I love my Yamy 765A - all except the pots, knobs, a pre-amp. Set-screw knobs on spit shaft pots make no sense, IMO, and the electronics are noisy unless pan, bass and treble are all near center. I'm seriously looking at replacing the pre with an Audere Classic 4-band. Four knobs - volume, balance, high-mid/treble (split), and low-mid/bass (split) - should fit with no holes to drill. I even like the look of the Audere gold knobs. Does anyone have any experience with this combination or something close? Other recommendations? I (try to) play blues/rock and a little jazz - nearly aways fingers, maybe a little OD. Thanks much.