Instructables
Picture of DIY speaker backpack

In this instructable i would hopefully so you how you can create your own speaker backpack like the one pctured.

 
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Step 1: TOOLS, EQUIPMENT, ETC...

Picture of TOOLS, EQUIPMENT, ETC...
the items you will be needing to complete this task are:
TOOLS: sissors
               screwdriver
               tape (if necessary for taping the speaker contacts)
               marker
ITEMS: an old backpack (that you dont mind cutting up)
              a old binder for support
              a pair of speaker (the size is up to you)
              speaker wire              
              a speaker plate or mount to hold your speaker in place
              mini jack cable
              mini amplifier
              rechargeable battery of 12v (do not exceede 15v)

Step 2: Chossing speaker size and cutting hole for speaker

first thing is to decide on the size of the speaker by check how much room you have where you are going to mount the speakers. i decide to go as big as i can with the speakers on the side of the backpack. i chose 5X7 pioneer speakers that i found at a junkyard inside a ford bronco and i cut out the speaker mounts aswell.

once you choosen the speaker size and have the mount ready its time to mark and cut the holes where the speaker will be positioned and mounted.

Step 3: Mounting the speaker and attaching the wires

next thing is to attach the speaker wire to the speakers and mount them on the backpack.

you can add a piece of tape to the wire connectors on the speaker for added protection and to keep it in place.

mount the speakers and run the speaker cable to where your amp is going to be. i ran my wire to the front pocket because that is where i have decided to mount my amp.

insert a binder if you want support to keep your speaker facing out.

Step 4: Wiring everything up

now its time to wire the amplifier
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i need to see if i can find this stuff although i do have a pair of computer speakers. they just too quiet for me tho

RogerC11 month ago

I have a powersport 12v battery normally used in boats and bikes, would that work too? It has AGM technology, no idea what that means.

Reform1 year ago
http://www.hifisoundconnection.com/RE-Audio-SX18-D4-18-Dual-4-Ohm-SX-Series-Car-Subwoofer-SXX18-D4-SX18D4-SXX18D4-REA-SX18-D4 could you tell me everything I need to make this work
Mr.Bass10102 years ago
I make these things... They're really cool to make and use! I've made a few already and still have them. The first one I've ever had made was a small but powerful (for its size) backpack audio system using a 2.1 Ch amplifier with an output of 5W RMS for the Sub and 1.5W RMS for the satellites. It sounded okay had some noticeable audible low bass but was mostly mid-ranged kind of bass (it at least shook the backpack fairly hard)

My next build will happen this year in mid-October and it will be using Logitech's Z506 amplifier module which has an impressive sound power output of 150 Watts total power which will be powered by one Milwaukee M18 54W/hr (or higher W/hr) red lithium 18Volt rechargeable battery. This build is gonna be way much more powerful than any other build I've ever made. The Subwoofer in this build will be a SEALED 270Watts RMS 5.25" extreme Long-Throw High-Excursion Woofer (I've took from an unused RCA Audio System) Which will take place in to a large backpack and will weigh around 20Lbs total. (From the heavy 74 Oz. [4.6 Lbs.] Subwoofer, Batteries, Amplifier Module, and speakers, etc.) I know how to make these things and I enjoy using them. Total system build cost: about $250-$300. Sorry, I don't sell these that I make (mainly because of the way I make them it's very dangerous and power hazardous to pros alike). One thing cool about making a powerful backpack "boompack" is that you can enjoy powerful loud rumbling BASS wherever you go and nobody else really can get them (only if they know how to make one) because major Manufacturer companies don't make these things.
Brandonn1512 years ago
On the amp, The red and white wires you plug in, What are they used for ?
How heavy is the final backpack and what sort of speakers would you recommend?
gbmaster1372 years ago
here is my finished product, even with a place for the amp
2012-03-27_22-44-10_800.jpg2012-03-27_22-44-26_713.jpg
djvicster130 (author)  gbmaster1372 years ago
nice looks like it turned out great
duckef2 years ago
An old pair of colored or black tights make good dust covers
juni3033 years ago
i have one question could yhu tell me the brand name of the amp yhu used to make this project
djvicster130 (author)  juni3032 years ago
sorry for lagging to reply to your comment. but the amp is not name brand or anything the link is for a amp of the same type

http://www.ebay.com/itm/Mini-Hi-Fi-Stereo-Car-Audio-Amplifier-w-Super-Bass-Out-/280644728772?pt=Car_Amplifiers&hash=item4157bab7c4#ht_2938wt_952
I'd also like to know
djvicster130 (author)  shaneomacmcgee2 years ago
sorry for lagging to reply to your comment. but the amp is not name brand or anything the link is for a amp of the same type

http://www.ebay.com/itm/Mini-Hi-Fi-Stereo-Car-Audio-Amplifier-w-Super-Bass-Out-/280644728772?pt=Car_Amplifiers&hash=item4157bab7c4#ht_2938wt_952
mwellington2 years ago
im so close how do you connect the battery to the amp thats all i need to know can you give me like a link to a battery or the connector or something online that i need
djvicster130 (author)  mwellington2 years ago
this link has a battery the charger and the cable to connect to a amp like the one i used and should give a good 2-3 hours of play
http://www.ebay.com/itm/12V-DC-Rechargeable-Li-ion-Battery-CCTV-Cam-1800mAh-/190459066434?pt=AU_Electronics_Batteries_Chargers&hash=item2c583eb842#ht_2960wt_1139

