
Stroud, Gloucestershire, UK: ATC are very pleased to introduce the SCM105AC Pro and SCM105AiWC Pro, two new high-performance centre channel studio monitors, precision-engineered for surround and immersive audio environments. Sharing engineering and technology with tried-and-tested ATC 3-way studio monitors, this performance is now available in a compact cabinet format, to deliver exceptional
clarity and resolution in the centre channel.

Both new models are based on the successful SCM110A Pro, a 3-way studio monitor trusted by leading studios worldwide. They boast dual 9″/234 mm SL bass drivers, a 3″/75 mm ‘Superdome’ midrange, and a 1″ SSpec tweeter, all designed and manufactured in-house by ATC. Each driver is driven by a discrete MOSFET A/B power amplifier delivering 200W (bass), 100W (mid) and 50W (HF). A 4th-order Linkwitz-Riley electronic crossover with all-pass filters offers uncompromised phase coherence and audio clarity.

The SCM105 is offered in two configurations, with closely matched performance, both to each other and to existing production-proven ATC monitors. The SCM105AC Pro is the free-standing / stand-mount solution, whilst the SCM105AiWC has been optimised for flush mounting in-wall via the following features:

The amp partnering the in-wall SCM105AiWC is the R1-350 Pro, a 19”/6U rack-mount version of the amp that drives the SCM105AC (and SCM50/100/110/150). It can be mounted in a control room wall or in a 19” rack. Balanced audio and power connect via front panel XLR and IEC connectors. Connections to the loudspeaker are via rear panel-mounted NL8 and 5-pin XLR connectors for speaker-level audio and power/limit LEDs, respectively. Cables are available in a range of lengths to suit the specific install.
The primary application of the SCM105AC and SCM105AiWC Pro studio monitors is as a centre channel in 5.1, 7.1 and immersive audio applications such as Dolby Atmos. However, the performance is not application/channel specific, and both new products can be used as left/right stereo pairs or as surround channels, should the cabinet format be the best solution for a given room or project.
The two new centre channel monitors are ideally matched to the ATC SCM50/100/110/150 studio monitors via shared technology, components and performance. Now, via the new compact cabinet format the benefits can be realised in a wider number of control and mixing rooms, both in recording and audio post applications.
The SCM105AC Pro and SCM105AiWC Pro are available to order now. Contact ATC or your local ATC dealer or distributor for further information.
The recommended UK retail price for the SCM105AC Pro is: £7604+ VAT.
The recommended UK retail price for the SCM105AiWC Pro is: £7604+ VAT.
The recommended UK retail price for the partnering R1-350 Pro remote amp is: £713+ VAT and relevant cables are priced according to length.
For a list of authorised international ATC distributors and dealers, and for pricing in your country/region, please see Where To Buy.
For further information on the SCM105AC Pro & SCM105AiWC Pro, please visit the Product Webpage.

Stroud, Gloucestershire, UK: ATC is proud to unveil two new flagship 15″/375mm active subwoofers — the SCS120 Pro and SCS120iW Pro — designed to elevate professional monitoring systems to new levels.

Engineered to support ATC’s larger mid-field and main monitors, these subs deliver exceptional low-frequency extension, expanded dynamic range, and seamless integration for stereo, surround, and immersive formats including Dolby Atmos. The SCS120 Pro has been designed for use free-standing, and the SCS120iW Pro includes features ideal for flush/in-wall mounting.
Building on the success of the 12” SCS70 Pro, but both models feature a new hand-built 15”/375mm sub-bass driver, developed and manufactured by ATC at their facility in Gloucestershire, England. All driver components and parameters – from the drive system to the suspension – have been precisely optimised using the latest analysis tools available, at both small and large signal level. The result is an advanced transducer that combines a powerful short-coil motor system featuring optimised airflow and cooling, with a carbon-paper composite cone, resulting in deep, clean bass from 120Hz down to below 20Hz — with minimal distortion and maximum impact.
The SCS120 Pro subwoofers deliver an extended low-frequency response without complex electronic equalisation or processing, instead employing the more elegant combination of exceptional transducer engineering and a marginally larger cabinet volume. Such simplicity reduces phase shift and group delay, aiding the integration of the sub with the partnering monitor loudspeakers. Ultimately, it delivers a more balanced and coherent experience for the listener, combining an extending low-frequency response with outstanding clarity in the upper bass.

Both new subwoofers are powered by a 300W class AB amplifier, hand-built and optimised for fast, dynamic response. Versatile connectivity & control includes balanced stereo inputs, balanced (full-range) outputs, and analogue 4th order Linkwitz-Riley filters with multiple crossover options — including an industry-standard 80Hz setting and bypass setting for external processing. A polarity switch, variable phase control, and stepped attenuator allow precise system tuning. For added convenience, the amp features mute control via footswitch, with daisy-chain capability for linking multiple subs.
The SCS120iW Pro (In-Wall) variant offers all the above-mentioned performance but is optimised for flush in-wall mounting, featuring a shallower cabinet, and recessed rear input connector panel, maximising floor space. The accompanying R1-300 Pro remote-mounted 7U/19” amplifier offers the user the flexibility to install the amplifier in a suitable wall close to the subwoofer, in a control room rack, or in a machine room, with connections made via NL4 speaker and 5-pin XLR cables.

