ATC Announces New Monitors
Gloustershire, UK (September 8, 2014)—British loudspeaker manufacturer ATC has introduced two new reference nearfield monitors—the active SCM20ASL Pro (V2) and passive SCM20PSL Pro.
Both models feature ATC’s drive units, hand-built in its UK facility. The new SH-25-76S 25mm/one-inch soft dome tweeter, the first to be designed and built by ATC, is the result of six years of research and development by managing director Billy Woodman and R&D engineer Richard Newman.
“The design takes notes from the ATC midrange dome by utilizing a dual-suspension design, negating the requirement for Ferro-fluid, and avoiding the detrimental effects of this drying out over time, a feature considered to be of utmost importance for long term consistency,” said Woodman. The neodymium motor with heat-treated top plate reportedly provides extended frequency response (-6 dB @ 26 kHz) and low non-linear distortion. The geometry of the waveguide is designed for optimum dispersion and made from a precision-machined alloy.
The bass/mid driver used in both loudspeakers is ATC’s proprietary 150 mm/six-inch Super Linear device, constructed with a 75 mm/three-inch voice coil and a short-coil, long-gap topology.
The electronics in the active design have also been designed with an aim to reduced noise and distortion (a further -10 dB at 10 kHz) and operating temperature. The amplifier design is a revised version of ATC’s discrete MOSFET Class A/B design with 200W and 50W continuous power available for the bass and high frequency sections, respectively.
