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ATC SCM25A Mk2 6.5-inch 3-way Powered Studio Monitor Certified Open Box , $8,991.00 pair - Add to Cart Skip to Product Information

ATC SCM25A Mk2 6.5-inch 3-way Powered Studio Monitor Certified Open Box

235W Tri-amped Powered Studio Monitor with 6.5" Woofer, 3" Midrange, 1" Tweeter, Bass Boost, Input Trim, and Overload Protection (Pair)
Item ID: SCM25AMk2d8
ATC SCM25A Mk2 6.5-inch 3-way Powered Studio Monitor

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ATC SCM25A Mk2 6.5-inch 3-way Powered Studio Monitor Certified Open Box

Certified Open Box Savings!

Save $999 What is Certified Open Box?

The price below reflects your savings.

Savings: $999.00 New for $9,990.00

Handmade Studio Monitors from the UK

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Our Product Research Team

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Handcrafted in the UK, The ATC SCM25A Mk2 is a premium active studio monitor with lots to offer. This speaker boasts ATC's proprietary dual-suspension drivers, which include a 6.5-inch short-coil low-frequency driver, a 3-inch soft-dome midrange driver, and a 1-inch soft-dome tweeter. This studio monitor reproduces the 47Hz–22kHz frequency range with the utmost accuracy and clarity, and its tri-amped design, which features an integrated 235-watt Class AB amplifier, delivers an impressive 109dB SPL. The SCM25A Mk2 vaunts a cutting-edge ported enclosure for thunderous bass reproduction and a foam port bung to reduce low-frequency output in smaller listening spaces. You also get bass boost and trim controls, plus overload protection. Hear what you have been missing from your mixes with the ATC SCM25A Mk2.

ATC's proprietary handcrafted drivers

The SCM25A Mk2 comes loaded with ATC's proprietary dual-suspension drivers, all handmade and wound to exacting specifications for playback that's as accurate as possible. This powered studio monitor's 6.5-inch, short-coil low-frequency driver features a carbon-paper cone. Its 3-inch, soft-dome midrange driver tackles the 380Hz–3.5kHz frequency range. The SCM25A Mk2 also includes a 1-inch, soft-dome high-frequency driver. This tri-amplified monitor delivers 150 watts to the woofer, 60 watts to the midrange driver, and 25 watts to the tweeter. ATC's renowned low-distortion technology, apparent throughout the speaker, includes a fourth-order critically damped, phase-compensated crossover and a passively cooled, FET-limited amplifier block.

Easily tailor the speaker to your room

The audio engineers here at Sweetwater are impressed by how easy it is to tailor the ATC SCM25A Mk2 to your listening space. This studio monitor not only includes a continuously variable +6dB bass boost at 40Hz, but also a continuously variable -6dB input trim, for dead-simple low-frequency control and gain-staging. The SCM25A Mk2 also comes with a foam port bung, enabling you to attenuate the speaker's low-frequency output in smaller rooms. The port bung provides -1.5dB of attenuation, centered around 80Hz, while the monitor's output below 45Hz increases by approximately 1dB.

The legacy of ATC monitors

A young engineer named Billy Woodman spent his formative years working side by side with some of the best speaker engineers of the day. In 1974, Woodman went on to found ATC (Acoustic Transducer Company). Since then, ATC has focused on one thing: creating the most accurate monitor loudspeakers possible. If you want to make great-sounding recordings that translate to the world outside your studio, accurate monitoring is a must. You need to hear every nuance of your audio, exactly as it was recorded and mixed. ATC monitoring equipment, expertly engineered with the highest-grade components, is designed to do provide just that. How good are ATC monitors? Just ask renowned producers and engineers like George Massenburg, Chuck Ainlay, Nathaniel Kunkel, and Doug Sax. You’ll also find ATC monitors in Abbey Road Studios, Sony Studios New York, Blackbird Studios Nashville, and many more world-class facilities. Sweetwater is proud to offer you ATC’s extensive range of professional studio monitors.

ATC SCM25A Mk2 6.5-inch 3-way Powered Studio Monitor:

  • Loaded with ATC's proprietary handmade dual-suspension drivers
  • 6.5-inch short-coil low-frequency driver; 3-inch soft-dome midrange driver; 1-inch soft-dome tweeter
  • Reproduces the 47Hz–22kHz frequency range with the utmost accuracy and clarity
  • 235W, tri-amped Class AB design delivers an impressive 109dB SPL
  • 4th-order critically damped, phase-compensated crossover and a passively cooled, FET-limited amplifier block
  • Continuously variable +6dB bass boost at 40Hz provides precise low-frequency control
  • Continuously variable -6dB input trim supplies easy gain-staging
  • Cutting-edge ported enclosure ensures thunderous bass reproduction
  • Foam port bung reduces low-frequency output in smaller listening spaces
  • FET active momentary gain reduction overload/clip protection
What is Certified Open Box Gear?

At Sweetwater, we're so picky that what we call "Certified Open Box" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

Certified Open Box (also known as a demo) means we’ve had it out of the box for our YouTube channel, displayed at events, tested in our studio, or maybe it was in a customer’s hands for a few days and isn’t ‘factory fresh’ as a result. Every Certified Open Box item we sell has Sweetwater’s 2-year Total Confidence Coverage™ warranty and has been tested and verified up to ‘new’ specs by our factory-authorized technicians to make sure it’s in perfect working order before we ship it to you.

When you buy a Certified Open Box item at Sweetwater, you get:
  • 2-year Total Confidence Coverage Warranty™!
  • Products inspected and tested by our factory-authorized techs, guaranteed to function like new (or better)!
  • FREE shipping on most items
  • Equipment that will MEET or EXCEED your expectations!

Click HERE to browse our current inventory of Certified Open Box equipment. Purchasing Certified Open Box gear from Sweetwater is a smart and safe way to save!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.