ATC Loudspeakers PRO ATC SCS120iW Pro 15" Professional Active Subwoofer

15" active subwoofer - for in-wall installation

• 15" professional in-wall subwoofer
• ATC SS75-375SC long-throw drivers
• R1-300 300W remote amplifier included
• Extended response down to 20Hz (-6dB)
• Perfect flush-mount installation for immersive studios
• Designed and hand-built in the UK

ATC SCS120iW Pro: high-performance in-wall subwoofer

The ATC SCS120iW Pro is a 15" active subwoofer designed specifically for flush-mount wall installations in professional studios. It includes the 19"/7U rack-mountable R1-300 300W remote amplifier for flexible and discreet integration into the monitoring system. Perfect for multichannel, surround and Dolby Atmos environments.

Deep and accurate bass reproduction

The new SS75-375SC driver with neodymium motor provides greater efficiency (+3dB) and cleaner, deeper bass reproduction than the SCS70. The low-pass filter is selectable at 50Hz, 65Hz, 80Hz or 320Hz (Linkwitz-Riley 4th order), with SPLs up to 119 dB peak.

Remote amplification and built-in protections

R1-300 remote amplifier provides 300W into 8Ω, with Class AB MOSFET design, low THD (<0.003%) and DC offset and overtemperature protection. Includes active ATC limiter for transparent dynamic control. Connection via 5-pin XLR and NL4.

Aesthetic and functional compatibility with ATC SCM150

The SCS120iW cabinet is sized to perfectly match the width of the SCM150A and SCM150AiW Pro speakers, ensuring visual consistency and optimal studio placement. The recessed design simplifies integration into technically and acoustically curated rooms.

Technical Specifications.

• Driver: 1 x ATC SS75-375SC 8Ω, 15"
• Bass cut-off: 20Hz (-6dB)
• LPF filters: 50 / 65 / 80 / 320Hz (24 dB/oct)
• Maximum SPL: 113 dB continuous, 119 dB peak
• Sensitivity: 85 dBC @ -17dBu
• Amplifier: MOSFET Class AB, 300W
• Inputs: 2x XLR (balanced), phase and polarity control
• Controls: level, gain, phase (0-180°), polarity
• Active limiter, thermal and DC protection
• Mute via footswitch (6.35mm jack)
• Power supply: 220-230V or 115V (fixed setting)
• Power consumption: 16W idle / 170W at 1/8 power / 500W max.
• Dimensions: 498 x 518 x 630 mm
• Net weight: 35.3kg