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Average Price: $12,990
High-end/Boutique
$300
$801+
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High-end
Price History
Based on price data from 1 merchant for "ATC Loudspeakers SCM45A Pro Studio Monitor". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
In the world of studio monitoring, the ATC SCM45A Pro Studio Monitor stands as a beacon of precision and clarity. Designed for discerning audio professionals, this active 3-way monitor ensures your mixes translate flawlessly beyond your studio walls. With its custom-crafted drivers, the SCM45A Pro offers an immersive listening experience that captures every nuance of your sound. The 1" dual-suspension Super Tweeter, 3" soft-dome midrange driver, and dual 6.5" short-coil carbon-paper cone bass drivers are powered by a discrete MOSFET Class A/B tri-amp pack, delivering precise sound reproduction across the entire frequency spectrum.
Handmade in the U.K., these monitors are tailored for those who demand the utmost in audio fidelity. The ATC SCM45A Pro is not just a tool—it's a trusted partner in your creative process, capable of handling the most demanding professional environments. Whether you're engaged in critical near-field listening or LCR surround monitoring, these monitors provide a soundstage that is both expansive and detailed. With phase-compensated electronic crossovers, they maintain coherence and reduce distortion, ensuring that what you hear is the purest representation of your mix.
Key Features:
- Active 3-way design with custom-crafted ATC components
- 1" dual-suspension Super Tweeter and 3" soft-dome midrange driver
- Dual 6.5" short-coil carbon-paper cone bass drivers
- Discrete MOSFET Class A/B tri-amp pack
- Frequency Range: 70Hz-17kHz (+/-2dB)
- Crossover Frequencies: 380Hz, 3.5kHz
- Amplifier Output Power: Bass 150W rms, Mid 60W rms, High 25W rms
- Input Sensitivity: 1V rms (ref. full output)
- ATC's 6-year limited warranty
Product specs
| Powered | Yes |
| Power Configuration | Tri-amped |
| Quantity | Pair |
| LF Driver Size | 2 x 6.5" (Low), 3" (Mid) |
| LF Driver Type | Cone (Low), Dome (Mid) |
| HF Driver Size | 1" |
| HF Driver Type | Dome |
| LF Driver Power Amp | 150W RMS (Low), 60W RMS (Mid) |
| HF Driver Power Amp | 25W |
| Total Power | 235W |
| Frequency Range | 45Hz-25kHz (-6 dB) |
| Crossover Frequency | 380Hz, 3.5kHz |
| Maximum Peak SPL | 112 dB |
| Input Types | 1 x XLR |
| Enclosure Type | Ported |
| Height | 13.9" |
| Width | 23.6" |
| Depth | 14.8" |
| Weight | 79.2 lbs. |
FAQs
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What are the standout features of the ATC SCM45A Pro Studio Monitor's sound quality?
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The ATC SCM45A Pro features a tri-amped design with dual 6.5-inch CLD bass drivers, a 3-inch Super Dome midrange, and a 1-inch S-Spec tweeter, providing a wide frequency response from 45Hz to 25kHz. This configuration delivers precise sound reproduction ideal for critical listening in professional studios.
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Is the ATC SCM45A Pro suitable for mixing and mastering?
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Yes, the ATC SCM45A Pro is designed for professional studio environments, offering high accuracy and detailed sound reproduction, making it well-suited for both mixing and mastering applications.
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What type of power configuration does the ATC SCM45A Pro use?
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The ATC SCM45A Pro utilizes a tri-amped power configuration, with separate amplifiers for the low, mid, and high-frequency drivers, totaling 235W of power for optimal performance and clarity.
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How should the ATC SCM45A Pro Studio Monitors be positioned for optimal sound?
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For optimal sound, position the ATC SCM45A Pro monitors to form an equilateral triangle with the listening position, ensuring the monitors are at ear level and symmetrically placed in the room to minimize reflections and enhance stereo imaging.
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What is the maximum SPL of the ATC SCM45A Pro Studio Monitors?
