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Soundcraft GB8 32-Channel High Performance Analog Mixer
Soundcraft GB8 High Performance Analog Mixer

Soundcraft GB8 High Performance Analog Mixer

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SoundPro Item: 63333
MSRP: $5,622.46

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Augmenting the already highly successful GB4 console range is the new GB8 8-bus console. Available in frame sizes from 24 to 48 channels, each with four full-function stereo channels and four stereo returns, the GB8 is designed for installations such as churches and performance venues, or for small touring sound systems. The dual-mode topology implemented on the MH3 and MH4 desks allows the GB8 to be used on FOH or monitor duties, with fader control of group or aux outputs. Additional features over the GB4 include a 1kHz oscillator and a meter bridge with three led meters that very closely emulate the ballistics of VU meters.

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

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

Although largely conventional in layout, the GB8 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.

GB8 desks carry the high quality hallmark with which Soundcraft is synonymous, with professional engineering and design that 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.

Soundcraft GB8 Features

  • Dual purpose console
  • 24, 32, 40 and 48 channel frame sizes
  • Individually switched 48V phantom power on every mono input module
  • 4 full-feature Stereo channels
  • 8 Aux sends (all switchable between pre/post fader operation)
  • 8 Group sends (SWAP with all 8 Auxes)
  • 4 Stereo returns
  • 4 Mute groups
  • 11x4 Output Matrix
  • Limiter on Record Output and Alternative Stereo Output
  • GB30 mic pre-amp
  • 4-band GB30 EQ
  • 1kHz oscillator
  • Meter Bridge with accurate VU meters for left, right, and centre outputs
  • Integral power supply, with an external power supply link option
  • All metal TRS jacks and Neutrik XLRs
  • Direct outputs on all mono input channels
  • GB8 Analog Mixer1
  • Power supply cable1
  • Noise (measured RMS, 22Hz to 22kHz bandwidth)
    • Mic EIN @ Unity Gain, 150W 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): <-84dB
  • Frequency Response (mic/line input to any output, 20Hz - 20kHz)<1 dB
  • THD+N (mic sens. -30dBu, +20dBu at all outputs @ 1kHz)<0.006%
  • CMRR (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 & Stereo Returns: 10kΩ
    • Mix, Group, Aux, Matrix & Direct Outputs: 150Ω
    • Insert Sends: 75Ω
    • Insert Returns: 5kΩ
    • Recommended Headphone Impedance: 50-600Ω

In The Box

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