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Chip Amps Amplifiers based on integrated circuits

can a gainclone be used in a car?
can a gainclone be used in a car?
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Old 11th July 2003, 10:23 AM   #1
Hybrid fourdoor is offline Hybrid fourdoor  United States
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Default can a gainclone be used in a car?

This is a dumb question and I think I know the answer, I just like reassurance. Can you use a gainclone in a car stereo?
Just use a stepup transformer to turn 12V into whatever, or is there enough amperage in a car power system to use 12V?

This would be for main speakers, not Subwoofers. It seems like a easy way to add ample power to your car and not having a huge box that is flashy and cost a ton.

Heck you could even attach the gainclone (with how small they are) to the speaker itself and have nicely hidden fully powered system.
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Old 11th July 2003, 10:58 AM   #2
millwood is offline millwood  United States
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rather than using a step-up transformer (not directly on a DC source, right?), you can use step-up switching mode regulators. and it would be much simpler if you use the chip amp in single supply.
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Old 11th July 2003, 11:25 AM   #3
JOE DIRTŪ is offline JOE DIRTŪ  Canada
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alot of these chips were intentionaly designed for 12 volt applications and are quite suitable
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Old 11th July 2003, 01:50 PM   #4
gfiandy is offline gfiandy  United Kingdom
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Converting the 12V supply to a higher voltage is actually quite tricky as you need to use a switching supply of some sort. I'd recomend just using the lower power LM1875 and bridging it on the standard automotive voltage. Depends on how much power you want. This will give you a high quality amplifer but not a very powerfull one. Also bare in mind automotive power tends to be very noisy with high frequency noise so you may want to improve the power supply filtering over a standard gain clone.

Hope this helps, Andrew.
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Old 11th July 2003, 01:52 PM   #5
Matttcattt is offline Matttcattt  England
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my gainclone car amp will use 2 seperate car betteries to give +/-12v. my webpage is here: http://www.freewebs.com/matttcatttweb/index.htm
If it aint broke, don't fix it. If it is broke, fix it.
If you can't fix it, take it apart and see how it "worked".
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