We are a Bryston dealer in Hamilton, Ontario, Canada. Simply using the amplifiers stand-alone, I would have to say that the Bryston 7-B ST (in series mode) is a much better sounding amplifier than the 4-B ST. Personally, this is striking since it appears that the circuit topology is very similar. I have not confirmed the variations/similarities between the two from Bryston, but these are my consistent listening observations.
peter jasz (managing director --AUDIO)
peter jasz (managing director --AUDIO)