Mods done were filling in all the thru holes, rebuilt all daughter cards, removed some caps in signal path, replaced all caps, some with Wimas, wima bypass caps on caps, replaced all ICs, Replaced daughter board pins, replaced transistors in mic pres, multicaps in E.Q.s,
Replaced 5534s on stereo busses with Jim Williams Hi-speed opamp boards, cleaned all boards. Vca's are the same ones TA101s. No longer dark and small.
The console sounds very big, clear, open, and punchy. Hi-end EQ is not sizzly and the bottom is not muddy. EQ can be cranked full and sound clear and transparent.
The console has a totally new sound. A lot of time and money but well worth it.