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From Blackbird Studios in Nashville to EastWest in Los Angeles and around the world, ATC Loudspeakers have been trusted by top-tier studios for more than 50 years. Founded in Gloucestershire, England, by Australian Engineer Billy Woodman, ATC designs and builds all of its drivers, amplifiers, and cabinets in-house to ensure flawless performance and quality control—no OEM components, outsourced manufacturing, or other corner-cutting.
“Every ATC speaker is handmade in England in the Cotswolds,” says Stephen Earnest, Head of Pro Audio at TransAudio Group. “What really sets ATC apart is that we also design and hand-build our own drivers, right down to winding the voice coils. Our soft-dome midrange driver is a great example, using a dual-suspension design to precisely control movement, reduce distortion, and maintain clarity even at high listening levels. It’s much more labor-intensive, but that attention to detail is fundamental to ATC’s philosophy. Whether it’s an SCM12 or an SCM300, the same people, craftsmanship, and engineering standards go into every speaker.”
Today, ATC’s Pro line includes more than a dozen models covering a variety of sizes and form factors ranging from large-format in-wall monitors to compact desktop-friendly speakers. But if they’re all made with the same components and quality, how do you choose which model is right for your needs? It starts with understanding the driving philosophy behind ATC.
Design Philosophy
“Our mission is based around getting the lowest distortion and highest resolution that we can possibly get out of a speaker,” says Earnest. “When Billy started the company in 1974, he had been a transducer designer for many years, but he didn't feel like there was a transducer that accurately represented the original source. So he created a driver, then a mid-dome, and the rest is history; but all of that was based around the philosophy of getting distortion as low as possible.”
To achieve the lowest distortion and highest resolution possible, ATC uses a combination of patented driver technologies, high-performance Class-AB amplifiers, and optimized cabinet design. But unlike other modern speaker brands, they don’t rely on digital signal processing (DSP) to “correct” their speakers—instead, they believe that a quality speaker in a well-treated room is all you need.
“Our mission at ATC is to offer the best speaker with the lowest distortion possible, which allows our users to make informed and creative decisions, and we believe that the way to do that is to use a Class-AB design with no DSP,” he continues. “We always recommend spending time to make sure your room is the best it can be. The better the room is, the better result you’re going to get from any speaker, no matter what manufacturer.”
With that in mind, let’s get down to it. Here are the best ATC speakers and subwoofers for small, medium, and large studios; mastering; and immersive audio.
Best ATC Monitors for Mid-Size Rooms
ATC’s most popular Pro speaker is the SCM25A MK2, a three-way active monitor featuring a 6.5-inch woofer, soft dome midrange driver, and dual-suspension tweeter for extended high-frequency response with vanishingly low distortion. This is what ATC recommends for mid-sized studios that need a balance of clarity, bass extension, and output.
“We're very thankful and humbled by the fact that you can go to the majority of the commercial studios in the world and you'll find at least one pair of ‘25s, because it's really become an industry staple for near field three-way monitoring,” Earnest says. “It’s extremely accurate, translates well, and has become a must-have speaker for many engineers around the world. Because of that consistency in translation, you can have much more confidence your mix will stand up at home or anywhere else you listen.”
The SCM25ATH variant features a “top hat” mount on the bottom, making it suitable for wall mounting in surround and immersive setups. The SCM25Ai provides even more installation flexibility with a steel reinforced cabinet, sturdy mounting points for ceiling and wall installation, and a remote rackmount amplifier. And if you need a little more output, the SCM45 adds an additional 6.5-inch woofer and a stronger amplifier, allowing the speaker to handle higher levels and bass-heavy mixes without breaking a sweat.
Best ATC Monitors for Large Rooms
Big studios need big speakers to provide enough output and coverage to make the whole room a “sweet spot” where everyone can hear the music with equal clarity. From Hollywood to Nashville and beyond, you’ll see ATC’s large-format monitors in some of the biggest studios in the world.
The most popular model is the SCM300ASL, a massive speaker featuring dual 15-inch Super Linear (SL) woofers paired with ATC’s signature Super Dome midrange driver and soft dome tweeter. Typically, these are soffit-mounted, meaning they’re fitted into the control room walls. In addition to saving space, having the front baffle flush with the wall provides better dispersion characteristics than a freestanding speaker.
“There's an install version for pretty much every speaker in the Pro line, but for soffit mounting, it's usually 300s or 110s,” says Earnest. “The 110s are really great speakers, and we're seeing a lot more studios put them in. Often, they'll be paired with a pair of single subs like the SCS120, or a dual version of that, which would be the SCS240.”
The SCM110ASL shares the same driver layout as the 300, but with 9-inch woofers in a more compact cabinet suitable for medium-large studios. In between, there’s the SCM150ASL with a single 15-inch woofer as well as the SCM200ASL, which features dual 12-inch woofers. All provide ultra-linear sound with low distortion, so the choice really comes down to room size.
