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Old 22nd November 2009, 02:29 AM   #1
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Default Homemade Backpack Boom Box

I'm building a backpack boom box. My main goal with this project is to make the loudest possible system with awesome bass. I plan to run it with a car battery and this amp

700W V3 Stereo Amplifier HIGH POWER 40WX2 RMS 2 Ohm - eBay (item 280390314152 end time Nov-25-09 14:12:28 PST)

now I'm trying to decide what speakers to pick. I would like to have one big 12" sub on it. but as far as tweeters i dont know what to do, or if I even need tweeters. If i did have them then i would like for most of the power to go the sub how could i do this being the amp doesnt have balance control?
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Old 22nd November 2009, 03:05 AM   #2
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That's likely a 20W RMS x 2 amplifier. It only draws 2 amps at 12v according to the power connector. That would indicate that it's less than 20W RMS per channel.

Edit:
According to the information below the images, it uses a TDA8566Q which can drive 2 ohm loads but it still won't do more than ~40w/ch.

Last edited by Perry Babin; 22nd November 2009 at 03:13 AM.
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Old 22nd November 2009, 03:32 AM   #3
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Well, if you're really interested in making the loudest possible boom box at all a copy of mine would do the trick.

(see link in sig)
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Old 22nd November 2009, 03:42 AM   #4
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ya I had seen that post earlier and that is a beast! I'm would like to do something like that with just one huge sub and one tweeter, to save weight, space, and money. btw what amp did you use?
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Old 22nd November 2009, 07:40 AM   #5
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Quote:
Originally Posted by wmswilson1 View Post
ya I had seen that post earlier and that is a beast! I'm would like to do something like that with just one huge sub and one tweeter, to save weight, space, and money. btw what amp did you use?
Amp6basic from www.41hz.com but could be any tripath 2020 based amp. I just think this one sounds the best.
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