For those occasions when you need more low-frequency output and punch from your PA, the Alto TS318 powered subwoofer extends the bass response of almost any fullrange speaker, relieving that speaker of the job of reproducing low bass frequencies. This results in a system with an outstandingly wide-range response, with dramatic and powerful low frequencies, and clean, undistorted mids and highs - so your audience can hear everything with pristine clarity, from the lowest bass synth sounds, to the most brilliant percussion and bells, and everything between. Features 2000 watts of peak power output High-efficiency Class D amplifier Transducer: 18-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 Featuring a robust long-excursion woofer mounted in a braced, computer-optimized, ported enclosure for powerful low-end replication, the enclosure of the TS318S is constructed from a dense wood composite. This rugged material boasts virtually perfect acoustic characteristics, and is free of resonance - ensuring that the subwoofer's output remains clean and impactful. The Perfect Match In order for a subwoofer to work with a speaker system, it must seamlessly combine with the companion speaker. This is where the Alto TS318 excels. With six selectable DSP output modes, the frequency response and crossover frequency of the TS318S are perfectly matched to the speaker it's being used with. Precision-Engineered for Performance Alto's computer design techniques feature advancements like Finite Element Analysis (FEA), enabling an optimized magnetic structure of the speaker, and a tight voice coil gap for maximum sensitivity. With extremely tight windings, Alto's voice coils ensure maximum use of the input signal, and their adhesives exhibit unparalleled consistency and durability in high-temperature conditions for unmatched system reliability. Driven by an integrated 2000W amplifier, the TS318S features exclusive limiting circuitry that provides protection from electronic clipping, and thermal and transducer overload, to ensure that the system always remains clear and clean, regardless of how hard you're pushing it! Specifications Output Power 2000W Peak 1000W Continuous Amplifier: High-efficiency Class-D amplifier Transducers 1x 18” Woofer 1x 3” Voice Coil Frequency Response: 44Hz – 86Hz (- 3dB) Frequency Range: 35HZ – 97Hz (-10dB) Maximum SPL: 133dB (@ 1m) 131dB continuous (dB SPL @ 1m) 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 Indicators Signal/Clip Limiter LED Six DSP Output Mode LEDs Polarity-Reverse LED Extended Low-Frequency LED Power Switch LED Electronic Protections Electronic Clip Thermal and Transducer Overdrive Protection Enclosure: Internally braced MDF cabinet; 36mm mounting pole socket on top panel Power Connection: IEC with Mains Fuse AC Voltage Input: 100, 110 - 120, 220 - 240V, 50/60Hz Consumption: 1000W Fuse: T5AL AC250V (220–240 V) Dimensions 680mm (H) x 533mm (W) x 628mm (D) 39.2kg