McGregor Z4Z Amp - Front
McGregor Z4Z Amp - Front
McGregor Z4Z Amp - Rear

McGregor Z4Z Four Zone Mixer Amplifier

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McGregor Z4Z Four Zone Mixer Amplifier




  • Mic inputs – Balanced or unbalanced 3k3 – 5mV
  • Line inputs – Unbalanced >22k – 200mV
  • Line output – Unbalanced < 10k – 775mV (0dB)
  • Headroom – +22dB. PPI’s active @ +19dB
  • Low – +/- 15dB @ 50Hz, shelved
  • High – +/- 15dB @ 12kHz, shelved


  • Power Output R.M.S. – As stated above
  • @ 1KHz into 4 OHMS – 70 % into 8 ohms
  • Frequency Response – 20 Hz – 25 kHz +/-0.5dB
  • T.H.D.@ rated power – <0.02% @ 1 kHz
  • Signal to noise ratio – Better than 100 dB
  • Channel Separation – Better than 60 dB
  • Thermal Protection – 90 deg C
  • D/C Protection – +/-32V
  • Clip Limiter – Internal, off to max required SPL
  • Input Sensitivity – 775 mV / 0dBu
  • Input Impedance – 10K + 10K
  • Soft start – All models
  • Damping Factor – Better than 400
  • Slew Rate – 40V/uS
  • Mains Inrush Limiting – 500 + 500 W upwards
  • Mains Input Power – 230V +/-10% 50-60Hz



  • Z4Z-400 4 X 100W DIMENSIONS:- 483(W) X 290 (D) X 89 (H) - 13.0Kg. 
  • Z4Z-1000 4 X 250W DIMENSIONS:- 483(W) X 290 (D) X 89 (H) - 15.0Kg.
Satisfaction Guaranteed
Return your in-wall, garden or ceiling speakers within 30 Days for a no-quibble refund or replacement.
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Helpdesk Software


McGregor Z4Z Four Zone Mixer Amplifiers enable mic and music switching into four different zones. The four stereo line inputs can be sent to any zone as can the mic input. Internally pre set voice override is available on all zones. Fire alarm music mute and remote volume control with led status, is standard on all four zones. Amplifiers can be interconnected to expand a system to 8 or more zones.

  • Two Low Z mic inputs, balanced or unbalanced 
  • Mic channel has Volume, Bass, Treble, PPI led’s 
  • Mic vox (internally adjustable) with Vox active leds 
  • Four zones with four stereo line inputs (phono sockets) and rear mounted input trim presets. 
  • Four interlocking stereo line input selector switches 
  • Bass and Treble presets on all four zones 
  • Zone 1- 4 have mic on / off selector switches with led indicator. 
  • Fire alarm music mute on all zones leaves mic active 
  • Separate Master, Low, Hi and remote volume controls for all zones 
  • Line out, mic out, music out, phono sockets and additional mic input, rear mounted. 
  • Four, 5 segment led displays monitor all zone output levels 
  • Active clip limiter with max SPL facility on all four zones 
  • Speakon sockets for all loudspeaker connections 
  • Fan cooled with low noise proportional speed fan 
  • Thermal Trip, DC protection on all zones

McGregor Warranty:
McGregor Electronics carry a 2 year manufacturers Warranty.

We are authorised McGregor retailers. Brand new and complete with the full warranty.

McGregor Z4Z Four Zone Mixer Amplifier Product review

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