ATC SCM40 Active Loudspeaker

Engineered for Excellence

• New ATC designed and built dual suspension 25mm soft dome HF unit with precision alloy wave guide.
• ATC 75mm Soft Dome mid-range driver.
• ATC 164mm short coil bass driver.
• All drive units incorporate massive optimised motor assemblies.
• On-board grounded source 242 watt Class A/B Tri-amplifier.
• Active crossover filters and overload protection.
• Veneered Finish Options – Cherry, Black Ash.
• Painted Finish Options – Satin Black, Satin White.
• 6 year warranty.

Dual Suspension Tweeter

ATC’s approach to tweeter design is unique in the marketplace. By incorporating a secondary suspension component the moving assembly is naturally constrained to travel only in the axial direction. The result is a design that suppresses rocking modes and ensures lower distortion levels. The additional stability that this approach provides over more conventional tweeter construction negates the need for ferro-fluid (usually required for cooling, damping, etc). As a consequence, the magnetic gap can be made smaller allowing ATC tweeters to not only perform optimally, for longer, but also offer improved power handling over conventional designs.

While this unique tweeter topology offers superior performance, the resultant increased moving mass and overall complexity must be offset and overcome by the perfect alignment of all components. Consequently manufacturing and assembly demands exceptional care and accuracy — a level of capability that ATC excels at.

The additional stability over other designs negates the use of ferro-fluid, so ATC tweeters perform at their best for longer, and the magnetic gap can be made smaller, further improving power handling.