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royalmp 21st May 2012 03:09 PM

250W Simple Power Amp Project ??
Hi everyone,

I need to upgrade an aging Yamaha P2250 Power amp with something I can build myself. It is being used as a PA amp for a small church. I own an Adcom GFA-535 and absolutely love the sound, and am looking to build something like the equivalent of the beefier GFA-555.

Any suggestions??

I have the service manual with schmatics for the GFA-555 (mk i), and I am wondering about recreating a clone of it, as the circuitry is fairly straightforward. Etching pcbs is no problem for me.

Anyone have any comments?

Tekko 21st May 2012 03:16 PM

Cloning an amp is easy, but cloning the way it sounds is near impossible as you cannot get the exact same part the original used.

sgrossklass 21st May 2012 04:56 PM

On paper, the P2250 seems like a pretty decent amp at the very least. What's wrong with it?

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