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Old 13th March 2010, 04:15 PM   #1
Boscoe is offline Boscoe  United Kingdom
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Default Can some one suggest me an amp please

I need a amp for the amplifier I'm making it needs to have 2 channels and i don't mind weather it's pre built or not. It needs to be about 30Wrms per channel and must run on 12Vdc. I don;t want anything from ebay i would like to buy it from a real shop and the price is as low as possible! Thanks
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Old 13th March 2010, 04:25 PM   #2
Puffin is offline Puffin  United Kingdom
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Probably a car amp would suit best.
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Old 14th March 2010, 09:37 AM   #3
tomchr is offline tomchr  United States
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You need an amp with a power supply that has a built-in boost converter to convert the 12 V to the roughly +/-22 V needed to output 30 W into 8 ohm (assuming that's your load impedance). I second the recommendation of a car amp.

~Tom
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Old 14th March 2010, 04:14 PM   #4
Boscoe is offline Boscoe  United Kingdom
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Thanks but now i think i'm going to try to make one from a kit. anyone got any ideas?
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Old 14th March 2010, 06:16 PM   #5
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Lots of old car radios out there. I've bought them for 50p. 4 * 20W is common but 4 * 40W is not uncommon. Some have Aux In, but it's fairly straightforward to find one of the signal traces inside and break into it. You can feed into the tape circuit if there is one and select it by putting an empty casette in there.

w
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