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ATC 'SCM25A Pro Mk2': The 3-Way Compact Active Studio Monitor as Evolution of Its Popular Predecessor
ATC 'SCM25A Pro Mk2': The 3-Way Compact Active Studio Monitor as Evolution of Its Popular Predecessor
ATC 'SCM25A Pro Mk2': The 3-Way Compact Active Studio Monitor as Evolution of Its Popular Predecessor
The British specialist manufacturer of loudspeaker drive units and complete sound reproduction systems ATC (Acoustic Transducer Company) has recently released 'SCM25A Pro Mk2' — The 3-Way high-performance compact active monitor maintaining the core of its popular predecessor from which it evolved while refining key areas of design and performance, including replacing the original SCM25A Pro's OEM (Original Equipment Manufacturer) high-frequency driver with the specialist British manufacturer’s own 'S-SPEC' SH25-76S premium soft-dome, dual-suspension tweeter developed with a no-compromise engineering approach.
All new to the SCM25A Pro Mk2 is its high-frequency driver, ATC having replaced its popular predecessor’s OEM part with its own 'S-SPEC' SH25-76S, manufactured in-house with a no-compromise engineering approach (as fitted to the two-way SCM20A Pro and larger, three-way SCM45A Pro, SCM50A Pro, SCM100A Pro, SCM110A Pro, and SCM150A Pro models since 2015). This driver is a 1"/25mm soft-dome design, handling high frequencies above 3.5kHz, but, unlike almost any other 1"/25mm tweeter on the market, it employs both an upper and lower suspension to better support and control the coil and dome motion. This, therefore, makes for a narrower magnetic gap, resulting in higher magnetic flux, which, in turn, extends the high-frequency response and reduces 3rd harmonic distortion.
Mid- and high-frequency elements are supported by a 6.5"/164mm proprietary bass driver that takes care of the SCM25A Pro Mk2's low frequencies below 380Hz. This features a carbon-loaded paper cone while the driver motor employs a short-coil operating in a long magnetic gap, helping to minimize distortion generated by drive force modulation. Additionally, a large 2"/50mm voice coil and generous excursion capability ensure outstanding dynamic range.
Rear-mounted, a three-way class A/B amp actively drives the SCM25A Pro Mk2 with each drive unit having its own dedicated power amplifier. Audio balanced input is via a rear panel-mounted three-pin XLR and power is via an IEC (International Electrotechnical Commission) mains power inlet. Input sensitivity and Bass boost controls are also accessible to the user. Ultimately, crossovers are 4th order Linkwitz-Riley and all-pass filters are included to optimize the phase response through the crossover regions, improving the tonal quality and imaging, as well as on- and off-axis frequency response. Furthermore, FET (Field-Effect Transistor) peak limiters are included to reduce amplifier 'hard-clipping', while POWER/LIMIT is indicated — 'on' and 'active' — by a front panel-mounted bi-colour LED. The amplifier is designed and manufactured in-house, just like the speaker drive units.
Price £7,075 GBP (per pair, plus VAT)
*For availability and pricing internationally, please visit the ATC website to find a distributor: here
For more information on 'SCM25A Pro Mk2'
About 'ATC' (www.atc.audio/professional/) Formed in 1974 by Billy Woodman to manufacture custom drive units for the professional sound industry, ATC (Acoustic Transducer Company) is a specialist British manufacturer of loudspeaker drive units and complete sound reproduction systems, including all associated electronic equipment. Such systems and components are designed and built in-house to achieve levels of performance far in excess of the industry norm by adopting a thoroughly professional engineering approach to the issues of basic design, materials science, and production technology. The company’s groundbreaking soft-dome mid-range driver technology was originally developed in 1976, revolutionizing studio monitoring in the process before becoming recognized as the ultimate mid-range transducer for both domestic and professional applications. After a contract with Danmarks Radio — translating to the Danish Broadcasting Corporation — for an active portable monitor provided the opportunity to integrate the company’s then-new SCM50 and SCM100 speakers with a Tri - AmpPack and electronic crossover to create the industry-standard SCM50A and SCM100A as the first reliable and accurate active systems, that technology is still featured in eight of its monitor models today. The SL (Super Linear) technology found in its Professional Series Monitor bass drive units is arguably the most significant development in transducer design in the last 15 years, reducing 3rd harmonic distortion by 10-15dB between 100Hz and 3kHz, epitomizing the company’s commitment to sound quality. Indeed, its accuracy in reproducing piano and male vocals remains unique. Ultimately, the company’s commitment to multi-channel mastering and its direct involvement with leading players in the professional audio industry — including Sony Music and Telarc — has readily resulted in its products being installed in some of the world’s most prestigious multi-channel studios and auditoria.
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