Professional 2-way Line Array Loudspeaker

Compact Industrial-Grade Stage Sound

The SXA28p is a two-way line array loudspeaker capable of handling the most demanding performances with clarity thanks to its dual 8-inch low/mid drivers and dual 1-inch high frequency drivers. When combined with the Alto Professional SXA18p 18-inch vented subwoofer, these powerhouse loudspeakers are engineered to deliver a nearly limitless array of configuration options, allowing you to easily incorporate up to four SXA28p drivers as needed for a variety of environments. The SXA28p is also built to endure the rigors of the road night after night, while maintaining a sound that is loud, clean and uncolored. 

As part of Alto Professional's TOURMAX ARRAY series, the SXA28p loudspeakers and SXA18p subwoofer system are optimized for short or medium-throw, can be to installed in an indoor or outdoor space as stereo system, mono center, or as delay tower. This makes the SX28p loudspeaker part of the most remarkable value in component speaker arrays in the industry. 

With the ability to handle 400 watts Continuous, 800 watts Program or 1600 watts Peak, the SXA28p is ideal for high-powered amps and offers clean, uncolored sound for any venue. Capable of delivering 125 dB Peak SPL, the SXA28p packs serious performance. No matter how big or small the gig may be, the SXA28p can handle the job and produce incredible sonic clarity.

Frequent travel or reconfiguration can take a toll on any stage gear. Fortunately, the SXA28p is built for whatever your gigs brings. It has a rugged cabinet made of 18mm calibrated plywood that is ready for the constant abuse that touring systems endure on a daily basis. The sleek black finish and perforated metal grill make sure the SXA28p array is heard, not seen, so audiences stay focused on the performance. Whether on stage, on the road or in a house of worship, the SXA28p delivers flexible, powerful sound for a remarkable value. The SXA28p also combines quick set up with a coverage of 7.5° Vertical and 100° Horizontal and a maximum tilt capability of +20°/0°/-20°.

Suggested configurations include 2 × SXA18P subwoofers usable from 37Hz to 180Hz, plus 4 × SXA28P speakers usable from 77Hz to 18kHz and one STAGEDRIVE+ Digital Processor that includes factory presets and user memory for custom presets.

All information is preliminary and subject to change.


  • 1600 Watts peak power rating
  • Dual 8” LF drivers
  • Dual 1” HF drivers
  • Quick and easy to set up for a wide variety of configurations
  • Optimized for short or medium-throw, indoors or out
  • Maximum SPL @ 1m: 125dB Peak (Passive Mode)
  • Ideal for fixed installations or rentals