DESC: The SR9600 is simply the best surround receiver we''ve ever offered. It surpasses the performance levels of even separate components in both sheer brawn and subtle sophistication. THX Ultra2 certification - and power output of 140 Watts RMS from each of its seven current-feedback amplifiers - means the SR9600 will recreate the sonic impact of dynamic movie soundtracks in the largest rooms. Intelligent cooling assures long term stability, even under the most demanding conditions. Analog preamp circuitry features wideband HDAM-SA2 modules. The oversized power supply includes a toroidal transformer and Marantz-designed storage capacitors for quick response to rapidly varying sources.