These two new subwoofers are the perfect match to the ATC SCM100/110/150A Pro studio monitors and scale effortlessly to larger systems featuring the SCM200/300A Pro main monitors. Multiple subs can be employed to elevate performance and to fill larger rooms.
Surround and Immersive Audio formats such as Dolby Atmos can be demanding of subwoofers, and these two new designs both offer significant performance gains over the smaller ATC SCS70 and the outgoing SCM0.1/15.
Thanks to employing advanced transducer and amplifier technology, the new SCS120 and SCS120iW Pro subs offer increased dynamic range and low frequency extension, strengthening the upper range of ATC’s Professional Product line. They offer improved subwoofer solutions to users of mid-to-large format monitors and/or to those working in larger control rooms. The increased dynamic range on offer is particularly useful in in immersive audio and post-production applications where low frequency effects (LFE) content places large demands on subwoofers.
The SCS120 Pro and SCS120iW Pro are available now.
The recommended UK retail price for the SCS120 Pro is: £4575+ VAT.
The recommended UK retail price for the SCS120iW Pro is: £5408 + VAT (inc. R1-300 Pro remote amp, excluding cables).
Contact your local ATC dealer or distributor to arrange a demonstration.
For a list of authorised international ATC distributors and dealers, and for pricing in your country/region, please see Where To Buy
For further information on the SCS120 Pro & SCS120iW Pro, please visit the Product Webpage.

The 2-way SCM20ASL continues ATC’s philosophy of combining the best in-house drive units with matched on-board amplification for optimal fidelity. Uniting the benefits of compact size and wider bandwidth with the improved phase coherence, response speed and dynamics of ATC active operation, the SCM20ASL is perfected for small to medium sized listening environments. In addition, its sealed cabinet design ensures exceptionally well controlled bass even in smaller spaces and/or when located close to walls.
Key Features
Integrating a 2-way active system within a 20-litre stand-mount cabinet, the new model features ATC’s proprietary 150mm/6” ‘Super Linear’ Mid/Bass driver and 25mm/1” ‘S-Spec’ dual-suspension tweeter, powered by on-board class A/B MOSFET power amplifiers capable of delivering 200W and 50W continuous power to the bass and HF drivers respectively. The performance and power output of each power amplifier is carefully tailored to driver demands and the musical elements they reproduce.
The Mid/Bass driver employs a large 75mm/3” voice coil and short-coil (long-gap) motor assembly featuring ATC’s proprietary ‘SL’ motor technology, which reduces distortion from the upper bass into the midrange. ATC’s 25mm ‘S-Spec’ soft-dome tweeter features a dual-suspension and very high energy 2.1 tesla motor combining to deliver an extended response well beyond 20kHz with the exceptional reproduction of fine detail.
Crossovers are active, analogue 2nd order Linkwitz-Riley operating at line-level for maximum efficiency, while an all-pass filter is included to optimise the phase response through the crossover region, resulting in far improved tonal balance and imaging.
Input to the loudspeaker is via balanced XLR, located on the rear panel and there are user controls for input sensitivity and low frequency shelf cut and boost. The input sensitivity control allows the user to tailor the input gain to suit their source and pre-amplifier combination for more consistent performance. The low frequency shelf control gives the user the option to subtly adjust the bass response to suit their room.
The SCM20ASL cabinet features a combination of bracing for stiffness and damping to supress resonance and is available in a wide range of real wood veneers, painted satin finishes and high gloss lacquers. Standard finishes include Cherry, Black Ash, Walnut and Oak veneers, Satin Black or Satin White paint. Premium finishes include Rosewood, European Crown Cut Walnut, Burr Magnolia, Pippy Oak veneers. The speaker is supplied with a removeable grille, wrapped in black acoustically transparent cloth.
Why Active?
In the quest for the best possible performance, all high-quality loudspeaker system manufacturers will have struggled with the limitations of passive crossover networks. Even though excellent results are possible from passive systems, a multi-way loudspeaker system will only realise its true potential if implemented as an active design. There are a few practical and economic reasons why passive speakers have remained so popular in the Hi-Fi market but, focusing on objective performance alone, active loudspeaker systems offer the following advantages:
The new SCM20ASL will make its global debut at the Axpona show in Chicago, from Friday April 11th.
Availability: April 2025
Typical UK Retail Prices (per pair inc. VAT):
Standard Finishes: £6495
Premium Finishes: £7295
Add for High Gloss Lacquer over Veneer: £1595
Piano Black or White: £7845
Other / Custom finishes: P.O.A.
For more information, please visit the SCM20ASL webpage.
For pricing and availability in your country/region, please contct your local dealer/retailer. You can find your nearest via the ‘Where to Buy’ section of our website.