UPDM-Q3 | Lightweight 1U 4-Channel Class-D Power Amplifier, 4 x 1150W at 4Ω, Built-In LPF for PA, DJ & Conference Installations

The Sound Town UPDM-Q3 is a lightweight 4-channel amplifier engineered to deliver powerful, efficient performance in professional PA, DJ, and installation environments. Capable of producing 4 x 1150W RMS at 4Ω or 4 x 600W RMS at 8Ω, it combines substantial output with energy-conscious operation. Utilizing advanced class-D technology, the UPDM-Q3 maintains a compact footprint without sacrificing sonic clarity or reliability. Connectivity is versatile, with 4 XLR inputs and 4 Speakon outputs, while the STEREO/PARALLEL/BRIDGE switch allows flexible signal routing. An integrated LPF ensures subwoofers receive clean, defined low frequencies by filtering out unwanted highs. Protection features include overload, overheat, and short-circuit safeguards, a dedicated fuse holder, LED indicators for power, signal, overload, and protection, a 3-second start delay, and a built-in limiter for smooth, distortion-free activation. Housed in a sturdy 1U metal chassis, the UPDM-Q3 is designed for reliability in demanding installations, touring, or live sound scenarios, providing consistent, high-quality amplification wherever it’s needed. FEATURES EFFICIENT POWER OUTPUT: The Sound Town UPDM-Q3 is a 4-channel amplifier delivering 4 x 1150W RMS at 4Ω and 4 x 600W RMS at 8Ω, combining high output with energy-efficient operation. ADVANCED CLASS-D TECHNOLOGY: The lightweight class-D design ensures exceptional performance without compromising portability. VERSATILE CONNECTIVITY: Features 4 XLR inputs and 4 Speakon outputs, with STEREO/PARALLEL/BRIDGE switching for flexible signal routing. An integrated LPF produces clean, precise low-frequency output for subwoofers by filtering unwanted highs. BUILT-IN PROTECTION: Protection against overload, overheating, and short circuits includes a fuse holder, LED indicators for power, signal, overload, and protection, a 3-second start delay, and a built-in limiter for smooth, distortion-free operation. DURABLE DESIGN: Housed in a 1U metal rack-mount chassis, the UPDM-Q3 withstands demanding applications while providing long-term reliability. SPECIFICATIONS Dimension & Weight Product Width (in.) 19.0" Package Width (in.) 22.0" Product Height (in.) 1.7" Package Height (in.) 3.4" Product Depth (in.) 15.4" Package Depth (in.) 17.2" Product Weight (lb.) 12.2 lbs Package Weight (lb.) 14.0 lbs Warranty/Certifications Manufacturer Warranty 1 Year DOWNLOADS ▶ UPDM-Q3 User Manual (V2), purchased after 01.25.26 ▶ UPDM-Q3 User Manual (V1), discontinued