ATC SCS120 Pro 15" Powered Studio Subwoofer

When a control room demands effortless low-frequency authority at high playback levels, the ATC SCS120 Pro provides the depth, accuracy and dynamic performance required for critical monitoring. This professional 15" powered studio subwoofer is engineered to extend monitoring systems with the same low-distortion precision and dynamic capability that define ATC’s flagship monitors. Built around ATC’s hand-crafted SS75-375SC high-excursion 15" driver and powered by a 300W discrete MOSFET Class A/B amplifier, the SCS120 Pro delivers bass extension down to 20Hz with exceptional control, clarity and transient accuracy. Designed for larger control rooms, midfield monitoring systems and immersive audio environments, including Dolby Atmos, it provides the low-frequency foundation needed for confident decision-making across demanding professional applications.

ATC Low-Frequency Performance With Accuracy and Control

At the core of the SCS120 Pro is ATC’s proprietary SS75-375SC subwoofer driver, engineered to deliver deep extension, substantial output and remarkably low distortion. Its sealed enclosure promotes fast, controlled transient response while avoiding the overhang often associated with ported subwoofer systems, helping engineers evaluate low-frequency content with greater precision. Producing up to 113dB continuous SPL and 119dB peak output, the SCS120 Pro delivers powerful bass reproduction while preserving the detail and accuracy required for professional monitoring. Whether evaluating mix balances, cinematic effects or immersive audio content, it reproduces the lowest octaves with clarity and control.

Flexible Integration for Professional Monitoring Systems

The SCS120 Pro is designed to integrate seamlessly with ATC’s larger active monitor systems as well as other professional monitoring environments. User-adjustable gain, phase, polarity and low-pass crossover controls allow precise alignment to room acoustics and speaker configurations. Balanced XLR inputs and outputs provide straightforward integration into stereo, surround and immersive monitoring systems, while selectable crossover frequencies support a variety of monitoring applications. Remote muting via an optional latching footswitch adds practical workflow flexibility during system calibration, speaker alignment and critical listening sessions.

Hand-Built Reliability for Demanding Studio Environments

Like all ATC professional products, the SCS120 Pro is hand-built in England using premium components and exacting manufacturing standards. Its convection-cooled discrete MOSFET Class A/B amplifier eliminates fan noise, ensuring silent operation in critical monitoring environments while maintaining long-term reliability. Protective circuitry, active limiting and thermal safeguards help ensure dependable performance under demanding workloads. Backed by a six-year warranty and ATC’s reputation for engineering excellence, the SCS120 Pro subwoofer delivers the scale, accuracy and low-frequency confidence required by today’s most demanding professional studios.