Musical Design varies considerably in both level of sonics and price. If you found one with "Black Gate" caps, and modded all the way, it would be very transparent and neutral. They also cost more than one with standard caps.
The D-140 is no longer manufactured. Although I'm not familiar enough with the Bryston to answer your question, I would buy a D-140 with "Black Gates" today.
The D-140 is no longer manufactured. Although I'm not familiar enough with the Bryston to answer your question, I would buy a D-140 with "Black Gates" today.