Hi Robby
I don´t have a Tonelab but a Valvetronix AD120VT amplifier although I think this is similar to Tonelab and this is why I commented it here. Following that thread in Valvetronix site, I replaced four capacitors for .022 uF polypropilene film ones and got a huge change in sound (better) although I lost bass tones. I´ll keep experimenting with other caps.
BFN
Pancho


