Alto TS15S 2500W 15-Inch Powered Subwoofer – Professional Active Bass Speaker for PA Systems
The Alto TS15S Powered Subwoofer delivers tight, punchy, and controlled bass with 2500W peak power, making it an essential addition to any PA system. Designed for live music, DJs, clubs, houses of worship, and large venues, the TS15S enhances your sound with deep, accurate low frequencies for a complete and balanced sonic experience.
Powered by a high-efficiency Class D amplifier and equipped with a 15-inch driver with a 3-inch high-temperature voice coil, the TS15S combines strength and clarity with durability. The internally braced MDF cabinet ensures reduced rattling and resonance, delivering clean and impactful bass every time.
With user-selectable EQ tunings (Off, Live, DJ), phase alignment controls (0°/90°/180°/270°), and versatile connectivity, the TS15S integrates seamlessly with full-range speakers, making it a flexible, powerful, and road-ready subwoofer for professionals.
Key Features
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2500W peak power output – powerful and consistent bass
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15-inch woofer with 3-inch high-temperature voice coil
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High-efficiency Class D amplifier – reliable, lightweight, and efficient
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User-selectable EQ modes: Off, Live, DJ
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Phase alignment selector: 0° / 90° / 180° / 270°
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Maximum SPL: 132 dB – deep, controlled low-end
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Frequency Response: 36 Hz – 110 Hz (-3 dB)
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Connections: (2) XLR+¼” combo inputs, (2) XLR outputs
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Internally braced MDF cabinet with 36 mm pole socket
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Mark-resistant finish for durability in heavy use
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Built-in protections: 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: 15” woofer, 3” voice coil
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Frequency Response: 36 Hz – 110 Hz (-3 dB)
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Frequency Range: 31 Hz – 123 Hz (-10 dB)
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Max SPL: 132 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 with internal bracing, front ported, 36 mm pole socket
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Dimensions (H × W × D): 541 × 523 × 627 mm (21.3” × 20.6” × 24.7”)
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Weight: 39.5 kg / 87.1 lbs
