Chu Moy amps?

chuck55 · 01:14 AM

Cmoyamps based on a single Burr-Brown OPA134 opamp in a non-inverting configuration.
Any good?

How much power do they produce/ Can they drive a 3" single driver speaker?

Chu Moy

Here's the pic

or one of these?

wwenze · 19th August 2010, 03:58 AM

Quick answer - A little/ No

gszekeres1 · 19th August 2010, 03:10 PM

The amp is limited to about 100ma. I think. 9 volt battery 2.3 watts. I
think the 100 ma. will toggle in first. You can try adding parallel amps
for more current. You can also double or quadruple the voltage.

ic4ru5 · 21st August 2010, 06:02 PM

I dont recommend C'moys configuration. If you want digital signal amplifier then seek for 12v car battery + diy speaker with amp build in. Ive seen device like this and I was impressed by power and mobility of it. Something smaller just doesnt have any point to build.
As Cmoy owner I can say that is very good headphone amplifier.

19th August 2010, 01:04 AM	#1
chuck55 diyAudio Member Join Date: Dec 2003 Location: New England	Chu Moy amps? Cmoyamps based on a single Burr-Brown OPA134 opamp in a non-inverting configuration. Any good? How much power do they produce/ Can they drive a 3" single driver speaker? Chu Moy Here's the pic or one of these? Last edited by chuck55; 19th August 2010 at 01:14 AM.

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19th August 2010, 03:58 AM	#2
wwenze diyAudio Member Join Date: Mar 2008	Quick answer - A little/ No

19th August 2010, 03:10 PM	#3
gszekeres1 diyAudio Member Join Date: Aug 2010 Location: near Pittsburgh	The amp is limited to about 100ma. I think. 9 volt battery 2.3 watts. I think the 100 ma. will toggle in first. You can try adding parallel amps for more current. You can also double or quadruple the voltage.

21st August 2010, 06:02 PM	#4
ic4ru5 diyAudio Member Join Date: May 2010	I dont recommend C'moys configuration. If you want digital signal amplifier then seek for 12v car battery + diy speaker with amp build in. Ive seen device like this and I was impressed by power and mobility of it. Something smaller just doesnt have any point to build. As Cmoy owner I can say that is very good headphone amplifier.

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