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Old 27th January 2004, 05:46 PM   #1
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Default Converting a car amp to home amp

as the topic says, im interested in doing this -- ive been into car audio much longer than tinkering with HT stuff, and i have a few car sub amps id like to convert (if possible).. i assume the simplest way would be to make a huge 12vdc supply and simply feed the car amp, but that seems like it would not be cost effective and converting from 120vac to 12vdc to smps to +/-DC is a waste and ineffecient -- would it be possible to measure the dc rails of the amp, and simply get a transformer for the +/- rail voltage and bypass the amp's SMPS?? and if that is possible, will the amps internal options (like crossovers etc) still work, or are their functions derived from the primary 12v? no i do not have schematics for any amp i am considering, this is just a general question -- has any1 ever done this before or is it just a crazy idea, tia

-chris
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Old 28th January 2004, 03:52 AM   #2
asauer is offline asauer  United States
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Yes, it's been done before, and it's not really worth it if you ask me. In the amount of time/cost/performance involved, it would be quicker/cheaper/better to design and build a better quality home mains amp.
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Old 29th January 2004, 03:36 PM   #3
kan3 is offline kan3  United States
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if you are looking for small amount of power from the amp...100-120wrms, then there are 13amp 14v Dc power supplies on ebay for $20 shipped

edit:

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=3171623386

looks like they don't give free shipping anymore, my model pegs alittle over 14v
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