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ATC Loudspeakers SCM25A Pro Compact Active 3-Way Monitor - Pair

Compact, active three-way monitor pair with custom-designed 3” mid-range driver designed for near or mid-field monitoring

Product Description

The ATC SCM Series are the first professional studio monitors to feature a custom-designed 3” mid-range driver for enhanced detail and clarity. The ATC SCM25A Pro also features a 7” bass driver to deliver an extended low frequency response. Designed for near or mid-field monitoring, the SCM25A Pros are perfect for professional producers, engineers and artists.

The SCM25A Pro is the smallest in the SCM Series and features a 25 mm neodymium soft dome tweeter, a hand-built 3” soft dome mid driver, and a hand-built 7˝ carbon-paper cone bass driver. The built-in 235 W class A/B 3-way amplifier delivers a crystal-clear frequency response even at high volumes. SCM Series monitors undergo individual frequency, gain and phase optimization at the ATC manufacturing facility.


Unlike most studio monitors, the SCM Series monitors aren’t going to make your music sound better, they’re going to point out every little flaw in your mix, and that’s the point. Hi-fi speakers are great for listening to records, but when you’re actually making records you need a neutral monitor that reveals as much information as possible.

Speakers with hyped lows and highs cause engineers to create inverse mixes that are weak and dull. Because SCM Series monitors offer a flat, neutral frequency response, you can make more informed decisions and create better mixes faster.

Most two-way speakers place the crossover frequency between 1.5 kHz and 2 kHz which often creates an unbalanced midrange, resulting in a lack of clarity. ATC SCM Series monitors feature a custom 3” driver that focuses on 380 Hz - 3.5 kHz, allowing you to monitor your midrange with more accuracy.


The ATC SCM Series offers high-performance in the most compact form possible. While SCM Series monitors are right at home sitting on the meter bridge in a recording studio, they’re equally at home in many other settings, such as post-production houses or rack-mounted in broadcast studios.


  • 25 mm soft dome tweeter
  • ATC hand built 2"/75 mm soft dome mid driver
  • ATC hand built 7"/175 mm carbon-paper cone bass driver
  • On board 235 W class A/B three channel amplifier
  • Compact size with high output and low cut-off frequency
  • 19" rack mountable
  • 6-year warranty


  • Drivers: HF 25 mm soft dome, Mid 75 mm soft dome, LF 164 mm short-coil carbon paper cone
  • Amplitude Linearity (±2 dB): 74 Hz - 17 kHz
  • Cut-off Frequencies (-6 dB, free-standing): 47 Hz - 22 kHz
  • Dispersion: ±80° Coherent Horizontal, ±10° Coherent Vertical
  • Max Continuous SPL (1 meter): 109 dB
  • Audio Input: Rear panel mounted female XLR (pin 2 +)
  • Input Sensitivity: 1V rms (ref. full output)
  • Input Sensitivity Trim: 0 dB to -6 dB/1 V – 2 V (continuously variable via rear panel trimmer)
  • Input Impedance: Balanced > 10 kΩ
  • Amplifier Output Power: Bass 150 W RMS, Mid 60 W RMS, High 25 W RMS
  • Crossover Frequencies: 380 Hz & 3.5 khz
  • Crossover Filters: 4th order critically damped with phase compensations
  • Low Frequency Boost: 0 dB to +3 dB at 40 Hz (continuously variable via rear panel trimmer)
  • Overload Protection: Active FET momentary gain reduction
  • Dimensions (H x W x D): 264 x 430 x 369 mm (10.4˝ x 16.9˝ x 14.5˝); Handles add an 39 mm/1.5 ″ to depth.
  • Weight: 30 kg / 66 lb (per cabinet)

Product Specifications

Condition New
Length 14.5 in
Width 16.9 in
Height 10.4 in
Unit Weight 66 lb
Active or Passive Active
Digital I/O No
Monitor Application Mid-Field
Speaker Configuration Three-Way
Driver Sizes HF: 25 mm soft dome / MF: 75 mm soft dome / LF: 164 mm short-coil carbon paper cone
Number of Speakers Pair
Input Connectors Analog XLR
Amp Wattage Bass: 150 W RMS / Mid: 60 W RMS / High: 25 W RMS
Impedance Input: >10 kOhms balanced
Frequency Range 47 Hz - 22 kHz
Max. SPL 109 dB @ 1 m

Product Reviews

5 out of 5 stars.
Review Count (22)

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I manage Blackbird Audio Rentals and would love to give a review based on personal use. Still, I can't because every A-List engineer and producer in town has the ATCs constantly booked and rented on their projects, so I never have them here to listen to.

