The C 375BEE is far more than a bigger C 355BEE in fact, it is much closer in spec to the M3 Integrated Amplifier from NAD s high end Masters Series. It also incorporates an updated version of NAD s "Building Block" concept to make the addition of the PP375 phono module or the MDC DAC USB Digital Analogue Converter and other affordable future upgrades possible. Attention to the most minute detail is evident everywhere, from the heavy gauge steel chassis to the sophisticated power supplies and copper buss bars channeling almost absurd amounts of current to the custom gold plated speaker binding posts The C 375BEE boasts many upgrades and refinements taken directly from the highly acclaimed NAD Masters Series M3 Amplifier. These include application of Bjørn Erik Edvardsen s innovative and patented Distortion Canceling Circuit in the output stage and BEE Clamp in the power supply. An improved tone control circuit and revised PCB layout has reduced distortion and noise to unprecedented levels. Taken together, these improvements mark a sharp upturn in performance that simply must be heard, to be fully appreciated!