Soundcraft GB4 40ch 40+4/4/2 GB Series Console
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- SKU
- RW5693SM
. Description
Soundcraft GB4 40ch (40+4/4/2) Mixing Console
The Soundcraft GB4 is a professional analog mixing console built for hands-on control and stage-ready reliability. Smooth 100mm faders and tactile potentiometers give you the responsive feel needed to ride levels live, while GB30 microphone preamplifiers with ultra low-noise floors capture every detail your performers deliver. This 40-channel workhorse pairs warm analog circuitry with flexible I/O architecture that adapts to live sound, studio recording, and theater production without compromise. The individually-nutted potentiometers mounted to a steel chassis front panel are engineered to survive years of touring and nightly use in demanding professional environments.
Design & Construction
The console measures 1523mm wide × 169mm high × 656mm deep and weighs 37kg, striking a balance between operational footprint and portability for touring rigs and permanent installations alike. Individual vertically-mounted PCBs fitted to the steel chassis front panel with individually-nutted potentiometers deliver both rugged durability and the tactile, direct control that working engineers demand from a mixing platform built to last.
Channel Architecture & Signal Flow
40 mono input channels (via 1/4" TRS and 3-pin XLR) plus 4 stereo input channels let you connect everything from drum mics to keyboards without worrying about running out of inputs, while 8 auxiliary sends, 4 stereo returns, 4 group outputs, and a 7×4 output matrix give you the routing depth needed to build complex monitor mixes, effects chains, and submix hierarchies. Direct outputs on all mono channels and insert points on mono inputs, main output, and subgroup outputs let you patch outboard gear exactly where you need it.
Key Features
- 40 mono input channels with balanced 3-pin XLR and 1/4" TRS connectivity
- 4 stereo input channels with paired L/R inputs
- GB30 microphone preamplifiers with -128dBu E.I.N. (@150Ω source impedance)
- 4-band EQ per channel: High (13kHz, ±15dB shelving), Hi-Mid (550Hz–13kHz, ±15dB), Lo-Mid (80Hz–1.9kHz, ±15dB), Low (80Hz, ±15dB shelving)
- 8 auxiliary sends with 4 stereo returns
- 4 group outputs on balanced 3-pin XLR connectors
- 7×4 output matrix for flexible post-fader mixing
- Individually switched 48V phantom power on every mono input
- Direct outputs on all 40 mono input channels
- Insert points on all mono inputs, main output, and subgroup outputs
- 100mm faders for channel-level control
- Integrated LED and VU meter bridge for input and output metering
- THD+N <0.006% (at mic sensitivity -30dBu, +20dBu output @1kHz)
- Dimensions: 1523mm (W) × 169mm (H) × 656mm (D); Weight: 37kg
The GB4 delivers proven analog reliability with the routing flexibility and transparent audio quality that working sound engineers trust night after night. Whether mixing an intimate venue or a complex theater production, this console gives you the hands-on control, stage-ready durability, and creative flexibility your craft demands.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The Soundcraft GB4 is a professional 40-channel analog mixing console built for live sound, studio sessions, and theater production, featuring GB30 mic preamps with ultra-low noise floors and warm, transparent analog circuitry. Designed for touring and permanent installations, its 100mm faders and individually-nutted potentiometers deliver responsive, tactile control that feels natural under pressure—ideal for engineers who demand proven reliability and hands-on mixing authority. The extensive routing architecture (8 aux sends, 4 stereo returns, 7×4 matrix, direct outputs, and insert points) gives you the flexibility to integrate outboard gear and handle anything from intimate venues to complex multi-act productions.
Who This Is For
Great for
- ✓ Live Performance
- ✓ Studio Sessions
- ✓ Theater Production
Skill level: Professional
Frequently Asked Questions
What makes the GB30 preamps different, and what noise floor can I expect?
The GB4 uses Soundcraft's GB30 microphone preamplifiers with an ultra-low noise floor of -128dBu E.I.N. at 150Ω source impedance, delivering the transparency and headroom professional engineers expect from a mixing console. This ultra-low-noise floor means your quietest sources—acoustic instruments, vocals, ambient recordings—stay clean and distortion-free, even under heavy processing or at high output levels.
How many inputs and outputs does the GB4 have, and can I integrate outboard gear?
The console provides 40 mono input channels (via XLR and 1/4" TRS) plus 4 stereo input channels, with 8 auxiliary sends, 4 stereo returns, 4 group outputs, and a 7×4 output matrix. Direct outputs on all 40 mono channels and insert points on every mono input, the main output, and subgroup outputs allow you to send audio to external processors (compressors, reverbs, EQs) and bring it back into your mix seamlessly.
Is this console suitable for touring, or is it better for a permanent installation?
The GB4 is built for both: it weighs 37kg and measures 1523mm wide × 656mm deep, making it manageable for tour loads while remaining substantial enough for permanent venues. Individually-nutted potentiometers mounted to a steel chassis front panel and vertically-mounted PCBs ensure durability and reliable performance in demanding live and touring environments.
What EQ and tone-shaping controls are available per channel?
Each channel includes a 4-band parametric/shelving EQ: High (13kHz, ±15dB shelving), Hi-Mid (550Hz–13kHz, ±15dB), Lo-Mid (80Hz–1.9kHz, ±15dB), and Low (80Hz, ±15dB shelving). This gives you precise control over tone from deep low-end correction to bright air, whether you're shaping individual sources during recording or balancing a complex live mix.
Can I use this console for both live sound and studio recording?
Yes—the GB4 is designed specifically for live performance, studio sessions, and theater production. Its warm analog circuitry, transparent audio quality, ultra-low noise floor, and extensive routing make it equally at home capturing clean recordings in a studio or managing complex live mixes at a venue or theater.
Do I pay sales tax on this order?
We collect sales tax only on orders shipped to California. Orders shipped to any other US state are charged $0 sales tax at checkout when you buy direct from our website. On this item that is roughly $351 less out the door than the same listed price at a national retailer or on a marketplace. Marketplaces such as eBay, Reverb and Amazon collect sales tax in nearly every state as marketplace facilitators no matter who the seller is, so the same item at the same price costs less bought direct. Free US shipping and 30-day returns are included. Some states ask buyers to self-report use tax on out-of-state purchases.
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