New SCM7 and SCM11 now shipping


Las Vegas, NV (October 10, 2013) – Lone Mountain Audio, the U.S. distributor for ATC, Acoustic Transducer Company Consumer Hi-Fi products announces ATC’s new Hi-Fi Passive Series of its popular SCM7 and SCM11 Loudspeaker Systems, now modeled SCM7 Version III and SCM11 Version II with a new acoustic design, vertical integrated componentry, systems and stylish handcrafted curved cabinetry.

The new Hi-Fi Passive models are the first to employ ATC’s new SH25-76,
25mm soft dome tweeter, updated bass/mid drivers and crossovers housed in a new curved cabinet construction and modern design. The new cabinet design benefits acoustically and aesthetically as it is braced and laminated for high rigidity and damping, the curved enclosures in real cherry or black ash veneer also impart a strong impression of handcrafted
design quality.

ATC’s landmark SH25-76 tweeter employs a unique dual suspension system suppressing rocking modes even at high power output levels. The ATC configuration of a short edge-wound voice coil in a long, narrow magnetic gap ensures exceptionally low distortion throughout its operating band and removes the need for Ferro-fluids, which can dry out over time, compromising performance.

A complex, shaped, soft-domed diaphragm extends high frequency range and offers a smooth off-axis response. The tweeter’s 15,000 gauss (1.5 tesla) neodymium magnet has a black heat-treated top plate, which dissipates heat away from the voice coil to maintain high power handling and low power compression. A precision-machined 5.5mm rigid alloy waveguide provides optimum dispersion, a flat on-axis frequency response and resonance-free operation.

The upgraded new crossovers feature metallized polypropylene capacitors, large air cored inductors and ceramic wire-round resistors offer superior power handling and clarity. Each new model exhibits an impedance curve free from low values, presenting an easy load for amplifiers of 75 to 300 watts.


Third Generation SCM7

SCM7ATC’s SH25-76 soft dome tweeter complements the company’s highly linear 125mm mid/bass driver. It features a 45mm softdome – exceptional for its horizontal dispersion of mid-band frequencies – and a huge 3.5kg high-energy magnet system, which includes a 45mm flat wire voice coil, meticulously milled and formed by ATC. The magnet system and a carefully weighted doped fabric cone assembly contribute to the SCM7’s wide bandwidth, impressive dynamic range and convincing bass output – all from its small cabinet.

Second Generation SCM11

SCM11The new SCM11 features ATC’s SH25-76 with an ATC CLD 150mm mid-bass driver incorporating a 45mm soft dome. Constrained Layer Damping is a driver cone technology exclusive to ATC and represents a stepchange in driver-to-system performance. Advantages include reduced harmonic distortion between 300Hz and 3 kHz, an extended frequency response that eases constraints on the crossover filter slope, and improved off-axis response.

The first of new range of ATC closed-box passive loudspeakers is certain to raise the bar in performance driven bookshelf loudspeakers. Manufactured in-house, the new SCM7 and SCM11 offer the ownership of a hand-built ruggedly engineered speaker, world famous for musical accuracy and high power output. Like all ATC products, the new models are backed by a six-year warranty.