Parasound® ZoneMaster™ Universal 2 Channel Amplifier

• 350 watts x 2 @ 8 Ω
• 600 watts x 2 @ 4 Ω
• 2 Ω stable for driving multiple speaker pairs
• Two pairs of speaker outputs with A/B buttons
• Lockout switch on rear panel to disable A/B buttons
• High pass filter, switchable for 30Hz or 80Hz
• Automatic on/off by 12V trigger w/ looping output
• Automatic on/off by audio signal
• Speaker level input enables integration with systems lacking preamp output jacks
• Parasound designed class AB input stage w/ premium Class D power stage
• Subwoofer mode for driving multiple in-wall subs without the need for an external crossover
• Mono mode combines L and R for single speaker applications
• Mono full range preamp output
• Subwoofer 80Hz, 24dB/oct. low pass preamp output
• Looping left and right output jacks
• Left and right input level controls
• Efficient, low heat design
• Short circuit and overload protection
• 0.5 watt standby power consumption meets EU and Energy Star requirements
• 2U rack mounting hardware is included in box

Power Output: RMS, Both Channels Driven (20 Hz – 20 kHz)

• 350 watts x 2 @ 8 Ω
• 600 watts x 2 @ 4 Ω or 2 Ω

Minimum Speaker Impedance (Output A+B)

• Stereo or Mono Mode: 2 Ω
• Subwoofer Mode: 4 Ω
• Note: Operation at these minimum impedances might require additional ventilation.

Frequency Response

• 10 Hz – 70 kHz, +0/-3 dB
• 20 Hz – 20 kHz, +0/-0.8 dB

Total Harmonic Distortion

• < 0.05 % at typical listening levels
• < 0.9 % at full power

Inter-channel Crosstalk

• 70 dB at 20 kHz

Input Sensitivity

• 2 Volts = Full output (350 Watts @ 8 Ω)
• Total gain = 29 dB (Level controls set to Maximum)

S/N Ratio

• > 100 dB, input shorted, unweighted
• > 114 dB, input shorted, IHF A-weighted

High and Low Pass Crossovers

• Sub Mode and Sub out jack: 80 Hz, 24 dB per octave
• High Pass Filter: 30 Hz or 80 Hz, 12 dB per octave

DC Trigger Requirements

• +9 Vdc to +12 Vdc, 5 mA

Audio Trigger Requirements

• 2 mV audio signal (8-15 minutes turn off delay)

AC Power Requirement

• 1500 Watts maximum
• 100 Watts typical (music playing, typical listening level)
• 30 Watts idle (no music playing)
• 0.5 Watts in standby
• 110-240 VAC 50/60 Hz

Dimensions

• Depth without cables: 14.5”
• Height without feet: 3.5”