the second link is to a longer life battery i say about a good 5 hours of play

http://www.ebay.com/itm/12V-DC-Rechargeable-Li-ion-Battery-CCTV-Cam-4800mAh-/250670998641?pt=LH_DefaultDomain_0&hash=item3a5d27e471
NuttinNate2 years ago
What if I can't get or don't have speaker mounts for my speakers? I got my speakers from a Audiovox radio/CD player. The speakers were in their own thing and connected by speaker cables. They didn't have a speaker mount.
Link: http://www.epinions.com/review/pr-RCA_RS2035_COMPACT_STEREO_SYSTEM/content_223680368260
djvicster130 (author)  NuttinNate2 years ago
sorry for taking a while to respond but you can make a speaker mount out of plywood buy cutting it with a saw to fit the size of your speakers. or you can also jus glue them to the fabric of your backpack
Vijster13 years ago
Just Finished Instructable - http://www.instructables.com/id/MP3-Back-Pack-Speakers/
jg-stah3 years ago
muahahaahahah i put a 400W 7 inch subwoofer in mine!
mzung3 years ago
This DIY speaker backpack is more home improvement projects that are fun and easy to do! www.sabineshome.com
i am planning to put a car amp and pseaker in one of these
vibe-wheeled-duffle1.jpg
djvicster130 (author)  aidanjarosgrilli3 years ago
that would make a nice portable pa style system..
gbmaster1373 years ago
hi, this was the instructable i was looking for i already got this amp (http://cgi.ebay.com/Mini-Home-Hi-Fi-Audio-Amplifier-Amp-Motorcycle-mp3-Kit-/170383475331?pt=Car_Amplifiers&hash=item27aba58283#ht_4079wt_905) which look just like the one you have i still don't know which of these 2 batteries would work better with the amp 1 http://cgi.ebay.com/DC-12V-Li-Ion-Battery-Pack-4-LCD-Video-Monitor-/350471628039?pt=LH_DefaultDomain_0&hash=item5199bca507#ht_3836wt_905 2 http://cgi.ebay.com/12V-10AA-Battery-Pack-LCD-Video-Monitors-/200619591355?pt=LH_DefaultDomain_0&hash=item2eb5dc06bb#ht_3691wt_905 and i would like to know how can i make it with a 6" subwoofer and 2 4" speakers
djvicster130 (author)  gbmaster1373 years ago
for the battery if ur running tight on money i would recommend this one

http://cgi.ebay.com/12V-DC-Rechargeable-Li-ion-Battery-CCTV-Cam-1800mAh-/120599449060?pt=AU_Gadgets&hash=item1c14498de4

or this one

http://cgi.ebay.com/12V-DC-Rechargeable-Li-ion-Battery-CCTV-Cam-4800mAh-/250670998641?pt=LH_DefaultDomain_0&hash=item3a5d27e471

for connecting the 2 speakers n 1 sub you may jus have to mickey mouse it and connect 1 speaker and a sub to the right channel and connect the other speaker by itself to the left channel.
axeman9113 years ago
awesome idea, i made one but with a sub woofer hooker up to an amp and then two are other regular speakers with it so its like a home theater surround sound
esmith43 years ago
hi, i am looking for a mini amp and i found this one:

http://cgi.ebay.com/Mini-Hi-Fi-Audio-Amplifier-Amp-Motorcycle-mp3-ipod-GIFT-/250739126220?pt=Car_Amplifiers&hash=item3a61376fcc#ht_3862wt_1230

but the only problem seems on the back it dosen't look like there is any place to solder the audio wire like you did in your tutorial. would this amp i am looking at work?
djvicster130 (author)  esmith43 years ago
Yes that amp will work.. It's the same amp that I have the only difference is that that one is the newer version of the amp
also how do you recharge the 12 volt battery when it is out of power. also how long does it last?
djvicster130 (author)  esmith43 years ago
You can use a car battery charger or a trickle charger will work too.. But if you don't have ether you can always use a 12v ac/dc power adapter n jus cut the wire n strip it n connect it to the leads on the battery while charging
the batteries i found seemed a litle sketchy as far as actually connecting them to the amp. will this unit work?

http://cgi.ebay.com/12V-10AA-Battery-Pack-LCD-Video-Monitors-/350447791954?pt=LH_DefaultDomain_0&hash=item519850ef52#ht_3663wt_907

it says its for LCD monitors but it look like it would work fine with anything that is 12 volt
djvicster130 (author)  esmith43 years ago
If u use that battery pack it will be perfect because the amp use that same style connector to power it
clowsrock3 years ago
hey everyone i just got the same exact amp off of dinodirect.com, its a UK company so it takes about 2 weeks to get your stuff and it cost 20$
felixblake33 years ago
WAT SIZE SPEAKER DID YOU USE
djvicster130 (author)  felixblake33 years ago
i used 5x7 pioneer speakers
would you need more battery power if you where to put a sub in the backpack? and where did you get the mini amplifier?
djvicster130 (author)  gordoschaffer3 years ago
it all depends on the size of the sub.. the amp i got from ebay.. its a 2 channel amp so you can run say a 6 inch computer sub on one channel and run a tweeter or any speaker for your vocals on the other channel.. you can runn a 12v battery but keep in mind the high the amp hours on the battery the longer it will last playing music..
hey, thats pretty awesome. would you mind telling me where you got the battery?
djvicster130 (author)  andygonzalez3 years ago
the battery i got i actually got it from a yardsale.. but they sell those batteries at any hobby store.. you can also go to a hardware store and get a 12v battery that is used as a backup for house alarms.. and another place i found usefull is ebay they have some 12v rechargeable batteries aswell that are compact.. anyother questions jus feel free to ask.. n let me kno if u decide to make one..
gamecube2464 years ago
Where would i be able to get a compact 12v Battery like yours?
djvicster130 (author)  gamecube2464 years ago
you can try going to a local hobby store and check what they got to offer.. but that might cost you around $40, you could sheck on ebay as well last time i checked they had a decent battery for around $15
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