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ATC Unveils High-Output SCS140iW Pro 2×12” and SCS240iW Pro 2×15” In-Wall Subwoofers.

Stroud, Gloucestershire, UK: ATC is proud to introduce its SCS140iW and SCS240iW Pro subwoofers, new dual-driver in-wall models evolved from the established 12” SCS70iW Pro and 15” SCS120iW Pro designs. Representing ATC’s most powerful in-wall subwoofer systems to date, these models deliver significantly increased output and performance for modern stereo, surround and immersive monitoring environments.

The larger SCS240iW Pro has been engineered for the largest control rooms, stereo and immersive formats and for seamless integration with ATC’s SCM300AiW main monitors. The SCS140iW Pro, meanwhile, is ideally suited to partner the SCM200AiW main monitors and performs equally effectively as a dedicated LFE solution for surround and immersive formats such as Dolby Atmos. Both subwoofers provide extended low-frequency capability and exceptional headroom, enabling accurate monitoring in demanding professional environments.

SCS140iW Pro

The SCS140iW Pro is a new 2×12” design that builds upon the strengths of the proven SCS70iW Pro by utilising a pair of 12”/300 mm drivers and dual remote amplifiers. This upgrade delivers a 6 dB increase in output, achieving a continuous SPL capability of 116 dB and a peak of 121 dB at 1 m. Despite this performance, the cabinet remains compact, with a width that matches the SCM200AiW in-wall main monitor for a cohesive visual and acoustic pairing. The SCS140iW Pro can also partner smaller ATC models or complement any system requiring extended bass performance with high SPL and headroom.

SCS240iW Pro

Designed for the largest control rooms, the SCS240iW Pro is the most powerful and linear subwoofer manufactured by ATC. Evolved from the SCS120iW Pro, this new 2×15” design doubles both the driver and amplifier complement, resulting in a 6 dB increase in output over its predecessor. It delivers 119 dB continuous and 126 dB peak SPL at 1 m.

The cabinet width matches the SCM300AiW main monitor, creating an impressive full-range in-wall system when installed together. The SCS240iW Pro may also be used alongside ATC’s larger mid-field monitors — including the SCM150A Pro — or integrated into any system demanding a low cut-off frequency with high dynamic range.

Drive Unit Technology

The 12”/300 mm and 15”/375 mm drivers used in the SCS140iW Pro and SCS240iW Pro are built entirely in-house by ATC, reflecting the company’s commitment to designing and manufacturing products from component level without compromise. Both drivers feature a 30 mm magnetic gap, which is 50% longer than previous generation bass drivers. This extended gap reduces motor-generated distortion while enabling the high excursion required for accurate, dynamic low-frequency reproduction. Every element of the driver — from the motor to the suspension — has been meticulously optimised using advanced analysis tools to deliver deep, controlled bass from 120 Hz down to below 20 Hz, all with minimal distortion and maximum impact.

Amplifier Technology

Power for the new subwoofers is provided by dual R1-300 Pro remote-mounted 7U/19” amplifiers, each using 300 W Class A-B output stages. Their rack-mount format offers installation flexibility, allowing the amplifiers to be located within a nearby wall, a control-room rack, or a machine room. Amp connections are made using NL4 speaker cables and 5-pin XLR. The amplifiers offer balanced stereo inputs and full-range balanced outputs, with analogue 4th-order Linkwitz-Riley filters providing multiple crossover options including an industry-standard 80 Hz setting and a bypass mode for use with external processing. Polarity switching, variable phase adjustment and a stepped attenuator allow precise system alignment. The amplifiers also feature convenient mute control via footswitch, with daisy-chain capability for multiple subs.

Both subwoofers are available to order now.

SCS140iW Pro is available at a UK RRP (Recommended Retail Price) of £7700 + VAT including 2 x R1-300 Pro remote power amplifiers (excluding cables).

For more in-depth information, please visit the dedicated SCS140iW Pro Product Webpage.

SCS240iW Pro is available at a UK RRP of £10,817, including it 2 x R1-300 Pro remote power amplifiers (excluding cables).

For more in-depth information, please visit the dedicated SCS240iW Pro Product Webpage.

For pricing and availability in your country, please contact your local dealer or distributor. You can find them listed here in the Where To Buy section of the website.