Both models feature ATC’s renowned drive units, hand built in its UK facility. Of particular note is the new SH-25-76S 25mm/one-inch soft dome tweeter, the first to be designed and built by ATC, and the result of six years of research and development by Managing Director Billy Woodman and R&D Engineer Richard Newman.
“The tweeter is designed and built with the same no-compromise philosophy as all other ATC drive units,” notes Newman, before continuing: “The design takes notes from the highly-regarded ATC midrange dome by utilising 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 longterm consistency.” The massive neodymium motor with heat-treated top plate is optimised to ensure an extended frequency response (-6dB @ 26kHz) and low non-linear distortion. The geometry of the waveguide is designed for optimum dispersion and made from a precision-machined alloy so that the entire structure is extremely rigid and free from resonances.
The bass/mid driver used in both loudspeakers is ATC’s proprietary 150mm/six-inch Super Linear device. Constructed with a 75mm/three-inch voice coil and a short-coil, long-gap topology, it combines the high-power handling and low-power compression usually only found in large, high-efficiency systems with the fine resolution and balance of modern highfidelity systems. Unique to the drive unit is ATC’s Super Linear technology, which, by employing specialist materials in the magnetic circuit, reduces third harmonic distortion in the lower midrange.
ATC have released the second edition of the SCM20A SL loudspeaker. The new ATC SCM20S SL Pro MK2 feature a stylish new look but still retain the excellent quality that we come to expect from ATC loudspeakers.
The low frequency section woofer has a 150mm bass cone and a grafted 75mm soft dome for improved mid range. The tweeter of the ATC SCM20PSL are ferro fluid free so will last a lifetime of listening.
A built-in high quality amplifier supplies the low frequency woofer with 200W and the high frequency tweeter with 50W both with just 1% THD.
ATC SCM20P SL Pro
The brand new ATC SCM20P SL PRO features the same construction as the SCM20A SL but in a passive design. The rear on the monitors features a tri-wire connection panel which allows for seperate amplification of the bass, mid and high frequency drivers.ATC Speakers are found in some of the leading studio's all around the world