ATC SCS240iW Dual 15″ In-Wall Active Subwoofer

The ATC SCS240iW Pro is the ultimate low-frequency solution for large-scale professional control rooms. This dual 15-inch active subwoofer is specifically engineered for flush-mount (soffit) installation, providing the massive headroom and surgical precision required for high-end stereo, multi-channel, and immersive audio environments.

Unrivaled Low-Frequency Power

The SCS240iW Pro is built around two ATC hand-built 15” (375mm) SS75-375SC drivers. These proprietary sub-bass drivers are world-renowned for their “Super Linear” performance, offering minimal distortion even at the extreme Sound Pressure Levels (SPL) required for modern cinematic and music production.

To ensure peak performance without thermal interference, the system utilizes dual R1-300 remote rack-mount amplifiers. By housing the electronics in a dedicated 7U/19” rack space, the subwoofer cabinet remains a pure, sealed-box acoustic instrument optimized for in-wall integration.

Key Specifications

Architectural Precision

Designed as the perfect partner for SCM300AiW Pro main monitors, the SCS240iW Pro features an identical cabinet width. This allows for a seamless, mirrored aesthetic and phase-coherent integration when building a full-range monitoring wall.

• Integrated Aesthetics: Recessed input panels ensure the cabinet sits perfectly flush within the wall structure.

• Professional Calibration: Fine-tune your room response with onboard user controls for Level, Low-Pass Frequency, and Phase.

• Instant Monitoring Checks: A dedicated 1/4” jack allows for remote muting via a latching-type footswitch (sold separately), perfect for checking mix translation with and without the sub.

The ATC Standard

“The SCS240iW Pro represents the pinnacle of ATC’s sub-bass engineering, offering the scale and authority needed for the world’s most demanding recording and post-production studios.”

Hand-built in England to the most exacting standards, this subwoofer system is designed for a lifetime of reliable, high-performance service in the professional sector.