ATC SCM-40A active floor standers are some of the finest active floor standing speakers we’ve ever heard. An excellent solution that brings power amplification into the speakers, removing the effect of the speaker cables. The ATC SCM40A speaker has three amplifiers to power each driver individually in the enclosure with a 150W module for the bass, 60W for the midrange, and a 25W amplifier for the tweeter. The top plate of the tweeter’s 1.5-tesla neodymium magnet is heat-treated to disperse heat away from the voice coil maintaining high power handling and low power compression. Featuring a 25mm soft dome HF unit and precision alloy wave guide, they have a heavy build and take advantage of ATC’s meticulous engineering and studio-proven technology.