I agree, and of course use a line stage preamp. As we all know, external passive controls that use an interconnect cable have that evil capacitance.
I did a little calculating, and with 4 volts rms musical signal, using a 100k ohm volume control,
the signal current through the pot is only 40 ua (microamps, or millionths of an amp); not much.
With 4 volt rms musical signal, 10k pot, 400 ua, or 0,4 ma (milliamp) through the pot; again not much.
10k is also about as low a resistance load as one can use with capacitive output preamplifiers as bass
response starts or is already dropping.
It is imperative to minimize capacitance in this signal path. With an input volume pot in the pre or the
amp, the capacitance is basically, Miller capacitance, with a smattering of input and stray capacitance.
cheers
steve