I would love a well-executed bass and treble control for my Connie-J PV-11. My purpose is simply to make bad recordings more tolerable. I do not restrict myself to audiophile recordings - I like what I like. But, as my system has evolved, and become more resolving, listening to poorly recorded CDs has become more of a challenge (even as well-recorded albums have become more pleasureable). Presently, I have a Behringer T-1951 parametric EQ in one tape loop. It is wonderfully flexible (and it has tubes!), but a recent speaker upgrade has exposed the T-1951 as much less than transparent. I like my PV-11 a lot. Preamp options with tubes and balance (which I need for several good reasons), bass & treble controls are either used, McIntosh, or Van Alstine. I am not sure that anything other than the top-line Macs would be a real step up from the C-J, and I can't afford that. I am pondering having the C-J modded, which means a long-term committment to it, or looking at something like a used Mac C220. I must have a full-function preamp, with tape loops and phono section (at least MM). I wouldn't mind a remote, either. I would love to hear everyone's thoughts on this. Thanks to the O.P. for bringing up an important, if polarizing, topic.