an update ... I sourced a Torus TOT Max and a BDA-3,
completely tore my system down, rearranged, plugged the following into the Torus
1) Bryston 4B (driving Bryston A3s through 6' Bryston speaker cables)
2) Bryston 11B
3) Bryston BDA-3
4) Bryston BDP-2
5) Cambridge 851C (DAC/)CD
6) SVS SB-2000 sub
7) Magnum Dynalab FT101

Panasonic Plasma TV
OMG!!!! The low level buzz I was hearing over the A3s when no signal was being run is gone.
When my 4B was repaired last year I inquired about that buzz and it was suggested
that the block transformers could be the source. It is highly satisfying to know that
my old 4B is driving so cleanly. The BDA-3 is a whole other revelation in sound

The acoustic room treatment is coming next week from GIK: a banner year for massive
improvements in my system.