I think the Bogen DB-20DF came close. Plus it had the adjustment on the real panel for varying the damping factor, allowing you to get close to ideal coupling to the speaker. Sweet sound for its day! Regards, Mark Durenberger -------------------------------------------------- From: "Tom Fine" <[log in to unmask]> > None of them except the McIntosh and maybe that Heathkit mono preamp have > the ability to dial in all the pre-RIAA LP curves that were being used. > There were at least 10 different curves, if memory serves me correctly. I > think some of the British higher-end preamps also had the ability to dial > in many combos of turnover and rolloff.