By Blackbird S on May 9, 2023

These speakers are a dream come true. Immediately my work began to translate better. With my old set of monitors, I had to work at much higher volumes to get any sort of accuracy in the low end and top. But what makes these so special is that at any volume, every part of the spectrum is accurately represented. Punchy at any volume. Don't expect the fun, explosive bass response like PMC's, but the "holographic" auditory sensation that these provide is second to none. Quality like this will never be cheap, but it will always be worth it.

By Joe B on November 4, 2022

Not in a million years would I have ever dreamed I would spend south of 10k on a set of monitors for my project studio, but I did. To complete my new hybrid setup I took the plunge. A couple factors that went into my decision to choose these.
1) reading reviews, listening to what others have to say
2) the companies world wide reputation.
3) no imported parts, 100% manufactured in England
4) the sound, again the sound. When you sit down in the sweet spot, and these speakers are coming at you, you will feel like you have died and gone to heaven. The level of detail is very difficult to describe,
5) no DSP or computer assisted processing, just raw analog audio.
The perfect companion for my new NEVE 8424.

When considering all the amazing monitors that are out there, I would like to thank Joe Dickenson, at VK for reassuring me that I made the right discussion,

By Thomas on October 24, 2022

Excellent speakers all the way!

By Douglas G on October 5, 2022

I absolutely love my ATC speakers! I have a 7.1.4 setup with 3 ATC SCM25’s and 8 scm12i pro’s. The listening field is amazingly transparent, like you don’t feel like the sound is coming from speakers. The accuracy and detail of what I hear while working really enables me to make quick and accurate decisions. VK was incredibly helpful getting me going.

By Studio T on June 13, 2022

Excellent speakers!!! Full range with great detail across the freq spectrum. Very happy and satisfied with these speakers.

By Ken K on February 17, 2021

These speakers are life changing. They make music more fun and brutally revealing than it’s ever been. Mixing and producing on them is a joy, 10/10 would recommend anyone pick these up. It’ll be the best purchase you make.

By Braden W on February 14, 2021

Detail like I’ve never heard before. Excellent choice for my mix room.

-Steve Chadie

By Steve C on November 21, 2020

Great speakers!

By Lou P on October 31, 2020

These speakers are an amazing three dimensional experience! So glad I bought them. These will force you to create a great mix. So glad I bought them.

By Andrew G on July 2, 2020

The best purchase ever!!! Have used many and this is my forever nearfields!!! Josh you da man!!!!! Thanks for tour help!!!!

By Phil G on May 25, 2020

Great to work with. Less ear fatigue. Very clear mods and highs. Glad I bought them

By John D on January 26, 2020

The best!! Mixes go quicker hearing all of the mid-range with this 3-way speaker!!

By Stephen K on December 9, 2019

This are the truth! Replaced my Barefoot MM45's

By Mix a on November 1, 2019

Woww... My mixes got so much more sauce now! My cats love sleeping on them too!!!

By Reid S on August 12, 2019

Only mid-field speaker I’ve ever liked.

By Mt. S on April 17, 2019

Easily the best speakers in this size and price category. I listened to everything else and these speakers were the most honest and, equally important, pleasing to the ear. I won’t disparage the others by name because they are just fine and each company has their adherents. But ATC has set the industry standard.

By Woodshed R on March 10, 2019

These are the most accurate speakers on its category. The midrange tells me everything I need to know with the utmost detail. I was afraid that the low end would not be enough for my needs (mixing/mastering) but I couldn’t be happier to what the SCM25A Pro are capable of. Cheers to one of my best purchases in almost 25 years of music making.

By Lucas P on February 9, 2019

These are not overly flattering speakers. They provide the truth and are great for mixing. My biggest concern going in was the low end but there is plenty for me and my music. I would buy them again in a heartbeat.

By Daniel S on February 8, 2019


By Steve P on February 6, 2019

These are fantastic monitors that have incredible transient detail and great midrange.

By Lamar S on January 10, 2019

ATC's mid-dome midrange driver is famous for the resolution it provides. The stories are true! I upgraded to the 25's about 3 months ago and can't believe that I waited so long to do so. Before I was working on Genelec's which had quite obscured midrange detail, so I always struggled with setting the right vocal levels. These ATC's leave no stone unturned and let you know exactly what is going on. Dead flat, so not a flattering sounding speaker like some. They tell the truth for sure.

By Davey M on May 4, 2017

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How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.