Alto Professional TS15S Active Subwoofer

Alto Professional TS15S Active Subwoofer

The Alto Professional TS15S is a powerful TrueSonic series subwoofer designed for event halls, nightclubs, and live performances. The unit features a high-quality 15-inch (381 mm) speaker with a 3-inch voice coil, powered by a high-efficiency Class D amplifier, generating an impressive 2500 W peak power. This allows for a sound pressure level of up to 132 dB and reproduces frequencies down to 36 Hz.

This model offers flexible controls, allowing for ideal integration of the low frequencies with main loudspeakers. You can choose from three EQ modes ("Off," "Live," "DJ") and use a unique 4-position phase alignment switch (0°/90°/180°/270°) to help avoid sound cancellation issues in challenging venues.

The enclosure is constructed from robust, internally braced MDF composite, ensuring the sound remains "tight" and does not lose energy due to cabinet vibrations. The surface is coated with a special splatter-spray finish, resistant to wear and tear, and the rear of the cabinet is pre-drilled for casters (M6 threads, casters sold separately).

Key Features

• Power: 2500 W Peak powerful Class D amplifier.
• Speaker: 15-inch low-frequency driver with a 3-inch voice coil.
• EQ Settings: 3 modes ("Off," "Live," "DJ") for sound character adjustment.
• Phase Control: 4-setting switch (0°/90°/180°/270°) for precise system alignment.
• Construction: Robust, ported MDF enclosure with a 36 mm pole mount socket.
• Protection: Electronic protection against clipping, overheating, and transducer over-excursion.

Technical Specifications

• Manufacturer: Alto Professional
• Model: TS15S
• Type: Active Subwoofer
• Output Power: 2500 W Peak @ 4Ω
• LF Driver: 15.0” (381 mm) with a 3.0” (76 mm) high-temperature voice coil
• Frequency Response: 36 Hz – 110 Hz (-3 dB)
• Frequency Range: 31 Hz – 123 Hz (-10 dB)
• Max SPL: 132 dB (@1m)
• Connectors:
  • 2 x XLR / 1/4” (6.35 mm) Combo inputs (female)
  • 2 x XLR Thru outputs (male) (full range or filtered)
  • 1 x IEC power socket
• Dimensions: 541 x 523 x 627 mm
• Weight: 39.6 kg
• Casters: Caster ready (M6 x 1.0 mm threaded inserts, casters not included)

What's in the box?

• 1 x ALTO TS15S Subwoofer
• 1 x IEC Power Cable
• 1 x User Guide
• 1 x Safety and Warranty Manual

Intended Use

• Mobile DJs and event hosts looking for more powerful bass than 12" models provide.
• Bands and concert venues requiring a full and deep sound.
• Schools and cultural centers as a primary low-frequency system.