Parasound® ZoneMaster™ Universal 4 Channel 8 Speaker Amplifier

• Universal amplifier for applications from 50 to 200 watts
• 4 speaker connections (not enough room for additional Phoenix connectors on ZM450 rear panel)
• High current for stable operation at 2 Ohms
• Channel pairs are bridgeable for up to 200 watts @ 4 Ohms
• Class AB input stage plus premium Class D power stage
• Independent audio sensing triggers, one for each zone
• 2 Independent 12 volt trigger inputs, one for each zone
• Looping 12 volt trigger outputs for each zone
• Master 12 volt trigger input to turn all zones on-off
• Speaker level input for expanding systems w/out pre out jacks
• Bus loop output jacks for passing audio to another amp
• Mono mode combines L and R for single speaker applications
• Separate level controls for all four channels
• Detachable speaker connectors accept up to 12 gauge wire
• Short circuit and overheat protection with front panel indicators
• 0.9 watt standby power consumption meets Energy Star & EU specs
• Compact 1u, 1/2 width chassis size
• Does NOT have A/B outputs (no room on the rear panel for connectors) but is 2 Ohm stable

Power Output: RMS, All Channels Driven (20 Hz - 20 kHz)

• 50 watts x 4 @ 8Ω
• 90 watts x 4 @ 4Ω or 2Ω
• 160 watts x 2 @ 8Ω (Bridged)
• 200 watts x 2 @ 4Ω (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 Ω)
• 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.

Dimension

• Height without feet: 1.75”