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Alto TX212S Active Subwoofer

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Product Description

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Deep, defined, and rich

Give your sound the impact it deserves. Sometimes, a pair of full-range speakers just don't quite give you everything you need. Adding an Alto TX212S to your system lets you take advantage of a more powerful, extended low-end response, taking your sound to the next level.

The TX212S's 12'' transducer is driven by the sub's high-efficiency Class-D amplifier. Capable of producing 900W of peak power (450W continuous), the amp works in harmony with the entire subwoofer design to deliver that signature Alto sound. Every note is reproduced with phenomenal clarity, deliver a distortion-free sound that your audience will never forget.

Built with precision

No more resonance. And no more wasted acoustic energy. The TX212S's cabinet has been built to ensure maximum performance at all times. Crafted from rugged MDF with a braced design, the cabinet makes sure that none of the transducer's energy is dissipated through vibrating, resonant cabinet walls. Instead, every bit of energy is right where you need it, delivering your sound with impact and power.

The perfect match

Optimise your system. With a choice of six DSP output modes, you can ensure that your TX212S's response is perfectly suited to the full-range speakers you're using it with. Four of these modes have been tuned specifically for use with Alto Professional's TX2 series of full-range speakers (TX208, TX210, TX212, and TX215). The other two are Hi-Pass and Bypass modes. Whichever one you choose, the system adjusts the frequency response and crossover frequency, creating a perfect match for your speakers.


  • High-efficiency Class-D amplifier with 900W of peak power output
  • 12'' transducer with a 2'' high-temperature voice coil
  • 2 x XLR-1/4'' combo inputs and 2 x balanced XLR line outputs
  • XLR outputs with six discreet DSP output modes for ideal matching with full-range speakers
  • Polarity Reverse switch and Extended LF switch provide increased EQ control
  • Electronic clip, thermal, and transducer overdrive protection
  • Rugged internally-braced front-ported MDF cabinet
  • Integrated 36mm pole socket
  • Rugged, mar-resistant splatter-spray finish always looks good, even with heavy use
  • Designed and tuned in the USA


  • Output Power: 450W (Continuous) / 900W (Peak)
  • Transducer: 12'' / 305mmm woofer
  • Frequency Response: 46Hz - 115Hz (-3dB)
  • Frequency Range: 40Hz - 130Hz (-10dB)
  • Maximum SPL: 126dB (at 1m)
  • Connections:
    • 2 x XLR-1/4'' combo inputs
    • 2 x XLR outputs
    • 1 x IEC power cable input
  • External Controls:
    • Volume control
    • Signal/clip limiter with LED
    • DSP output mode switch with LED
    • Polarity-reverse switch with LED
    • Extended low-frequency switch with LED
    • Power switch with LED
  • Electronic Protection:
    • Electronic clip protection
    • Thermal protection
    • Transducer overdrive protection
  • Enclosure Material: Internally-braced MDF cabinet
  • Pole Socket: 36mm (top panel)
  • Power:
    • Connection: Standard IEC cable
    • Input Voltage: 220-240VAC; 50/60Hz
    • Consumption: 500W
    • Fuse: T3.15AL AC250V (220-240V)
  • Dimensions: 421mm x 403mm x 518mm / 16.6'' x 15.9'' x 20.4'' (H x W x D)
  • Weight: 20.1kg / 44.32lbs

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