Alto Professional TRUESONIC 2 Series 1250 Watt Active 18" Subwoofer TS218S

Code: TS218S

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Alto's professional quality speakers are exceptional value and really impressive to listen to.

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Price: £455.00
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Alto Professional TRUESONIC 2 Series 1250 Watt Active 18" Subwoofer TS218S:

If you are in dire need of solid, powerful and in-your-face bass for professional applications, then we have something that's really going to blow you away... Wembley Music Centre is proud to introduce the Alto TRUESONIC 2 Series Active 18" Subwoofer.

Able to blast out thumping low end frequencies with professional grade sound quality and remarkable clarity, the TS218S is ideal for any large scale functions. For the full experience, we recommend pairing this sub with any of Alto's excellent PA system speakers!

Reliable, super tough, very easy to set up and insanely simple to use and tweak; the Alto TS218S 18" Subwoofer ticks all the boxes for functionality and is designed to make the life of the user as easy as possible!

Notable Features:

  • 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
  • 18-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 and M10 rigging points


  • Output Power: 1250 W peak, 625 W continuous
  • Transducer Low: 18” (457 mm) woofer, 3” (76 mm) voice coil
  • Frequency Response: 35–95 Hz (-10 dB)
  • Maximum SPL: 131 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): 26.8” x 20.7” x 24.8” / 680 x 525 x 630 mm
  • Weight: 32 kg


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