Best ATC Monitors for Small Rooms and Home Studios
Most of ATC’s monitors are medium-to-large three-way designs, but what if you need something a little more compact? Enter the SCM12, a two-way passive monitor built around a 6-inch woofer and 1-inch tweeter. The SCM12i (“i” for “install”) features rear mounting brackets and a sturdy metal eyelet for ultra-secure wall and ceiling mounting in surround and Dolby Atmos setups.
“It's often kind of overlooked in the ATC line, but the SCM12 is an incredible two-way passive design that works well in small studios, on meter bridges, and for integration,” Earnest explains. “It's not a budget entry-level speaker; it's still made in the same factory with the same parts and it still follows ATC's philosophy of lowest distortion and highest resolution. Paired with the proper amp, it's very punchy and has good translation.”
If you want even more clarity and power without increasing the footprint, the SCM20 is a similar two-way design built with ATC’s Super Linear mid/bass driver for extreme accuracy and low distortion at higher levels. This compact powerhouse comes in two versions: the passive SCM20PSL and the active SCM20ASL.
Best ATC Monitors for Mastering
Mastering engineers are especially particular about their monitors, and ATC’s focus on maximizing accuracy and minimizing distortion has made them a go-to brand in the mastering world. But if all ATC monitors follow the low distortion/high resolution philosophy, which is best for mastering?
“The majority of mastering engineers prefer to start at our SCM50s and move on up from there depending on room size,” according to Earnest. “That was Billy's favorite speaker and the first that he created. It's incredibly low distortion and it allows you to have a more of a clinical view of whatever material you're working on. Mastering engineers love that because it allows them to work at low or high volume and nothing changes.”
Why the SCM50? It has to do with ATC’s Super Linear (SL) drivers, a patented technology only found in the company’s largest models. “In the mid-to-late ‘90s, Billy came out with a driver design called Super Linear technology that provides even lower distortion for the low-end woofer,” Earnest explains. “It's specifically found in SCM50 and the rest of the line, all the way up to the 300s. We see a lot of SCM150s and SCS120 subs going into mastering rooms because they pair really well together and offer a highly detailed look into the mix while still extending low enough at low and high volume that the engineer can make accurate decisions.”
Best ATC Subwoofers
Subwoofers can be a tricky topic. Is it better to choose the biggest monitors with the most low-end extension or smaller speakers paired with a sub to extend their low-frequency response? For ATC, it’s all about achieving the cleanest low-end performance. If you work in bass-heavy genres like modern pop, hip hop, or R&B, a subwoofer not only gives you greater low-frequency extension but also lets you crank up the volume without a hint of distortion.
ATC currently offers five different subwoofer models, but the most popular are the 12-inch SCS70 and the 15-inch SCS120. “The SCS70 was built from the ground up to be a proper subwoofer with an amp design that pairs well with the ATC line,” says Earnest. “We've put those in a lot of different rooms with 25s, 45s, 12s, 50s, and 110s, and it's been an incredible sub. We also came out with the SCS120 last year, which is the 15-inch version, and that just allows a little bit more low-end extension and output. It's an incredible subwoofer design that shares the same low-distortion philosophy and works extremely well in both freestanding and install applications.”
Both models are available in dual-driver variants, called the SCS140iW and SCS240iW respectively. The “iW” stands for “in-wall,” as these models are specifically designed for soffit mounting with flat front baffles and remote amplifiers.
Best ATC Monitors for Immersive Audio
The rise of immersive formats like Dolby Atmos and Sony 360 Reality Audio has caused many studios to upgrade their monitor systems. From streamlined 5.1.2 configurations to full-blown 9.1.6 systems like Blackbird’s Studio C, ATC monitors are an excellent choice for any immersive studio.
Immersive speakers have to be every bit as accurate as any studio monitors, yet they also need to be installed on walls and ceilings, often in tight spaces. While ATC already offers install versions of almost every speaker, their Studio Surface Monitors (SSM) line is specifically geared toward immersive and surround applications.
The SSM12 and SSM25 are essentially modified versions of the SCM12 and SCM25 Mk2, featuring the same drivers and specifications but housed in shallower cabinets that are more friendly for wall and ceiling installation. All SSM models come with special mounting brackets, and the corresponding ATC R4 amplifier provides four channels of amplification.
“For years, we've had integrators and studio designers saying, ‘We would love a shallow ATC that we can soffit in smaller spaces or flush mount on the wall or ceiling and save a little space,’” says Earnest. “ATC spent an immense amount of time making sure that they sound like their corresponding speaker, so when you get an SSM12—and install it properly—It's going to sound very, very close to an SCM12, and it’s the same for the 25.”
Vintage King offers a number of preconfigured ATC studio monitor bundles for immersicing mixing.
Which ATCs Are Right for Your Studio?
Whether you work out of a large commercial studio, a humble home studio, a dedicated mastering room, or a post-production facility specializing in Dolby Atmos, ATC has a solution for you. From the popular SCM25 MK2 to the massive SCM300ASL and the compact SCM12, all ATC monitors follow the same philosophy of low distortion and high resolution, so you know you’ll get reference-quality sound no matter which model you choose.
Talk to a VK Audio Consultant today for help narrowing down the options and figuring out the best ATC monitors for your needs. We’ll work with you all the way from pricing out a system to installing it in your studio.
