Soundcraft GB4-24 - 24-Channel Analog Mixing Console with 7x4 Output Matrix and 8 Auxiliary Sends/4 Sub Groups in Dark Blue Finish

The Soundcraft GB4-24 is a professional-grade 24-channel analog mixing console designed for demanding live sound applications, including churches, performance venues, and small touring systems. Featuring the renowned GB30 mic preamps and 4-band GB30 EQ, the GB4-24 delivers pristine sound quality with high headroom, making it ideal for handling complex audio environments. Designed by Graham Blyth to commemorate Soundcraft's 30th anniversary, the GB4-24 is built for durability and reliability, with careful attention to mechanical construction and ergonomics, ensuring smooth operation in any setting.

The GB4-24 boasts a rugged steel chassis with individual vertically-mounted PCBs for each input module, along with individually-nutted potentiometers, ensuring long-lasting durability. The desk features a sloping rear connector panel, making it easy to access connections from the front of the console during setup or while installed in a rack. The integral power supply can also be linked to an external backup PSU, providing added reliability in critical situations.

With 24 mono input channels and 2 stereo input channels, the GB4-24 provides a versatile layout for a wide range of mixing applications. Each mono channel features direct outputs, allowing for easy recording or integration with external effects processors. The GB4-24 includes 8 auxiliary sends, offering flexibility for monitoring and effects routing, along with 4 subgroups (configured as two stereo pairs) for efficient group mixing. The console also includes a unique stereo width control on the subgroups, enabling users to adjust the stereo image independently from the main mix bus, providing greater control over the spatial distribution of the sound.

A standout feature of the GB4-24 is its 7x4 output matrix, which allows up to seven signal feeds (from the group buses and main L, R, and C outputs) to be routed to four separate outputs. This is ideal for creating custom mixes for different zones or broadcast feeds. The built-in limiter on the record output ensures distortion-free recordings of the main mix, making it easier to capture high-quality audio in live settings. Additionally, the GB4-24 is equipped with 4 mute groups, allowing users to mute multiple channels simultaneously, adding another layer of control for live sound engineers.

The GB4-24's EQ section features Soundcraft's GB30 4-band EQ, with sweepable hi-mid and lo-mid frequency controls, providing precise tonal shaping on each input channel. The console's dual-mode topology allows it to be used for front-of-house (FOH) mixing or as a monitor console, giving users control over group or auxiliary outputs via the faders. With its comprehensive set of functions and compact footprint, the GB4-24 is a versatile and reliable solution for professional audio mixing, offering the high performance that Soundcraft is known for.

Features

• 24 mono input channels and 2 stereo input channels with GB30 mic preamps and 4-band GB30 EQ for precise audio control
• 7x4 output matrix for flexible routing and custom zone or broadcast mixes
• 8 auxiliary sends for versatile monitor and effects routing
• 4 subgroups (paired as stereo pairs) with adjustable stereo width control for enhanced spatial mixing
• Individually switched 48V phantom power on every input channel for condenser microphones
• Direct outputs on all mono input channels for recording or external processing
• 4 mute groups for simultaneously muting multiple channels
• Limiter on the record output for distortion-free stereo recordings
• Dual-mode topology for use in front-of-house or monitor mixing applications
• Durable steel chassis with individually nutted potentiometers and vertical PCBs for long-term reliability
• Sloping rear connector panel for easy access to connections from the front of the desk
• Integral power supply with external backup PSU link option for added reliability
• 100mm faders for smooth and accurate level control
• High-quality TRS jacks and Neutrik XLR connectors for dependable signal transmission
• 12-segment LED output metering for precise monitoring of levels
• Weight: 59.5 lbs
• Dimensions: 41.93 x 25.83 x 6.26 inches

Specifications

• Noise (Measured RMS, 22Hz to 22kHz Bandwidth)
  • Mic E.I.N. @ 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 and 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 200W
• Input and Output Impedances
  • Mic Inputs: 2kW
  • Line Inputs and Stereo Returns: 10kW
  • Input channels Insert Return: 5kW with EQ in, otherwise 3kW
  • Mix, Group, Aux, Matrix & Direct outputs: 150W
  • Insert sends: 75W
  • Recommended Headphone Impedance: 50 - 600W
• 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: 59.5 lbs
• Dimensions: 41.93 x 25.83 x 6.26 inches