The QSC AD-S.SUB is a compact 6.5-inch dual voice-coil surface-mount subwoofer designed to deliver deep, controlled bass in discreet commercial audio installations. Built for seamless integration across the AcousticDesign™ Series, it allows flexible mix-and-match pairing with any AD Series satellite speaker for scalable SUB/SAT system designs.

Its dual voice-coil design improves thermal performance and output capability, while support for both 70/100V transformer operation and low-impedance mono or stereo configurations ensures versatile system compatibility. Four built-in high-pass filtered outputs simplify satellite connections, and locking Euroblock connectors provide secure, reliable installation.

With reversible V-wall mounting hardware, a clean enclosure design, and available Intrinsic Correction™ voicings via compatible Q-SYS and MP-M platforms, the AD-S.SUB delivers professional-grade low-frequency performance in a compact, installation-friendly format.