[Bill Epstein]

Actually. stereo's fine but when I toggle to Mono, the gain drops off dramatically and sounds like coming from the bottom of a well

Maybe I shoulda jumpered this version, too, but I have quite a few really good mono records now.

Maybe one of the board traces is loose?

[reuben]

Maybe your left and right signals are out of phase. Have you tried reversing the leads on one of them?

Regards,
Tom

[tubesforever]

Bill that's weird.  In my C2 the mono sound a little more grounded in sonics and the stereo sounds a little more thin and airey. 

I hope you find what's reversing your reality!  A parallel universe? 

Best of luck working the problem Bill!

[Bill Epstein]

Tubes, as usual, you're right about the parallel universe:lol:

When i reversed the leads to the Cinemags, the mono came back but the stereo went out, or was it TOWA?

It gets better! When I switched from the SME with a grounding wire to the Cherry arm (no metal, no ground) the Cinemags went from silent to HMMMMMM! However......if I push down on the armboard slightly, the humm diminishes by about 80%