Page 9
Performance Specifications
Analog inputs:
One stereo pair of unbalanced (RCA) inputs.
Analog (line level) outputs:
One stereo pair of unbalanced (RCA) outputs.
Speaker outputs:
8 pairs of full-sized five-way binding posts
(one pair for each channel in each zone; Channel 1, zones 1-4 and Channel 2, zones 1-4).
Minimum recommended load impedance:
ANY
combination that totals 2 ohms or higher per channel.
Power output:
95 watts RMS per channel (x2); into 8 ohms.
150 watts RMS per channel (x2); into 4 ohms.
270 watts RMS per channel (x2); into 2 ohms.
Input sensitivity (for full output):
800 mV
S/N ratio:
> 95 dB (A-weighted).
Frequency response:
20 Hz to 20 kHz + / - 0.02 dB at 1 watt (- 1.5 dB at 80 kHz).
Trigger and control:
Trigger Input: 5 - 20 VAC or VDC.
Protection:
The 4Z-75 is protected against excessive operating temperature, shorted speaker connections,
ground faults, and other common fault conditions. If a fault occurs, the 4Z-75 will automatically
power down and the front panel Standby LED will flash red. To reset the protection, turn the 4Z-75
Off and then On again using the On / Off button or the rear panel power switch after the fault has
been removed.
