Passive pre with Bryston 7B ST??


I am wondering whether the Bryston monoblocks are suitable for passive attenuators/pre while the Bryston preamps (are said) to be the weak link of this pre/power combo. As the Brystons are pretty well known I'd gues that someone would have tried it with a passive pre (FT Audio LW1 for example)

The Brystons have a high sensitivity (0,8 volt) and a high input impendance. My cd-player (Musical Fidelity Nuvista 3D) has a low impendance 2 volt output according to the red book standard.

Any comments?
nanning

Showing 1 response by mikem

I have 2 passive amps, the placette and the EVS attenuators.
I also have had the BAT, Thor TA-1000, Cary slp-50 and now the blue circle BC-3 Galatea line stage.
The passives need to be matched with the right source and amps. You have to drive your amp to life. I could not get either passive to drive my Bel Canto SET40 to my liking. There was volume, but no life. Yes it had bass too, but it was missing something. Paired with the Evo, the sound was very detailed but on the lean and sterile side. Very detailed, but to the point of distraction.
The way to go is with a quality active linestage. The BC BC-3 did it for me. The stepped attenuators, simple circuitry and great design make music. The sound is detailed yet doesn't distract. The bloom and presence are all there.
Great pace and it sounds alive. A drum kick is felt, not just heard. Vocals have air, depth and a pleasant natural presence.
There is no right or wrong in what you prefer. Everything matters in the audio chain. Keep things as simple as possible when dealing with the source signal. An active linestage is a great way to manage the type of sound you are looking for.
Look for a simple design in an active linestage. The Cary SLP-50 is a good eample. The BC-3 is more refined with a very well designed power supply. Don't ignore the volume control. You would be amazed how many $8K preamps use a $25 volume control. Go with a stepped attenuator setup if possible.
mike