Professional Sound in a Compact Design with the Allen & Heath CQ-20B Digital Audio Mixer
The Allen & Heath CQ-20B digital audio mixer delivers professional 96kHz processing and wireless control in a compact rackmount design. Moreover, this rackmount digital mixing console fits perfectly in stage racks and road cases for touring musicians. Additionally, users consistently report feeling relieved after switching from bulky consoles that required complicated setup procedures and technical expertise.
Studio-Grade Audio Quality from the CQ-20B Stage Mixer
The CQ-20B features Allen & Heath’s renowned 96kHz processing engine that delivers pristine audio quality typically found in expensive mixers. Furthermore, this isn’t a compromised compact mixer but a professional tool with 16 mic preamps and 20 total channels. Consequently, you get studio-grade sound with comprehensive routing options including six dedicated monitor outputs for complete control. Similarly, the transparent signal path ensures your carefully crafted tones shine through without digital harshness or latency issues.
Wireless Control Makes the CQ-20B Compact Console Incredibly Flexible
Mix from anywhere in your venue using the built-in dual-band WiFi and free CQ MixPad app on your device. Therefore, you can walk the room and adjust levels from the sweet spot instead of being stuck behind a console. Meanwhile, the intuitive touchscreen interface feels natural and responsive for operators at any skill level. Subsequently, sound engineers praise how this wireless capability transformed their workflow compared to being confined to fixed mixing positions.
Quick Channels Feature Simplifies Mixing on the CQ-20B Rack Mixer
Get professional sound instantly using Quick Channels that provide instrument-specific processing with minimal effort instead of tweaking countless parameters. In addition, simply select your input source like acoustic guitar or vocals and dial in your sound. Thus, beginners achieve great results immediately while experienced engineers can switch to Complete Channels for deeper control. Likewise, this dual-mode approach makes the mixer perfect for both volunteer sound teams and touring professionals alike.
Intelligent Assistants Solve Common Sound Problems Automatically
The Gain Assistant automatically sets optimal input levels by monitoring your source at performance volume for perfect settings. Furthermore, the Feedback Assistant identifies problematic frequencies and applies precise filters to eliminate feedback before it ruins performances. As a result, you can push monitor levels higher without the piercing squeals that plague traditional systems. Indeed, the Automatic Mic Mixer manages multiple microphones by reducing gain on inactive channels for improved clarity.
Professional Recording and Playback Options Built In
Record up to 24 tracks at 96kHz quality using the SD card slot for computer-free recording of performances. Moreover, the integrated USB audio interface connects directly to your computer for multitrack recording and virtual soundcheck capabilities. Consequently, the CQ-20B works equally well in the studio as it does on stage for complete versatility. Additionally, Bluetooth connectivity lets you stream walk-in music directly from your phone without additional equipment required.
What’s Included in the Box?
- Allen & Heath CQ-20B Digital Audio Mixer
- Power Supply with Regional Adapter
- Quick Start Guide and Documentation
FAQ'S
Does the CQ-20B work without a tablet or phone?
No, the CQ-20B is designed as a headless mixer with no physical controls or screen—it requires control via the CQ MixPad app on a tablet, smartphone, or computer. This design keeps the mixer compact and lightweight while providing flexible wireless control from anywhere in the venue. The free app is available for iOS, Android, Windows, and Mac, so you can use virtually any device you already own.
Can I use the CQ-20B without WiFi or internet?
Yes, the built-in WiFi creates its own network and does not require internet access or an external router. Simply power on the mixer, connect your device to the CQ-20B’s WiFi network, and start mixing. You can also use a direct Ethernet connection to a computer for completely wired control if preferred. The built-in WiFi is solely for mixer control and does not require or use internet connectivity.
How many in-ear monitor mixes can I create?
The CQ-20B provides six dedicated XLR monitor outputs plus assignable alternate outputs, allowing you to create up to six completely independent monitor mixes for band members. Each mix includes full parametric EQ and processing, enabling tailored sound for every performer. If your band uses personal in-ear monitor systems with headphone amplifiers, you can connect all six monitor outputs to provide individual mixes for every musician.
Is this suitable for someone new to digital mixers?
Absolutely. The CQ-20B is specifically designed to be approachable for users at all skill levels. The Quick Channels feature provides professional sound with minimal technical knowledge—simply select your instrument type and adjust a single control. The Gain and Feedback Assistants handle traditionally complex tasks automatically. Many users report getting great results within minutes of first using the mixer, even without prior digital mixing experience. For users wanting to learn more, Complete Channels unlock full professional control.
Can I record multitrack audio for mixing later?
Yes, the CQ-20B offers excellent recording capabilities. The 24-in/22-out USB audio interface connects directly to your DAW (such as Logic, Ableton, Reaper, or Pro Tools) for full multitrack recording and virtual soundcheck. For computer-free recording, the SD card slot records up to 24 tracks at 96kHz directly to an SD card, perfect for capturing live performances, creating live albums, or archiving shows. You can also do simple stereo recording via the USB-A port.
Does it come with rack mount hardware?
No, rack ears are sold separately as an optional accessory (Allen & Heath part AH-CQ20B-RK19). The mixer is designed to work on stage without racking, but most users who integrate it into a rack case purchase the official rack mounting kit. The CQ-20B occupies 4U of rack space when mounted. Some users recommend allowing 5-6U total space to accommodate the power cable, which exits from the top of the unit when rack-mounted.
What’s the difference between the CQ-20B and other CQ models?
The CQ series includes three models: CQ-12T (12 channels, desktop with touchscreen and controls), CQ-18T (18 channels, desktop with touchscreen and controls), and CQ-20B (20 channels, rackmount/stagebox with no screen or controls). All share the same 96kHz processing, Quick Channels, and intelligent assistants, but differ in form factor and channel count. The CQ-20B is ideal for users who want the highest channel count in the most compact, tour-ready rackmount format and prefer wireless tablet control.
Can I use this as my main studio interface?
Yes, the 24-in/22-out USB audio interface works seamlessly with all major DAWs, making the CQ-20B an excellent studio interface with built-in mixing, processing, and effects. Many users appreciate having a single device that serves as their live mixer on weekends and studio interface during the week. The 96kHz processing ensures pristine audio quality for recording, and the ability to recall settings makes switching between live and studio use effortless.
How reliable is the WiFi control?
The dual-band WiFi (2.4GHz and 5GHz) with automatic channel selection provides stable, responsive control in most environments. Users consistently report reliable performance even in venues with existing WiFi networks. The system automatically selects the clearest channel to minimize interference. For critical applications or environments with heavy RF interference, you can use the Ethernet port for wired connection to a computer or dedicated router for added reliability.
