Klon Centaur 2 channel mod

[Fedorov113]

Hello folks!
I've done the 2 channel mod to klon: the second button that kills overdriven signal and takes clean pot out of the way. To kill dirty signal I simply disconnect OpAmp output from the circuit. However this solution produces quite "pop" sound, and I feel that there is a better way to do this. Any ideas on how to mute overdriven signal?
Thank you!

[antonis]

Please share with us some kind of schematic/drawing in which is clearly shown the point of disconnection..

[Fedorov113]

Here it is! Just breaking this connection.

[duck_arse]

maybe - permanently insert a large value resistor, like 1M, between "OP2" point and "OP1" point. then, when you want that signal, use your switch to short across that resistor, allowing full signal through. this way, your C9 won't be left hanging when the switch is open, and there should be no^* pop.


^* in theory.

[antonis]

If duckie's suggestion doesn't work, try to move the left leg of 1M resistor from OP2 to GND..

Or better, if you have poles availiable on your switch, try to ground OP1 at cut-off mode...

[slacker]

Another way to do it would be to leave everything after the op amp connected and make your switch connects lugs 1 and 2 of the "GAIN OD" pot, that's effectively the same as turning the gain all the way down and will kill the over drive signal.

[Fedorov113]

Another way to do it would be to leave everything after the op amp connected and make your switch connects lugs 1 and 2 of the "GAIN OD" pot, that's effectively the same as turning the gain all the way down and will kill the over drive signal.

Yeah, I've tried this solution, however it causes hiss when the gain is maxed.

[slacker]

You could try grounding the junction of C9 and R13. I'm guessing you can't just ground A1 like in bypass but have you tried that?

[Fedorov113]

You could try grounding the junction of C9 and R13. I'm guessing you can't just ground A1 like in bypass but have you tried that?

Seems like grounding the junction of C9 and R13 has worked! At least there is no popping sound from that part anymore. I'll listen closer to the overall sound tomorrow. I've also discovered, that my pot switching part produces super quite pop as well. I've tried adding capacitors from each side, but it had little to no effect. Any ideas? And thank you so much for your help!

[slacker]

You probably don't need to completely remove the pot, you can leave lug connected and just switch between the wiper and lug 1. That might reduce the pop.