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Parasound® ZoneMaster™ Universal 4 Channel 8 Speaker Amplifier

Model #: ZoneMaster 450
136695
Parasound
At a Glance

Parasound® ZoneMaster™ Universal 4 Channel 8 Speaker Amplifier with independent audio sensing triggers and separate level controls

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Get to know this product.

  • 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”
Useful Documents
Specifications

Connections

Analog Audio(RCA) Output:1

Specifications

Power On Consumption (watts):30
Power Off Consumption (watts):0.9
Signal to Noise Ratio:112 dB
Watts RMS per Channel (4-ohms):90
Watts RMS per Channel (8-ohms):50

Misc. Specs

Depth (in.)10
Height (in.)2
Width (in.)8.5
Channels4
Analog Audio(RCA) Input2
Product Weight (lbs.)4.5
WarningProposition 65 Warning for California Residents