Can some one suggest me an amp please

Boscoe · 13th March 2010, 04:15 PM

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

Puffin · 13th March 2010, 04:25 PM

Probably a car amp would suit best.

tomchr · 14th March 2010, 09:37 AM

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

Boscoe · 14th March 2010, 04:14 PM

Thanks but now i think i'm going to try to make one from a kit. anyone got any ideas?

wakibaki · 14th March 2010, 06:16 PM

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

13th March 2010, 04:15 PM	#1
Boscoe diyAudio Member Join Date: Feb 2010 Location: England	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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13th March 2010, 04:25 PM	#2
Puffin diyAudio Member Join Date: Feb 2006 Location: U.K	Probably a car amp would suit best.

14th March 2010, 09:37 AM	#3
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	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

14th March 2010, 04:14 PM	#4
Boscoe diyAudio Member Join Date: Feb 2010 Location: England	Thanks but now i think i'm going to try to make one from a kit. anyone got any ideas?

14th March 2010, 06:16 PM	#5
wakibaki Banned Join Date: Jan 2008 Blog Entries: 2	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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