Soundcraft GB4 24-Channel Analog Console

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70.00 LBS
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Soundcraft GB4 24-Channel Analog Console

Featuring the GB30 Mic preamps and EQ, the GB4 is designed by Graham Blyth for the company’s 30th anniversary.

The desks carry the high quality hallmark with which Soundcraft is synonymous, with engineering and design as you'd expect from this high-end manufacturer. Careful attention has been given to the mechanical construction, to ensure reliability under strenuous conditions, with all input modules being constructed with individual vertically-mounted pcb’s, fitted to the steel chassis front panel with individually-nutted potentiometers.

The GB Series also shares the stylish looks of the MH4, MH3 and LX7ii consoles, continuing a strong family look and feel across the range.

Available in frame sizes from 16 to 40 channels, the GB4 is designed for installations such as churches and performance venues, or for small touring sound systems. The dual-mode topology implemented to such success on the MH3 and MH4 desks allows the GB4 to be used on FOH or monitor duties, with fader control of group or aux outputs.

Although largely conventional in layout, the GB4 does have some unique mechanical features. The rugged steel chassis has a sloping rear connector panel so that it is easier to configure from the front of the desk, while the integral power supply has a link option for an external back-up PSU.

Four mute groups allow several channels to be muted simultaneously, while another unique facility is the limiter on a set of dedicated record outputs that makes it easier to create a stereo recording of the mix.

The console also features an output matrix with seven feeds to four outputs, being fed from the group busses and main L, R and C (mono) outputs.

The GB4 offers a comprehensive set of functions and facilities in a small and cost-effective footprint, and delivers the high performance and reliability you would expect from a Soundcraft product. The RW5691SM supports two JB0159 lamps, which can be ordered separately.


  • 24-channel support
  • GB30 mic preamps and EQ section, designed by Soundcraft co-founder Graham Blyth, owe their design heritage to the MH3 and MH4 consoles
  • High performance 4-band GB30 EQ
  • Dual mode operation means console can easily be configured from FOH to Monitor with touch of a button
  • 7 true buses including 4 subgroups, left, right and center
  • 8 auxiliary sends with flexible pre/post switching
  • 4 mute groups
  • 7 x 4 matrix allows 4 separate sub-mixes of left, center and group outputs
  • Internal power supply WITH external PSU link option!
  • Direct outputs on every mono channel
  • 4 segment LEDs on each output and 12 segment output meters
  • Highly stylized design borrowed from the MH Series consoles

Recommended For

  • Houses of Worship
  • Music Venues
  • Musicians & Bands
  • Tour Sound
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Measured RMS, 22Hz to 22kHz Bandwidth
Mic E.I.N. @ unity gain,150Ω source impedance -128dBu
Mix Output, 40 inputs routed to mix <-82dBu
Group Outputs <-83dBu
Aux Outputs <-80dBu
Matrix Outputs <-89dBu

Crosstalk (@1kHz, typical)

Input Channel Mute <-97dB
Input Fader cut-off <-95dB
Pan isolation <-77dB
Mix route isolation <-97dB
Group route isolation <-97dB
Adjacent channel crosstalk <-99dB
Group to Mix <-89dB
Aux Send pots offness (typical) <-84dB
Matrix Send pots offness (typical) <-89dB

Frequency Response

Mic/Line Input to any output, 20Hz - 20kHz <1dB


Mic sens. -30dBu, +20dBu at all outputs @1kHz <0.006%


Typical @ 1kHz 80dB

Input & Output Max Levels

Mono & Stereo Mic Inputs +15dBu
Mono & Stereo Line Inputs +30dBu
Stereo Returns & Insert Returns +20dBu
Any output +20dBu
Nominal Operating Level 0dBu
Headphone Power 2x250mW into 200Ω

Input & Output Impedances

Mic Inputs 2kΩ
Line Inputs and Stereo Returns 10kΩ
Input channels Insert Return 5kΩ with EQ in, otherwise 3kΩ
Mix, Group, Aux, Matrix & Direct outputs 150Ω
Insert sends 75Ω
Recommended Headphone Impedance 50 - 600Ω

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