The SCM40 is ATCs lowest cost three-way speaker. It incorporates the famous ATC soft-dome midrange with the new ATC soft dome and a 6.5" woofer. The cabinet features curved sides and the speaker is a sealed box.
Drive units are made in house:
1" ATC soft dome featuring a 1.5 tesla neodymium magnet with dual suspension and no ferrofluid for long life.
World famous 3" soft dome midrange, providing low coloration, high power handling capacity and low power compression. The midrange drive incorporates a short coil / long gap configuration supported on dual suspensions.
6.5" ATC mid / woofer featuring a short coil / long gap configuration
Hi-Fi Choice Oct 2014. "Given a serious source and recording the new ATC SCM40 is superb – I know of no price rivals that give this level of accuracy, speed and insight…it’s capable of a level of transparency you normally only expect from loudspeakers at three or four times its price."