Parasound ZM450

Power Output RMS, All Channels Driven (20 Hz - 20 kHz)  50 watts x 4 @ 8?  90 watts x 4 @ 4? or 2?  160 watts x 2 @ 8? (Bridged)  200 watts x 2 @ 4? (Bridged) Frequency Response  10 Hz - 60 kHz, +0/-3 dB Total Harmonic Distortion  < 0.05% at typical listening levels  < 1.0% at full power Interchannel Crosstalk  70 dB at 20 kHz Input Sensitivity:  700mv = Full output (50 Watts @ 8 ?)  Total Gain = 29 dB (Level controls set to Maximum) S/N Ratio  > 112 dB, input shorted, IHF A-weighted DC Trigger Requirements  +9 Vdc to +12 Vdc, 2 mA Audio Trigger Requirements  2 mV Audio Signal AC Power Requirement:  500 Watts Maximum  30 Watts Typical  15 Watts Idle (All Zones on)  7.5 Watts Idle (One Zone on)  0.9 Watts Standby  110-130 VAC 60 Hz or 220-255 VAC 50 Hz  Note: AC mains voltage is set only by qualified electronics technician. Dimensions:  Width: 8.5" (220 mm)  Depth: 10" (254 mm)  Height, with feet: 2" (51 mm)  Height, without feet: 1.75" (45 mm), 1U Weight:  Net: 4.5 lbs (2.0kg)  Shipping: 7.5 lbs (3.4kg)