[uhcmos1]

GAIN:3-5X
POWER SUPPLY:+/-12V
ALPS POT WITH MOTO:100KA

 

[NelsonVandal]

Sorry for double posting. A cat walked over the keyboard.

 

[NelsonVandal]

Nice work. Why make it more complicated than you have to. With the right opamp, power section and grounding, this will sound as good as any 1 000 $ high end amp. Some opamps might need a small cap in parallel with R3/R4, and some might sound better with a resistor in series with the output. 1 k input resistor might be a little high, but I doubt you'll hear much difference. If high speed opamps are used, small ceramic caps from as close to the opamps power pins to ground might be needed.

 

[uhcmos1]

hi nelson
you can put small caps on the R3R4 directly if needed ,because it is a tiny pcb.
also power small caps.
1k consists of LPF with the small cap behind it.

 

[cobaltmute]

It's a cmoy.

 

[Zigis]

Cmoy with LPF and motorized ALPS

 

[uhcmos1]

hi