
Description
GR4 is a 1U rack-mounting or desktop audio mixer, providing simple yet comprehensive control of background music and paging in bars, restaurants, stores and other leisure / retail environments. Standout features include optional remote wallplates, a mic input on the front panel, plus a 3.5mm jack on the front for portable music sources.
Connectivity:
- MIC INPUTS
Four mic inputs on rear mount Phoenix connectors with MIC1 selectable to an optional front mounted XLR. - LINE INPUTS
Four stereo inputs on rear mount phono connectors. An additional front mounted 3.5mm jack socket overrides input 4 phono source. - ZONE OUTPUTS
Two stereo (mono selectable via internal jumper) zones on rear mount Phoenix connectors. An additional two mono zone outputs are available with mix output being selectable from internal jumpers. - CONTROL
Paging and Alarm contact inputs on rear mounted Phoenix connectors allow integration with 3rd party paging stations and fire alarm systems. - REMOTE
Remote control can be achieved via PL-14 Remote connected to the rear mounted RJ45 or custom/3rd party analogue remotes connected to the rear mounted Phoenix connectors.
Features:
- MIXING
Individual mix and selectable control of all inputs to Z1 & Z2. Multiple options for configuring mix outputs to Z3 & Z4 (via internal jumpers). - DYNAMICS
Gain and 2 band EQ available on all mic inputs with an additional 2 band EQ available on Z1 & Z2 outputs. - PRIMARY MIC MODE
When audio sensed on MIC1 channel and/or PAGE contact closure is sensed then music is faded to pre-set level and MICs2-4 muted for the duration of the announcement. MIC1 zone select LEDs flash slowly when in priority mic mode. - GAIN / VOLUME ROTARY CONTROLS CAN BE REMOVED AND CAPPED (CAPS SUPPLIED) TO PREVENT UNAUTHORISED USE.
Mic Input Sensitivity (Gain = Min) | 0dBu |
Mic Input Sensitivity (Gain = Max) | -50dBu |
Mic Level control (Max) | +5dB |
Mic Level control (Min) | -80dB |
Mic HPF -3dB | 320Hz (TBC) |
Mic EQ LF | +/- 15dB fc = 80Hz |
Mic EQ HF | +/-15dB fc = 8kHz |
Mic Frequency Response | 20Hz Ð 20kHz +/-1dB |
Mic THD+n @0dBu in 1kHz | 0.004% 22-22kHz |
Mic THD+n @-30dBu in 30dB gain 1kHz | 0.005% 22-22kHz |
Mic Hi Level warning LED (Unity gain) | +18dBu |
Clip level (Unity gain) | +21dBu |
ST Input Sensitivity (Gain link OFF) | 0dBu |
ST Input Sensitivity (Gain Link ON) | -10dBu |
ST Level control (Max) | +6dB |
ST Level control (Min) | -76dB |
ST Frequency response 20Hz | 20Hz Ð 20kHz +/-0.5dB |
ST THD+n @-10dBu in 1kHz | 0.015% 22-22kHz |
ST THD+n @0dBu in 1kHz | 0.035% 22-22kHz |
Crosstalk from unselected channel | -75dB @ 1kHz |
Main Zone Level control (Max) | 0dB |
Main Zone Level control (Min) | -74dB |
Main Zone Hi Lev LED (Unity gain) | +18dBu |
Main Zone EQ LF | +/-15dB fc = 80Hz |
Main Zone EQ HF | +/-15dB fc 8kHz |
Main Zone Clip level (Unity gain) | +21dBu |
Noise: ST Input to Main Zone output (Unity) Mic Input routed at Min gain as well Mic Input routed at Max gain |
-90dBu 22-22kHz -88dBu 22-22kHz -77dBu 22-22kHz (150R source) |
Power consumption: GR4 unit (no remote attached) |
15W |
Height Length Width |
48mm (1.9Ó) 242mm (9.5Ó) 438mm (17.2Ó) |
Weight | 3.4kg (7.5lbs) |
GR4 is a 1U rack-mounting or desktop audio mixer, providing simple yet comprehensive control of background music and paging in bars, restaurants, stores and other leisure / retail environments. Standout features include optional remote wallplates, a mic input on the front panel, plus a 3.5mm jack on the front for portable music sources.
