Backdrop loudspeaker drivers image courtesy of ATC Like a surgeon's scalpel, the ATC SCM40A loudspeaker is a serious instrument, deftly cutting through sinew, fat, and bone to the heart of music with surgical precision and clarity. A three-way floor-standing model at just under 40 inches tall, it is unobtrusive and remains at the top of … Continue reading The Power and Precision of ATC SCM40 Active Loudspeakers - Are They For You?