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The ATC SCM45A Pro Studio Monitors can reach a maximum peak SPL of 112 dB, providing ample headroom for dynamic range in professional audio applications.
Videos
PresentDayProduction
Once You've Heard It You Can't Un-hear it! | ATC SCM45A Studio Monitors
Reviews
PROS
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Exceptional clarity and transparency in sound
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Superior midrange definition
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Precise and informative low-end, even without sub frequencies
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Produces a vast amount of sonic information without hype
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Used by top engineers worldwide, suitable for pro-audio and hi-fi communities
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Enhances mix quality noticeably after short usage
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Fast and tight transient response
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Non-fatiguing tweeter for extended mixing sessions
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Excellent imaging capabilities
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Improves mix translation across different systems
CONS
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Requires additional subwoofer for optimal performance
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Manufacturing facility less impressive than competitors (no impact on sound quality)
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about ATC Loudspeakers SCM45A Pro Studio Monitor.
User experience
Comparisons
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Some users find ATCs to be more expensive relative to their perceived improvement over Neumann KH 310A, which they found superior in a local store test.
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Some owners prefer Dutch & Dutch 8Cs over ATC50s, praising their comprehensive sound that matches ATC's mid-range clarity with superior overall performance.
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Users suggest that Neumann KH420s are increasingly chosen over ATCs for soffit mounting, emphasizing their transparency and integration in studio setups.
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Use cases and applications
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ATC monitors are noted for their honesty, potentially highlighting flaws in recordings that may make familiar tracks sound worse, which some users find beneficial for critical listening.
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ATCs are frequently used in top-tier studios, noted for revealing production flaws, making them popular among professionals seeking accuracy.
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Features and functionality
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It’s suggested that three-way monitors like the SCM45A Pro are suitable for 5 feet listening distance, ensuring a cohesive sound rather than hearing separate drivers.
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Critic Reviews
5.0 out of 5
Based on 0 Reviews and 2 Ratings
Artist usage
Add artist
Deadmau5 installs 7 ATC SCM45 A as an surround System in his new Mau5 Studio "Got the 7 surround channels in... Feels good. 4 more to go + an RMU and I'm good to go!"
In the video titled "INSIDE: Charlie Puth Home Studio" by Caleb Simpson on YouTube, at the very beginning (0:00), a pair of ATC Loudspeakers SCM45A Pro Studio Monitors is visibly placed on either side of Charlie Puth's work desk.
Lvl1 Blood Dragon @DudeHazard · Nov 18, 2017 What are those big speakers ?
Richard Devine @RichardDevine Replying to @DudeHazard ATC SCM45A’s
In a video on VK, Lorn's studio setup features the ATC SCM45A Pro Studio Monitor prominently placed above the rack, indicating its role in his production environment.
Blawan uses the ATC SCM45A Pro Studio Monitors, as shown in a user-uploaded photo on Archello.
Sabrina Carpenter is documented using Jack Antonoff's ATC Loudspeakers SCM45A Pro Studio Monitor, as evidenced by a photograph of her in the studio with the equipment.
Anyma featured the ATC SCM45A in a studio setting, as evidenced by a post on their official Instagram account.
Emile Haynie uses the ATC SCM45A Pro Studio Monitor while producing for Florence + The Machine, as shown in a user-uploaded photo.
In this article on the official ATC website, it is confirmed that in his studio, Mat Mitchell uses the ATC Loudspeakers SCM45A Pro Studio Monitor.
I’m reacting to the mix and making choices much more quickly. Any problems are instantly apparent – it’s like, ‘oh, that’s out of phase’ or ‘that needs to come down 1.5dB.’ Plus, it’s more exciting. Once I have things is a good place, it’s fun to turn it up because the ATC’s sound so great! The imaging is wide and precise. And of course, as advertised, the ATCs translate perfectly. Every mix sounds just right on my home stereo, in my car, on my phone, and anywhere.
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use ATC Loudspeakers SCM45A Pro Studio Monitor, it is most commonly used with the following gear.
Community setups
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