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MZ Series


The MZ-140Q features four individual 140 Watt RMS Class D power amplifiers and each amplifier can be configured to run 70/100 Volt or at minimum 4Ohm impedance. Each amplifier is a zone, and there are front panel controls for volume, two band eq and source select per zone. There are five flexible input channels, each with a front panel mounted gain trim control. Dual combi microphone inputs allow two individual mics to be connected simultaneously both with auto or manual priority modes. Built in a full size 1U rack case, the unit is extremely robust with easily operable controls. Front 'scribble' strips allow the installer to easily identify each zone and input identification. The perfect installation amplifier for retail, leisure, café, bars and halls.

  • 4 Zone amplifier
  • 4x 140 Watts RMS power output
  • Supports 70/100V or min 4 Ohm impedance speaker outputs (configurable per zone)
  • 5 comprehensive audio input channels
  • Independent bass and treble EQ adjustment on each zone
  • Compact space saving 1U design (rack mountable)
  • Universal ~100-240V worldwide operation
  • Remote volume control capability using HH MZ-C2 module and standard ethernet cable


  • System Type
    Zone power amplifier with input routing
  • Inputs
    CH1/2 balanced XLR/6.3mm jack combi socket, CH3/4 L&R balanced 3.5mm Euroblock, CH5 3.5mm stereo aux and stereo RCA
  • Outputs
    4 zone power amp outputs via 5.08mm Euroblock
  • Indicators
    Power/Standby, Input signal present and peak LEDs, Output signal present and clip LEDs
  • Frequency Response
    20-20kHz ±0.1dBu (LoZ Mode), 80-20kHz ±0.1dBu (HiZ Mode)
  • THD+N
    <0.01% @0dBu in, mid volume; <0.008% @+6dBu in, maximum volume
  • S/N
  • Noise Floor
    < -70dBu (unmuted), < -110dBu (muted)
  • Controls
    Adjustable gain control for each input; source select and volume control for all zones
  • Crosstalk
    < -95dB between channels, maximum volume
  • Emergency Override
    Balanced 3.5mm Euroblock connector, overriding the normal inputs
  • Lineout
    3.5mm Euroblock line level output that follows zone 1, useful for system expansion
  • Other Controls
    CH1/2 mic/line level and phantom power; high and low impedance settings for all zones; power saving mode and front panel lock
  • DSP
    ORIGIN advanced multicore platform
  • EQ
    Each zone has bass and treble shelving control with a low pass filter mode; switchable high pass filter on CH1/2
  • Power Consumption
    27W Idle, 300W Typical, 450W Max, 0.4W Standby
  • Unit Dimensions (Hwd)
    44 x 483 x 417 mm (1.7" x 19" x 16.4")
  • Unit Weight
    4.5kg, 9.9lbs
  • Carton Dimensions (Hwd)
    150 x 630 x 510 mm (5.9" x 24.8" x 20.1")
  • Packed Weight
    7.1kg, 15.7lbs
  • Accessories
    Rack mounting kit, Euroblock connectors (4x 3.5mm 3 way, 2x 3.5mm 5 way, 2x5.08mm 6 way), IEC mains lead, HH user manual download card

MZ Series Install Zone Amplifiers, Pre-amp & Controllers

The HH MZ Series is a range of high-performance professional install zone amplifiers, pre-amplifier, and wall controllers. Powered by our ORIGIN multi core platform, developed by the HH Electronics team in the UK. Offering industry leading audio performance and features, the HH MZ Series are the perfect tools for commercial system integrators in a wide variety of use cases.

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