the amp has had a bench test and cleaning. It sounds amazing.
"The 3B NRB uses Bryston's proprietary Quad-Complementary output section, which improves linearity to a new standard of accuracy, while virtually eliminating aggressive higher harmonic distortion products. From input to output, all of the circuitry in the NRB series of amps has been optimized for the musical amplification possible, with dual power supplies to provide precise and focused imaging." -
