Anyone know anything about Mark Levinson MLC-1?

Just got one from my uncle who had it tucked in a drawer for 15 years or so. Mounting it this weekend!
This will be of interest:

-- Al
Tell us what you think about it. I use one on my OL1 fully modified by origin live on a lenco L75and i think it's a great cartridge but had not listened it against zyx...modern great cartridges.