This unit is manufactured by Lexicon for JBL and is essentially a Lexicon MC-12B with a black face instead of silver. It is fully functional and just back from Lexicon where it was cleaned and calibrated. It has v3.11 software installed. This is the fully balanced unit. It is NOT the SDP-40 HD.
I have a backlit Lexicon remote that works perfectly with it. This is NOT the JBL remote but it is better in my opinion. I do not have the original manuals.