Kevin O'Connor master volume mod?

[Mark]

I was wondering what the concensus is on the KOC mod where he puts a 100K resistor off the wiper of the 1M pot and into the phase inverter.

It was popular when he came out with it, but I notice it has been omitted from Dumble ODS amps.

What are your thoughts on the matter?

Thanks for your time and assistance.

[Roe]

It depends on the circuit. some high gain amps benefit from a resistor, preventing blocking distortion in the phase inverter. others do not need it

[Mark]

The basis of KOC recommendation was bass and mids roll off. Without the resistor the amp sounds tinny. I vaguely remember encountering something like this in the past. I'll try looking for it in one of his books.

[frankdrebin]

I won't go on theory, I say just try it, I think you'll get the reality.

[roberto]

With concertina phase inverters you can increase it as much as you want, but with LTP you have to compromise with the miller effect of a stage that has gain (so roll off of highs).
You will probably find a good compromise with something between 1/10 and 1/5 of the pot value.