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Allen & Heath GR05 1u Rack Mount 5 In 4 Out Zone Mixer

Product Code: ALGR05/X
Manufacturer: Allen & Heath

Free mainland UK shipping available for this product

Our Price £549.99INC

Available within 2-5 working days

GR05 is a 5-input, 4-output analogue zone mixer for sound installations requiring 2 mic and 3 stereo line to up to 4 mono or 2 stereo zones. Internal jumpers allow custom configuration protected for day-to-day operation by non-technical staff. Zone volume may be remotely controlled.

GR05_3Quarter_Main The GR05 has 2 microphone inputs and 3 stereo line inputs.

These can be assigned to 4 zone outputs configurable in mono or stereo pairs and controlled by front panel or remote level controls. GR05_Back_Main Ducking, EQ and muting can be configured.

Further inputs and outputs are possible using the expander system. GR05-ST version also available, with XLRs replaced by Euroblock (Phoenix) connectors.

Key Features

  • 2 mic inputs
  • 3 stereo inputs
  • 4 XLR outputs
  • Routing Matrix
  • Remote Control
  • Ducking
  • Expandable
  • Lock out system
  • Internal power supply


Output level control High performance VCA system Front panel or remote DC control, assignable mute
Ducking Internal triggered by Mic1 and/or Mic2 External triggered by opto-isolated remote input Selectable -10dB, -20dB, mute, fast, slow
Routing Assignable 9 x 4 x 2 crosspoint matrix OFF, DIRECT or VCA paths to each output
Signal meters 3-colour LED for each input and output Green = signal (–12dB), yellow = 0dB, red = peak (+15dB)
Mic1,2 equalisers LF ±12dB 70Hz shelf, H/MF ±14dB @ 300Hz to 6kHz
Output equalisers LF ±12dB 70Hz shelf, HF ±14dB 9kHz shelf


Mic/Line 1,2 Balanced XLR pin2 = hot 2kohm -58 to –22dBu
  Phantom power = +15V Pad 10kohm -28 to +8dBu
Stereo Line 3,4,5 Dual RCA phono 10kohm -10dBV or +4dBu
Expander In 1,2,3,4 Part of 25way D female 10kohm 0dBu
Remote DC 1,2,3,4 Part of 25way D female 0V = off, +10V.DC = max
Ext. duck DC Part of 25way D female opto-isolated switch to 0V
Backup DC Part of 25way D female min +/-12V, max +/-15V.DC 300mA per rail
Mains Power Input 3pin IEC male socket 47-63Hz 18VA max
  nternally wired for country mains AC voltage:
  100V, 115V (110-120V),   230V (220-240V)
  Fuse T630mAL 250V 20mm T315mAL 250V 20mm


Zone out 1,2,3,4 Impedance balanced XLR pin2 = hot <75ohm Trim adjustable –10dBV to +4dBu
Expander Out 1-4 Part of 25way D female as Zone 1,2,3,4 out
Remote DC ref Part of 25way D female +10V.DC 5mA max


Maximum output +20dBu into 2kohm
Internal headroom +20dB
Frequency response 20Hz to 50kHz +0/-1dB
Distortion < 0.005% THD+noise at +12dBu 1kHz
Crosstalk Better than 90dB shutoff, 80dB interchannel
Noise Mic EIN -128dB referred to 150ohm source Line preamp -91dBu Mix noise all routed < -86dB


Width 483mm (19") Height 44/49mm (1.75") 1U Depth 260mm (10.3")
Weight Unpacked 4kg (9lb) Packed 5kg (11lb)

  • UK Based Company
  • Part of A.C. Entertainment Technologies - has its trading origins over 45 years ago
  • UK Stock Holding
  • UK Warranty
  • Free Delivery Over ?150
  • Great Prices
  • Over 20 Years' Experience
  • Specialist Advice
  • Fast Delivery
  • Finance Options Available

With years of experience supplying Businesses, Government Organisations, Charities, Schools, Colleges and Universities, we invite you to take advantage of our knowledge to help you make an informed choice, ensuring you are purchasing the best music products for your needs. With specialists in PA Systems, Pro Audio & Live Sound equipment on hand to answer calls and emails, you're in the best possible hands.

Contact us now to discuss your requirements or to request a quotation. Additional discounts may apply for educational establishments or size and value of order.

Purchase orders can be sent directly to or apply for your cash or credit account here. Terms and conditions will apply.

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