• Soundcraft GB4 32-Channel High Performance Analog Mixer
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Soundcraft GB4 High Performance Analog Mixer | Channels: 24

Soundcraft GB4 High Performance Analog Mixer | Channels: 24

SoundPro Item: 46913 | Part Number: RW5691SM

$3,595.00
$4,315.00 $3,595.00
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MSRP: $4,315.00 | MAP: $3,595.00

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  • Individually switched 48V phantom power on every mono input module
  • 8 Aux sends
  • 4 Group sends (paired)
  • 4 Mute groups
  • 7+4 Output Matrix
  • Limiter on record output
  • GB30 mic pre-amp
  • 4-band GB30 EQ
  • Integral power supply, with an external power supply link option
  • All metal TRS jacks and Neutrik XLRs
  • Direct outputs on all mono input channels
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Fitting a comprehensive set of functions into a compact, cost-effective build, the GB4 from Soundcraft is a high-performance analog mixer. It’s ideal for medium-sized installations such as houses of worship or performance venues, but it’s also a great choice for small touring sound systems. In addition, GB4 boasts dual-mode topology equips you for fader control of group or aux outputs, so you can also use this mixer for FOH or monitor duties.

The GB4 has a standard layout for intuitive operation. It also features a GB30 Mic Preamplifier and Equalizer that enables high-resolution adjustment over a wide gain range of 55 dB. It comes in four variant models, differentiated by the frame sizes:

  • 16 channels
  • 24 channels
  • 32 channel
  • 40 channels

Some of GB4’s unique features include a rugged steel chassis with a sloping rear connector panel, allowing it to be easily configured from the front of the desk, along with an integrated power supply with a link option for external PSU backup. Four mute groups allow you to mute several channels at the same time. A limiter lets you create a stereo recording of your mix using a selected set of record outputs. An output matrix contains 7 feeds to 4 outputs, being fed from the group busses and main L, R, and C (mono) outputs.

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  • 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): <-89dB
  • Frequency Response (mic/line input to any output, 20Hz - 20kHz)<1dB
  • 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
    • 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
  • EQ
    • HF: 13kHz, +/-15dB, 2nd order shelving
    • Hi-Mid: 550Hz - 13kHz, +/-15dB, Q=1.5
    • Lo-Mid: 80Hz - 1.9kHz, +/-15dB, Q=1.5
    • LF: 80Hz, +/-15dB, 2nd order shelving
  • Weight
    • 16 Channel: 22 kg (48.5 lbs)
    • 24 Channel: 27 kg (59.5 lbs)
    • 32 Channel: 32 kg (70.5 lbs)
    • 40 Channel: 37 kg (81.6 lbs)

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