The Allen & Heath CQ-18T is a high-performance compact digital mixer designed for bands, venues, content creators, and installed audio applications requiring greater input capacity and advanced control. It provides 19 inputs to mix, including 16 mono or linkable channels and 3 stereo channels, along with a stereo Main LR output and six aux outputs that can be linked for up to three stereo mixes. The mixer features eight XLR mic/line inputs and eight XLR/TRS combi mic/line inputs, plus a dedicated stereo line input, ensuring flexible connectivity for microphones, instruments, and playback sources. Dual stereo headphone outputs support monitoring for multiple users.

Operating with 96kHz input and output processing, the CQ-18T delivers detailed, high-resolution audio performance. It includes four built-in multi-FX engines for professional-grade effects without external processors. Dedicated stereo USB and Bluetooth inputs make playback seamless, while extensive recording options include USB-A for stereo recording and data, USB-B for 24x22 multichannel audio interfacing, and an SD card slot for 24x22 multitrack recording and playback.

Control is centered around a 7-inch capacitive touchscreen with five screen keys and a dedicated rotary encoder, supported by three configurable SoftRotaries and three SoftKeys for fast access to essential functions. The mixer also offers four mute groups and four DCAs for streamlined mix management. Built-in dual-band WiFi allows the CQ-18T to operate as a host for wireless control, while an RJ45 port enables client network connectivity. It supports single or dual footswitch operation and can be rack mounted with an optional kit. Powered via a 12V DC inlet with an external worldwide PSU included, the CQ-18T can be controlled through free apps for Windows, macOS, iOS, and Android, providing flexible and modern workflow control in both live and installed environments.