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Old 24th September 2007, 06:58 PM   #1
diyAudio Member
Join Date: Sep 2007
Default DIY Boombox Worklog and Partlist

Two weeks ago, my friend and I were stuck inside working and listening to music, and it was an unbelievably nice day out. We started talking about getting a nice boombox, so we went off on a tangent and searched for boomboxes and ghettoblasters. To both our amazement there was hardly anything that looked decent. And anything that did look decent ended up being $150+, wasn't very portable and still couldn't do more than a couple watts without major distortion. We went back to work and I tucked this gripe into the back of my mind.

Last week I pulled it out, and went to work.

The boombox will be...
under $175
under 15 pounds
a manageable size
of decent sound quality
loud for rocking too
playable for 3+ hours at max volume.

Components List:

5.25in Car Speakers
Speaker Covers
amplifier this thing is AMAZING. Regardless of this project, you should own one if you own speakers. It especially likes high efficiency speakers aka 87dB/2.83V/1m and up.
Arm Strap I got my strap locally, but this thing looks nice. Or you could just salvage one from an old bag.
Rubber footpads
louvered dish
blank dish
speaker cable.... you need 2 feet of it max. find a friend with some if you don't have it.
2 d-rings to connect strap... $6
24in X 48inX 1/2in birch plywood.... $10-15 at local home depot.
can of spray paint in your favorite color... $5
wood glue... cheap

This puts me just under $175 including shipping/tax. I already had some of the components sitting around. If I wasn't so lazy, I would have salvaged more. Recycling combined with some cheaper full-range drivers and I could have easily brought this project under 150.

I already own a lead-acid battery charger/conditioner amazon has some for... $30-50

Dimensions: 8in X 8in X 16in
Miter joints will be used whenever possible
The back will removable for future access.
Full drawings will be up in a week. For now, this will have to do...

Click the image to open in full size.
don't laugh at my skillz too hard
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Old 1st October 2007, 02:00 AM   #2
diyAudio Member
Join Date: Sep 2007
I have most of the material and components now. I just need to make the time to cut and glue the cabinet.


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more available upon request.
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Old 1st October 2007, 02:08 AM   #3
diyAudio Member
Join Date: Jan 2004
Location: Toronto, ON, Canada
How do you recharge the battery?
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Old 1st October 2007, 02:38 AM   #4
diyAudio Member
Join Date: May 2007
Send a message via MSN to guitar_joe
Sorry for interrupting, a quick note to the 454casull.
"Yeeeeeeeehaaaaaaa!!! Gid of my laand!!"
"I'mm gonnna getchaaa!!!"
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Old 1st October 2007, 05:53 AM   #5
diyAudio Member
Join Date: Sep 2007
Originally posted by 454Casull
How do you recharge the battery?
Oh, guess I forgot to mention that a 12v lead acid battery charger will be needed. I use a Battery Tender Jr.

Another $30-40 tacked onto the price if you need one of these.

Anything spent on the battery system here, I consider negligible. With repeated use it pays for itself.
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Old 5th December 2007, 12:27 AM   #6
NED 209 is offline NED 209  Ireland
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Join Date: Mar 2007
hi navin, take a look at these puppies, theyre rated ay 95db! most sensitive car speakers ive found, and ive done a lot of looking
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