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Alto Truesonic TS215S Active Subwoofer

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Quick Overview

The Alto Truesonic TS215s Active Subwoofer is the latest addition to the truesonic range. Featuring improved build quality, a higher peak output as well as other advanced features. 

Alto Truesonic TS215S Active Subwoofer


Introducing the Alto TS215S Active Subwoofer, the latest addition to the truesonic series. With 1250 watts of peak power output and a reinforced chassis for extra protection making this ideal for small and large venues looking to improve their sound system.

The Alto Truesonic TS215S has been engineered with class D amplifiers that operate at greater efficiency, than the previous model, as well as featuring an innovative cooling system. The fan-less cooling design allows the sub to run with more clarity, less noise and long-term reliability due to less mechanical parts that could potentially corrupt.

In addition, the TS215S comes with multiple input types for total flexibility; these include two combo XLR + 1/4inch inputs as well as two balanced XLR line outputs.

Alto TS215S Subwoofer Feature Highlights:

  • 1250 watts of peak power output
  • Custom engineered high-efficiency Class D amplifiers with passive cooling design – no fan means the speaker runs cleaner, quieter and has greater long-term reliability
  • 12-inch high-excursion woofer
  • (2) XLR+1/4-inch combo inputs + (2) balanced XLR line outputs
  • Polarity Reverse, Full-Range Output and Extended LF controls
  • Electronic clip, thermal and transducer overdrive protection
  • Rugged, internally-braced front-ported plywood cabinet
  • Integrated 35mm speaker pole socket
  • Output Power: 1250 W peak, 625 W continuous
  • Transducer Low: 15” (381 mm) woofer, 3” (76 mm) voice coil
  • Frequency Response: 35–95 Hz (-10 dB)
  • Maximum SPL: 129 dB (@ 1 m)
  • Connections: (2) XLR+1/4” (6.35 mm) inputs; (2) XLR outputs; (1) IEC power cable input
  • Input Level: Line +4 dBu (nominal)
  • External Controls: Volume control, signal/clip limiter with LED, polarity-reverse switch, high-pass filter bypass switch with LED, extended low-frequency switch with LED, power switch with LED
  • Electronic Protections: Electronic clip, thermal and transducer overdrive protection
  • Enclosure: Internally braced plywood cabinet; 35 mm mounting pole socket ontop panel
  • Power Connection: Standard IEC cable
  • Input Voltage: 110–120, 220–240 V AC; 50/60 Hz
  • Consumption: 450W
  • Fuse: T6.3AL AC250V (110–120 V) or T3.15AL AC250V (220–240 V)
  • Dimensions (W x D x H): 21.34” x 20.3” x 24.8” / 542 x 515 x 630 mm
  • Weight: 62 lbs. / 28.2 kg

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Alto Truesonic TS215S Active Subwoofer