Most multi-channel amplifiers compromise performance for channel count. Every multi-channel Bryston amplifier has fully independent power supplies for each channel. On the 9B³, 6BSST², and 21B³, this includes separate transformers for each channel as well. Think of them as multi-channel monoblocks.
Color: Black or silver, Rack Mount is always PRO 19” Black, no PRO 21B³
Size: 17” or 19” wide. 19” wide dress panels include handles
LED: Green is standard, blue by special order.