gun or both to fasten the carpet to the walls. Make sure they are securely fastened to prevent rattling.

A very last optional thing to do:
Line the edge of the back panel with a bit of rubber. I glued some bicycle inner tube down to help keep the box airtight. If your pack panel fits perfectly you probably wont have to do this but make sure the enclosure is airtight.

WE ARE FINISHED! don't screw the back on yet, its time to test it out!

Step 13: Test It

The speakers are DONE! Connect it to an amplifier and test it before closing up the back. (don't want to screw it all together and find it doesn't work right?). If it doesn't work recheck all the connections. If it works (it most likely will) screw the back on tightly and enjoy! Wipe down the speaker with a cloth to get any dirt or dust off.

This is the second pair that i have made. I was very pleased with my first, they were just lacking in the lower frequencies slightly. (woofers may have been to small/not powerful enough).

Here is a video of them in action. Audio is obviously lower quality than how they really sound. The volume was turned up quite a bit too :P

I definitely found that all the time and effort put into this project paid off. The speakers are used almost every day and i am extremely satisfied with the quality of the sound they produce. With 100 watts of power this pair can produce plenty of noise (perfect for those parties you know?). If you like to build stuff and need an audio system this is a very suitable project that i recommend!
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Question 6 days ago on Step 3

First of all it was very nice to see your project. I want to build a pair of 3 way Tower speaker for my living room. Want to use 2x woofers,1x midrange & 1x twitter in each tower. Can you suggest me any box design and crossover and choosing the right drivers for a good all round sound. Thanks & Regards.


2 years ago

Hello can i ask any advice.
I want to build a 3way speaker with 2woofer, 1midrange, 1tweeter 500watts 8ohms. What is the specific wattage of that woofer,midrange,tweeter? Thank you..

Roderick Queral
Roderick Queral

Question 2 years ago on Introduction

Can it be that I use only one woofer (integrate a 15" dia.) to a pair of 3-way speakers to boost its bass drive?

I am planning to make just one casing for all of these set of speakers (horizontally) with the 15" woofer (300W) placed at the center.

Please teach me too what will be the dimension for this box and its design.

Thank you...


Question 3 years ago on Introduction

I have an 1800 watts per channel of amplifier. I installed my 3way size 10 and 500 watts by 2 speakers on it after how many minutes my tweeter and midrange are not working anymore. Please help this on me. Now my question is how much wattage of tweeters and midrange are compatible to my 500 watts woofers . Thank you in advance


8 years ago on Step 13

Really cool project! Being a high school student I don't really have space issues but I would like them to be portable. What do you think about using speakers with the woofer, mid-range, and tweeter all in one? Could I use the same type of box for a sub-woofer? I found 6 1/2" speakers that are rated at 400 watts maximum. Are they at least as powerful as your 10"? Here is a link to them.
I also found a cheap sub-woofer (those speakers kind of maxed out my budget) to use. Do you think they will match the speakers well? (the 8" ones) . Really cool speakers you built! I want to laminate nice wood on it instead of painting them. Thanks!


Reply 8 years ago on Step 13

Hi Squidyman, I'm glad you're thinking about making some of your own speakers. The drivers you've linked above are both made more to be used in cars but I am sure they would sound decent in a portable boom box/stereo application you are aiming for (I'm assuming, is that correct?). Good thing about the first driver is that its basically a woofer/mid/tweeter all in one so all you would need are a couple of those and you're all set (or 4, could have two sets of two in series for 8 ohms on each channel). Though these speakers may not be the highest quality, they could be perfectly good enough for your application.


Reply 8 years ago on Step 13

I have been researching drivers/tweeters/subwoofer for a while now. I am not really sure what too look for when selecting one because there is such a variety. I have access to all the tools you have described (table saw, router, etc...) so cabinet making is not a problem. What speakers do you recommend that are powerful, sound decent, and are under $60 for two? I plan on spending $30 on a subwoofer. Also, you did not mention anything about subs in you article. Can I put my sub in the same box as my mids and tweeters? Would the box have to be bigger? To answer your question, my goal is to build speakers and have the amp built in (like the speakers in your article with a separate amp box on top of them) that sound good, but still can be portable enough to occasionally take to party, etc. My entire budget for everything is about $180 but I can stretch it to $200 if I have to. I already have the cabinets taken care of so I don't have too include those in my budget. What speakers do you recommend? As you can tell, I am a complete noob to speaker building! I will include a link in to speakers I have found from my research in another reply.


