Advice needed for amp design

gpond · 25th August 2006, 04:22 PM

I am building a project running a puredata sound program on a mac mini- the outputs are connected via firewire to the eight channels out on a presonus firepod. The speakers I am using are small: 1W 8ohm, and I need to build compact amps for each speaker. Can anyone suggest some designs? I know very little about amp design.

Thanks

Greg

Leolabs · 29th August 2006, 02:40 AM

try Philips's TDA7052

gpond · 29th August 2006, 03:55 PM

Thanks- I will give it a try.

greg

SpittinLLama · 29th August 2006, 05:30 PM

National Semiconductor has a ton (and I mean ton) of 1W/8ohm parts (their Boomer line) that run from 5V. You can simply use 3xAA batteries or even 4xAA if NiMH and run them from a little battery holder. They even have parts in the old SOIC package so you can easily put the sucker on a bread board and test it out first or use a socket. Just do a search there and you'll find all you ever wanted. I think they might get as high as 3W for a 4 ohm load but that is probably a 10% THD+N number so not really useable. Might want to check them out.

-SL

25th August 2006, 04:22 PM	#1
gpond diyAudio Member Join Date: Jul 2006	Advice needed for amp design I am building a project running a puredata sound program on a mac mini- the outputs are connected via firewire to the eight channels out on a presonus firepod. The speakers I am using are small: 1W 8ohm, and I need to build compact amps for each speaker. Can anyone suggest some designs? I know very little about amp design. Thanks Greg

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29th August 2006, 02:40 AM	#2
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	try Philips's TDA7052

29th August 2006, 03:55 PM	#3
gpond diyAudio Member Join Date: Jul 2006	Thanks- I will give it a try. greg

29th August 2006, 05:30 PM	#4
SpittinLLama diyAudio Member Join Date: Apr 2005 Location: In the Wild, Wild West	National Semiconductor has a ton (and I mean ton) of 1W/8ohm parts (their Boomer line) that run from 5V. You can simply use 3xAA batteries or even 4xAA if NiMH and run them from a little battery holder. They even have parts in the old SOIC package so you can easily put the sucker on a bread board and test it out first or use a socket. Just do a search there and you'll find all you ever wanted. I think they might get as high as 3W for a 4 ohm load but that is probably a 10% THD+N number so not really useable. Might want to check them out. -SL

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