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Cutting Edge Electronics since 1982
phone 918-495-0586
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ZoneMaster 2 Universal 2 Channel 4 Speaker Amplifier with Sub Crossover


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  • 120 watts x2 @ 8
  • 150 watts x2 @ 4 or 2
  • 4 speaker connections (A and B outputs for both channels)
  • High current for stable operation at 2 Ohms
  • Class AB input stage plus premium Class D power stage
  • Audio sensing auto-on trigger
  • 12 volt auto-on trigger input
  • Looping 12 volt trigger output
  • Speaker level input for expanding systems w/out pre out jacks
  • Looping output to connect additional amplifiers
  • Mono mode combines L and R for single speaker applications
  • Separate level controls for both channels
  • Detachable speaker connectors accept up to 12 gauge wire
  • Short circuit and overheat protection with front panel indicators
  • 0.5 watt standby power consumption meets Energy Star & EU specs
ZoneMaster 2 Specific Features
  • Compact 1u, 1/2 width chassis size
  • "ZRK" Rack mount kit sold separately (click to view)
  • Full Range Mono RCA Output
  • 80Hz low pass Mono RCA output (for sub)
  • Built in 80Hz low pass filter in bridged mode for driving in-wall/in-ceiling woofers or passive sub(s)

Power Output - RMS, Both Channels Driven (20 Hz - 20 kHz) 120 watts x 2 @ 8
150 watts x 2 @ 4 or 2
Minimum Speaker Impedance: A+B Outputs of a Single Channel: 2

Note: Continuous operation at this minimum impedance might require additional ventilation for the amplifier.
Frequency Response: 20 Hz - 20 kHz, +0/-0.25 dB
5 Hz - 50 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 Interchannel Crosstalk: 70 dB at 20 kHz
Total Gain: 29 dB (Level controls set to Maximum) Total Gain: 29 dB (Level controls set to Maximum)
S/N Ratio: >112 dB, input shorted, IHF A-weighted S/N Ratio: >112 dB, input shorted, IHF A-weighted
DC Trigger Requirements: +9 Vdc to +12 Vdc, 5 mA DC Trigger Requirements: +9 Vdc to +12 Vdc, 5 mA
Audio Trigger Requirements: 2 mV audio signal Audio Trigger Requirements: 2 mV audio signal
Low Pass Crossover: 80 Hz, 18 dB per octave Low Pass Crossover: 80 Hz, 18 dB per octave
AC Power Requirement: 300 Watts maximum
30 Watts typical (music playing)
15 Watts idle (no music playing)
0.5 Watts in standby
100-250 VAC 50/60 Hz (automatic)
Dimensions: Width: 8.5" (220 mm)
Depth: 10" (254 mm)
Depth: 12" (305 mm) with AC cord and cables connected
Height, with feet: 2" (51 mm)
Height, without feet: 1.75" (45 mm), 1U
Weight: Net: 4.3 lbs. (2.0kg)
Shipping: 7.3 lbs. (3.3 kg)

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Electronics can be large, heavy, and expensive and you probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Questions or Comments?
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