Alto TS18S 2500W 18-Inch Powered Subwoofer – High-Power Active Bass Speaker for PA Systems
The Alto TS18S Powered Subwoofer delivers tight, punchy low-end performance with 2500W peak power to complete your sound system. Designed for live music, DJs, and modern public music spaces, the TS18S adds controlled low-end impact to any PA configuration, ensuring a full, balanced sound across the entire frequency spectrum.
Equipped with a high-efficiency Class D amplifier, an 18-inch driver with a 3-inch high-temperature voice coil, and user-selectable EQ tunings, the TS18S offers unmatched flexibility and reliability. Built with a rugged MDF cabinet and electronic protection circuits, it is engineered to handle the most demanding environments while delivering professional-quality bass.
Key Features
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2500W peak power output for powerful, controlled bass
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18-inch woofer with 3-inch high-temperature voice coil
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Class D amplifier – efficient, reliable, lightweight
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Selectable EQ modes: Off, Live, DJ
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Phase alignment switch: 0° / 90° / 180° / 270°
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Maximum SPL: 137 dB – deep, room-filling bass
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Frequency Response: 35 Hz – 100 Hz (-3 dB)
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Connections: (2) XLR+1/4” combo inputs, (2) XLR outputs
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Front-ported MDF cabinet with 36 mm pole socket
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Mark-resistant finish withstands heavy use
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Electronic protection: clip, thermal, and overdrive
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Designed and tuned in the USA
Technical Specifications
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Power Output: 2500W peak @ 4Ω
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Driver: 18” woofer, 3” voice coil
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Frequency Response: 35 Hz – 100 Hz (-3 dB)
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Frequency Range: 27 Hz – 111 Hz (-10 dB)
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Max SPL: 137 dB @ 1 m
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Connections: 2 × XLR+¼” combo inputs, 2 × XLR outputs, IEC power input
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Controls: Volume, EQ presets, phase selector, limiter/clip LEDs, power switch
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Enclosure: MDF, front ported, 36 mm pole socket
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Dimensions (H × W × D): 678.2 × 530.9 × 627.4 mm (26.7” × 20.9” × 24.7”)
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Weight: 42.2 kg / 93.0 lbs
