Alto Professional TX312 12" 700W Active Lightweight Moulded Cabinet PA Speaker

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Introducing the Alto TX312, a 700-watt powered speaker perfect for a variety of live sound situations. With the TX3 Series, Alto Professional has created a family of powered loudspeakers suitable for your most demanding gigs, night after night. Using much of the technology of our acclaimed TS3 series, the new TX3 Series delivers the power and clarity you need to sound your best.

The TX312 features a bi-amplified 2-way designs, with a long-excursion woofer and a 1-inch titanium compression driver in a precision horn. The horn design of the TX3 Series improves high-frequency performance and produces a very precise 90˚H X 60˚V radiation pattern—ideal for optimal audience coverage.

The TX312 Series are housed in rugged, lightweight, easily transportable cabinets. The trapezoidal shape enables either upright or wedge monitor positioning and the full-sized steel grille gives complete driver protection. These speakers are built for continuous heavy-duty use. Add to that a full complement of inputs/outputs and mounting options and it’s easy to see that the TX312 plays an indispensable role in your performance.


  • Professional sound from a bi-amplified design with built-in EQ
  • Huge output with 700W peak output power on board
  • Lightweight and efficient Class-D amplification technology
  • Wide, even coverage from a 90 H x 60 V horn
  • Articulate bass response from a 12” low frequency driver
  • Extended high frequency range from a 1” titanium compression driver
  • Precise frequency management from an onboard active crossover
  • Protected against peaks and clipping with an integrated analogue limiter and overload protection circuitry
  • Sculpt your tone with ease thanks to a Contour switch with low and high frequency +3dB boost
  • Remove unwanted hums and buzzing with the ground-lift switch
  • Robust, roadworthy design with a full protective grille
  • Versatile enclosure that’s ideal for portable main speaker or wedge monitor applications


  • System Type: 2-way active ported loudspeaker
  • LF driver: 12.0” (305 mm) driver, 2.0” (51 mm) voice coil
  • HF driver: 1.0” (25 mm) titanium-diaphragm compression driver, 1.0” (25 mm) voice coil
  • Amplifier: 700 watts (peak), 350 (continuous), Class D power
  • Horn Coverage: 90-degree horizontal x 60-degree vertical (nominal)
  • Frequency Response: 75 Hz – 20 kHz (-3 dB)
  • Crossover Frequency: 2.5 kHz
  • Max SPL: 118 dB @ 1 m
  • Equalisation: Contour switch with low- and high-frequency +3 dB boost
  • Connectors: (1) XLR/TRS 1/4” (6.35 mm) balanced input (Line/Mic), (1) XLR output (Link), (1) IEC power cable input
  • Controls: Power switch, volume control knob, contour switch, ground-lift switch
  • Indicators: (2) power LEDs (1 front panel, 1 rear panel), clip limiter LED
  • Power: 100–120 V~, or 220–240 V~; 50/60 Hz
  • Protection: Thermal, overload analogue limiter/compressor
  • Enclosure: Injection-moulded polypropylene, multi-angle for main or monitor applications, metal grille, rubber feet, 2 handles (both sides)
  • Mounting/Installation: Standard 36 mm pole socket, wedge monitor
  • Dimensions (H x W x D): 602 x 381 x 343 mm
  • Weight: 13.3kg