This Monoblock Power Amplifier features fully balanced input to output, ensuring a noise and distortion-free performance. The hand-picked components have been carefully selected through hours of listening tests to deliver the best sound. The twin toroidal transformers provide a huge reserve of power for consistent tonality. With Cambridge Audio's proprietary Class XA Amplification, there is no audible crossover distortion. For the perfect system, pair two Edge Ms with the Edge NQ.