When your sound system needs additional low-end output and punch, the Alto Professional TS315 powered subwoofer extends the low-frequency response of essentially any full-range speaker, allowing that speaker to focus on the mid and high frequencies instead. This results in a system with a stunningly wide-range response with a dramatic, powerful low-end and effortless, clean mids and highs. The audience gets to experience everything with pristine clarity, from the lowest droning bass, to the most brilliant of percussion, and everything in between. Features 2000 watts of peak power output High-efficiency Class D amplifier Transducer: 15-inch with 3-inch high-temperature voice coil (2) XLR+1/4-inch combo inputs + (2) balanced XLR line outputs XLR outputs, with six discreet DSP output modes for ideal matching with companion full-range speaker Polarity Reverse switch and Extended LF switch for increased EQ control Electronic clip, thermal and transducer overdrive protection Rugged, internally-braced front-ported MDF cabinet with integrated 36mm pole socket Rugged, mar-resistant splatter-spray finish always looks good, even with heavy use Designed and tuned in the USA Premium Components With a durable, long-excursion woofer housed in a ported enclosure with solid bracing, computer-optimized for powerful low-end frequency response, the enclosure of the TS315S is constructed from a dense wood composite. This sturdy material is virtually acoustically perfect, ensuring that the subwoofer's output is always clean and articulate. Traditional enclosures made from thin metal or plastic are prone to flexing, and actually negatively affect the acoustic impact of the speaker by dissipating the driver's energy throughout the cabinet enclosure. The TS315S's rugged braced wood composite housing doesn't waste the driver's energy as cabinet resonance. The Perfect Match In order for a subwoofer to integrate into an existing speaker system, a strong and clear output is only half of the equation - it needs to blend perfectly with the companion speaker. The Alto Professional TS315S have a choice of six selectable DSP output modes, allowing the subwoofer's frequency response and crossover frequency to be matched perfectly with the speaker it's paired with. Four of the six selectable options match the subwoofer perfectly with Alto TS2 and TS3 full-range speakers, while the other two options ensure a seamless match even when using non-Alto branded full-range speakers. Precision-Engineered for Performance Featuring advancements such as Finite Element Analysis (FEA), Alto Professional's computer design techniques enable them to optimize the speaker's magnetic structure and retain a tight voice coil gap for the greatest possible sensitivity. These voice coils employ incredibly tight windings, ensuring maximum utilization of the input signal, while proprietary adhesives result in unparalleled consistency and durability under high temperature conditions for unrivalled system reliability. The TS315S employs an integrated 2000W amplifier (1000W continuous) with exclusive limiting circuitry that provides electronic protection over clipping, thermal, and transducer overloads, to guarantee that the system sounds clean and clear, regardless of how hard it's being pushed. Specifications Output Power 2000W peak 1000W continuous Amplifier: High-efficiency Class D amplifier Speaker Compliment 15” woofer 3” voice coil Frequency Response: 44Hz – 85Hz (- 3dB) Frequency Range: 37Hz – 100Hz (-10dB) Maximum SPL: 131dB (@ 1m) 128dB continuous (dB SPL @ 1 m) Connections 2x XLR + ¼” inputs 2x XLR outputs 1x IEC power cable input Input Level: Line +4dBu (nominal) External Controls Volume control DSP output mode switch Polarity-reverse switch Extended low-frequency switch Power switch Electronic Protections Electronic clip Thermal and transducer overdrive protection Enclosure: Internally braced MDF cabinet; 36 mm mounting pole socket on top panel Power Connection: IEC with Mains Fuse AC Voltage Input: 220–240V, 50/60Hz Consumption: 1000 W Fuse: T5AL AC250V (220–240V) Dimensions 542mm (H) x 523mm (W) x 628mm (D) 35.6kg