The Sony TA-N9000ES amplifier provides over 115 watts RMS per channel for powerful and efficient audio quality. With a copper-plated chasis, this Sony amplifier is very durable and rugged. Although being rugged, this Sony 5 channel amplifier has a smooth faceplate with great controls. While providing so much power, the Sony TA-N9000ES has ample heatsinking capability that keeps it cool throughout its operation. To protect the power supply, this Sony 5 channel amplifier has a copper shield. The five amplifiers come with special output transistors that decrease the resonance of the unit. Moreover, this Sony amplifier has a short-signal, single-point earthing system that reduces distortion and simplifies the PWB design.