Reply 8 years ago on Step 13

Hi Squidyman, Does your 200$ budget include the amplifier unit? Here are some examples of low budget but decent quality drivers you may be able to use together:

Two of each of these comes to about $75 which leaves 100$ left over. Let me know what you think.


Reply 8 years ago on Step 13

If I use the speakers you suggested would this amplifier work?
That would leave me either 1 channel per speaker or 2 extra channels for a dual 4 ohm subwoofer. I think that would be the simplest plus you know what your doing and I don't..... I could use a refurbished server power supply to provide power for about $30 on ebay.


Reply 8 years ago on Step 13

This amp should work fine. I would stick to a home audio amp rather than one designed for use in cars. Probably better quality sound. How big of a system are you trying to build? The speakers I mentioned should be pretty adequate in terms of decent power/volume and sound quality. If you'd like a much louder/powerful system then you might try to find some larger drivers (like the tweeter/woofer you found below) You can either chose 4 or 8 ohms. It'd be easiest to use the same impedance for both the tweeter and woofer though. If you use an 8 ohm tweeter and 8 ohm woofer, the systems impedance doesn't equal to 4 ohms, it'd still be 8. The woofer and tweeter are not connected in parallel or series, it must go through the crossover network which is (should be) matched to 8 ohms also. Let me know if you have any more questions, ill do my best to help!


Reply 5 years ago

Box mesrment for sony fb 102e mage bass..


Reply 8 years ago on Step 13

Hi again. I believe I have found what I am looking for. Due to weight constraints I do not want a stereo system. MDF weighs a lot and having two cabinets weighs to much to be portable. I want to go with this woofer. and this tweeter
and this crossover
and this amplifier
and 8 ga wire. What are your thoughts? I am really close to needing a mid woofer as well but I think it should work out fine. I probably will have to buy and equalizer, but I don't think I will right away..... It will come out to $127 with $5 off and free shipping on everything! parts-express has free shipping over $50 right now fyi


Reply 8 years ago on Step 13

Just wondering if as well as my other questions you know of any 8 ohm amps that are as powerful as the 4 ohm amp for how much they cost? Do I really need 300 watts of power? The most powerful system I have built yet is a 90 watt system which seems like enough except that I did not use any bass, only mid and treble speakers. 8 ohm amplifiers seem a lot more expensive than 4 ohm ones.


Reply 8 years ago on Step 13

okay. I am still not sure if I can put a sub in the same box as the woofer and tweeter. I was wanting to use a car amp because I have two 575 watt 12V server power supplies that I don't use. I like the other amp, except I have to supply 40 volts for it to get anywhere near its RMS. 40V power supplies are expensive. My parents have a very nice Yamaha receiver they don't use that I might be able to buy from them but it ruins the idea of "portable" and has a lot more features than I need. If I use the speakers you described would I need a subwoofer to fill in the lows? Is this a decent subwoofer?
A lot of people say Pyle is a Pyle of crap. Is that true?
I thought this amp would work nice and runs on 12V
It also appears to have a crossover network built in for a sub. I could use one channel for a tweeter and woofer and another for sub. It would come out to about $175 for amp, equalizer, woofer, tweeter, and wire and crossover. It wouldn't have 2 channels for audio but would I notice? Thanks for all the help!


Reply 8 years ago on Step 13

They look nice! yes, $200 includes amp. The budget does not include power supply, which I already have. My budget will vary from $180 to $220, depending on what I get for Christmas. I found a board only amplifier series on Parts Express. I am not sure if I should use a car amp or regular amp? 4294967118 4294966020 4294967079&Ne=10166&Nrs=collection()/record[endeca:matches(.,"P_PortalID","1") and endeca:matches(.,"P_Searchable","1")]&PortalID=1

Should I go with 4 ohm or 8 ohm speakers? Would it be better to go with one nice woofer like this one
or two okay woofer? (same thing with tweeters, except I don't know what a good tweeter is). I have several high power supplies to chose from that I have so I don't have to include that in the budget either. I am trying to come up with $100 of parts express parts so I can get free shipping and $10 off. If I use the tweeter and woofer together ( 8 ohm + 8 ohm) that will equal 4 ohms right?
btw.... I did find a nice tweeter but it is 4 ohms.
Sorry for all the questions


5 years ago

Best dip bass box for my sony fb 102e..


6 years ago

I love it
Thanks for it man #p


7 years ago on Step 2

If I wanted to add a subwoofer into the same box what extra would I need?