Connectivity:
- MIC INPUTS
Four mic inputs on rear mount Phoenix connectors with MIC1 selectable to an optional front mounted XLR. - LINE INPUTS
Four stereo inputs on rear mount phono connectors. An additional front mounted 3.5mm jack socket overrides input 4 phono source. - ZONE OUTPUTS
Two stereo (mono selectable via internal jumper) zones on rear mount Phoenix connectors. An additional two mono zone outputs are available with mix output being selectable from internal jumpers. - CONTROL
Paging and Alarm contact inputs on rear mounted Phoenix connectors allow integration with 3rd party paging stations and fire alarm systems. - REMOTE
Remote control can be achieved via PL-14 Remote connected to the rear mounted RJ45 or custom/3rd party analogue remotes connected to the rear mounted Phoenix connectors.
Features:
- MIXING
Individual mix and selectable control of all inputs to Z1 & Z2. Multiple options for configuring mix outputs to Z3 & Z4 (via internal jumpers). - DYNAMICS
Gain and 2 band EQ available on all mic inputs with an additional 2 band EQ available on Z1 & Z2 outputs. - PRIMARY MIC MODE
When audio sensed on MIC1 channel and/or PAGE contact closure is sensed then music is faded to pre-set level and MICs2-4 muted for the duration of the announcement. MIC1 zone select LEDs flash slowly when in priority mic mode. - GAIN / VOLUME ROTARY CONTROLS CAN BE REMOVED AND CAPPED (CAPS SUPPLIED) TO PREVENT UNAUTHORISED USE.
Mic Input Sensitivity (Gain = Min) | 0dBu |
Mic Input Sensitivity (Gain = Max) | -50dBu |
Mic Level control (Max) | +5dB |
Mic Level control (Min) | -80dB |
Mic HPF -3dB | 320Hz (TBC) |
Mic EQ LF | +/- 15dB fc = 80Hz |
Mic EQ HF | +/-15dB fc = 8kHz |
Mic Frequency Response | 20Hz Ð 20kHz +/-1dB |
Mic THD+n @0dBu in 1kHz | 0.004% 22-22kHz |
Mic THD+n @-30dBu in 30dB gain 1kHz | 0.005% 22-22kHz |
Mic Hi Level warning LED (Unity gain) | +18dBu |
Clip level (Unity gain) | +21dBu |
ST Input Sensitivity (Gain link OFF) | 0dBu |
ST Input Sensitivity (Gain Link ON) | -10dBu |
ST Level control (Max) | +6dB |
ST Level control (Min) | -76dB |
ST Frequency response 20Hz | 20Hz Ð 20kHz +/-0.5dB |
ST THD+n @-10dBu in 1kHz | 0.015% 22-22kHz |
ST THD+n @0dBu in 1kHz | 0.035% 22-22kHz |
Crosstalk from unselected channel | -75dB @ 1kHz |
Main Zone Level control (Max) | 0dB |
Main Zone Level control (Min) | -74dB |
Main Zone Hi Lev LED (Unity gain) | +18dBu |
Main Zone EQ LF | +/-15dB fc = 80Hz |
Main Zone EQ HF | +/-15dB fc 8kHz |
Main Zone Clip level (Unity gain) | +21dBu |
Noise: ST Input to Main Zone output (Unity) Mic Input routed at Min gain as well Mic Input routed at Max gain |
-90dBu 22-22kHz -88dBu 22-22kHz -77dBu 22-22kHz (150R source) |
Power consumption: GR4 unit (no remote attached) |
15W |
Height Length Width |
48mm (1.9Ó) 242mm (9.5Ó) 438mm (17.2Ó) |
Weight | 3.4kg (7.5lbs) |
Your home for all things pro audio—backed by expertise and experience. Connect with us today.
Your home for all things pro audio—backed by expertise and experience. Connect with us today.