MFA Luminescence MC Reference preamp


I'm curious about this preamp. Any opinion on this very unique octal tube preamp would be wonderful.
mikelakers

Showing 1 response by kbk

The "Venusian' is, as far as I know, the origins of the Lumi. I apparently bought a earlier near proto unit that was hand wired (as if any of them wern't!)

It uses a 40-45kb dual mono solid state PS box, which is fully stuffed. Four transformers, about 5 chokes.

A separate box for the phono section. It is fully stuffed. With boards and binding posts, with "Randall Research" wire. The same wire that was in the original Mod Squad line Drive. It uses 4 5691's, and two 6em7's. It has a second set of RCA jacks to load the given cartridge separately from the stock 47k ohms.

The upper, line stage box uses 2 6SN7's and 2 6DN7's. And a pair of 12AU7's for tape line out buffers. Everything but the volume control is activated as single channels. Two overall 'gain steppers (5 steps) and an overall ladder discrete type 23 step volume control.

Three Chassis total.

It rocks! As you might imagine.

Here comes the painful part: I got mine off Ebay for $106.05. Fuuken A! It was so badly represented, that no-one recognized it. But I'd recognize a Bruce Moore circuit and wiring..anywhere. I knew what it was. Seven sweaty days of waiting later..it was mine. I went looking for 'broken tube amps'..and stumbled across it.

one last point: Scott Frankland (the F in MFA) still works on these, for those who want them modded out properly.