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Alto Professional TS15S - 2500-Watt Powered Subwoofer with 15” Driver The Alto Professional TS15S delivers powerful, controlled low-end sound with a 2500-watt peak output and a premium 15-inch driver. Perfect for live performances, clubs, houses of worship, and more, this subwoofer enhances your PA system with deep, punchy bass and reliable durability. Key Features 2500W peak power output with high-efficiency Class D amplifier 15-inch woofer with 3-inch high-temperature voice coil for superior sound quality Two XLR + 1/4-inch combo inputs and two XLR thru outputs for easy linking User-selectable EQ tunings: Off, Live, DJ modes Phase alignment selector switch with 0°, 90°, 180°, and 270° settings Rugged, internally braced front-ported MDF cabinet with integrated 36 mm pole socket Mark-resistant splatter-spray finish for long-lasting durability Electronic clip, thermal, and transducer overdrive protection Designed and tuned in the USA for professional-grade performance Product Overview The TS15S powered subwoofer is designed to provide rock-solid sound from the bottom up. It adds tight, punchy low-end presence to any full-range speaker setup, delivering a balanced listening experience with extended low frequencies. Whether you are performing in concert halls, nightclubs, or houses of worship, the TS15S offers reliable power and tonal balance for any environment. Built with a premium internally braced composite MDF cabinet, the TS15S ensures tight, controlled sound without unwanted rattles or vibrations. Its 15-inch driver with a 3-inch voice coil is engineered to withstand the rigours of live performance, making it ideal for both permanent installations and touring setups. Versatile onboard electronics allow quick adjustments with user-selectable EQ tunings and phase alignment controls to ensure seamless integration with your existing speaker system. Dedicated input and output connections make linking with Alto Professional full-range loudspeakers or other standard units effortless. Specifications Output Power: 2500W peak @ 4Ω Transducer Low: 15” (381 mm) woofer; 3” (76.2 mm) high-temperature voice coil Frequency Response: 36 Hz – 110 Hz (-3 dB) Frequency Range: 31 Hz – 123 Hz (-10 dB) Maximum SPL: 132 dB (@1m) Connections: (2) XLR + 1/4” (6.35 mm) combo inputs; (2) XLR outputs; (1) IEC power cable input External Controls: Volume control, signal/clip limiter with LED, speaker use button, proximity button, power switch with LED Electronic Protections: Electronic clip, thermal and transducer overdrive protection Enclosure: Internally braced MDF cabinet; 36 mm mounting pole socket on top panel; caster insert thread gauge: M6 x 1.00 mm Power Connection: Standard IEC cable Input Voltage: 100-120 V, 50/60 Hz; 220-240 V, 50/60 Hz Power Consumption: 1600 W Fuse: 100-120 V, T15AL AC250V; 220-240 V, T8AL AC250V Dimensions (H x W x D): 21.3” x 20.6” x 24.7” / 541 x 523 x 627 mm Weight: 87.1 lbs / 39.51 kg