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Old 26th June 2002, 04:14 PM   #1
Freddie is offline Freddie  Sweden
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Location: Sweden
Default Modified ESP 3A amp.

I need a cheap/simple amp for biamping purposes. Since I already have two 500VA 2*38V toriod transformers I wan't to use them. But this will create +/-50V a little bit too high voltage for the ESP3A amp, I will use 4 ohm speakers.

So I did some changes to the circuit, but I'm not 100% sure that it will work OK. I know the outputstage could be smaller, but I like when things are a bit oversized.

Suggestions?, Comments?

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Old 26th June 2002, 05:04 PM   #2
sonnya is offline sonnya  Denmark
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Turn up your spice simulator and check the bodeplot for phase margin with ~ 8Ohm||100nF load.

Hopefully your modified amp do not turn more than 160degress. Maybe check the old design too. If they are identical ... Nearly identical i would build

Sonny - See Jocko .. i made a post!!!
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