The ATC SMC 110A Pro is a compact, active three-way reference monitor. Designed with high resolution sample rates and bit depths in mind for both stereo and multi-channel applications that feature a dedicated center channel and subwoofer system, the low-profile SMC 110A comprises twin 9-inch ATC SL bass drivers, an ATC 3" soft dome mid and a soft dome one-inch tweeter. Maintaining the strict performance criteria of the taller models of ATC reference monitors, the SMC 110A offers a low profile specifically designed for better sight lines through windows and below obstructions.