I no longer need a current source amp so thought I would alter my diy F2J to get some damping factor, make it a sort of ZenJ. I don't want a lot of hacks, just short cuts not track cuts. The attached altered circuit diagram shows what I am intending. The revised input resistor values should get me into the ballpark of symmetrical clipping, and I am OK with the resultant gain and input impedance. Should I do anything else?
Many thanks in advance.
Many thanks in advance.
Attachments
I have implemented the changes. I measured the output impedance to be 1.6 ohms for a damping factor of about 5. Gain is down slightly to 13dB. I am pleased with how it's sounding.
FWIW, I did a quick FFT with my sound card test setup at 1W before and after the changes for comparison.
Cheers
FWIW, I did a quick FFT with my sound card test setup at 1W before and after the changes for comparison.
Cheers
