The ICOA PRO SUB 21 A combines impressive bass response with a carefully designed, transport-friendly build. The high-performance 21″, 3 kW bass reflex subwoofer delivers powerful, precise, and punchy bass thanks to its custom-designed 21″ neodymium woofer, making it ideal for mobile DJs, venues, live events, festivals, and permanent installations.

At the heart of the ICOA PRO SUB 21 A is a powerful 21″ woofer with a 4.5″ neodymium motor. Its sleek design and carefully tuned suspension deliver surprisingly precise, clean, and clear bass.

The powerful Class D amplifier delivers up to 1,500 W RMS (3,000 W peak) and 136 dB max SPL, ensuring high output and reliable bass performance. Four extra-large bass reflex ports with current optimization deliver powerful sound down to 29 Hz.

The modern SysCore® DSP with cutting-edge FIR/IIR filters and limiters ensures distortion-free sound and reliable performance even at extreme levels.

With a 4-band parametric EQ, delay function (up to 50 m), and the option to select up to three crossover frequencies (80 Hz, 100 Hz, 120 Hz), the subwoofer adapts flexibly to various applications. It features preset settings for applications such as low-latency monitoring and cardioid setups.

The menu is highly intuitive to navigate thanks to the color screen with an “all-in-one” control or via the free ICOA PRO app (iOS/Android). The app allows all settings to be quickly controlled wirelessly and multiple speakers to be linked together. It enables the creation and deployment of a stereo setup with up to two tops and four subwoofers in just a few seconds, including Bluetooth 5.1 music streaming and TWS. A status LED located on the front of the subwoofer allows for easy identification and also indicates whether the limiter is active.

The system can be easily wired and expanded, as it features two XLR inputs and two XLR outputs, as well as a powerCON connector that allows daisy-chaining.

Thanks to the integrated stacking notches and two M20 mounting cups, the subwoofer can be flexibly stacked and integrated both horizontally and vertically.

The 15 to 18 mm birch plywood enclosure is compact by design and has dimensions similar to an 18″ model. With a width of just 562 mm, the subwoofer can be easily transported using standard transport solutions (Sprinter/TRANSflex flight case alongside the subwoofer), ideal for common transport vehicles (Mercedes Sprinter, Fiat Ducato, Ford Transit, and VW Crafter).

This design takes up very little space and, combined with a robust polyurea coating, makes the ICOA PRO SUB 21 A the perfect choice for both touring and permanent installations.

It offers optimal handling from all sides thanks to its eight ergonomic handles, which make setup and removal easier. For longer distances, the ICOA PRO SUB CB platform makes transport much easier.

The ICOA PRO SUB 21 A sets new standards with its compact design, powerful bass response, and cutting-edge SysCore® DSP. Thanks to headline-worthy power, it is the perfect tool for demanding professional applications, such as live events, venue installations, and portable DJ systems.