We have been using a 16 channel Toft ATB console for a few years and to be honest I was never that impressed with it. The mic pres didn't sound that great, the master bus has a muddiness to it and the headphone amp was not very accurate, the only thing I really liked was the EQ. Enter Jim Williams...
I had heard another ATB console that he had worked on and was blown away
with the sound, I contacted him and had him rework the master bus.
This immediately opened up the sound, the low-end muddiness was gone and
the headphone amp was accurate. The preamps still were not doing it
for me so I contacted him again to get new preamp chips. After going
through the board and installing all the chips I was floored by the
difference in the sound. The pres are now super fast and articulate.