Thanks Adrian, I contacted them, but haven't heard back since...
Meanwhile, I have opened the unit and must say: NICE!
Each band on it's own PCB plus seperate summing Boards, seperate switching Boards, seperate I/O Board.
ICs used:
~~/015 LF353N on Hi-Band
XC TL072CP on Hi-Mids
AC RC4558P on Low-Mids, Low and summing Board
AC LM301AP on summing Board
All socketed!
I get back to you with further Info.
Meanwhile: Any thoughts on Upgrades for those OP Amps (I only know the TL072)?
Regards, Niko