The SR-28212ai creates an entirely new loudspeaker category by serving as a full range surround loudspeaker and as surround and main subwoofers – all within a single 6-inch deep enclosure.

Pro Audio Technology Launches Most Acoustically Ambitious, Intelligent, and Flexible Loudspeaker to Date

Lake Forest, CA – September 21, 2021Pro Audio Technology (PRO), the leading supplier of high-output loudspeakers and DSP loudspeaker controllers, announces a new loudspeaker model, the SR-28212ai – the company’s most acoustically ambitious and flexible loudspeaker ever created.

The SR-28212ai features a 1.7-inch advanced polymer compression tweeter, two ultra-high output 8-inch midrange drivers, and two 12-inch, 2000W woofers inside a distinctive, aimable enclosure. It serves as three loudspeakers in one: a very high-output, very full-range loudspeaker for LCR or surround applications, an LFE (main) subwoofer, and a subwoofer for surround and Atmos speaker bass management – all at the same time, and all within a single 6-inch deep enclosure.

Secrets Sponsor

Designed with residential surround sound systems (including DCI) in mind, the SR-28212ai can be configured with straight-firing axi-symmetric, or 40-degree asymmetric waveguides which aim the sound at a 40 degree angle to the loudspeaker’s main axis. This allows the sound to be “aimed” at the reference listening position while the speaker is mounted flush in a flat architectural wall. The SR-28212ai is also the first PRO product to utilize PRO’s new Theorem Waveguide™, which offers text-book on and off-axis dispersion of critical high frequencies.

“By leveraging the bass-management capability of our ALC model amplified loudspeaker controllers, a single SR-28212ai loudspeaker system can serve as a full-range surround loudspeaker, an auxiliary LFE system subwoofer and a surround speaker bass-management subwoofer, simultaneously”, said Paul Hales, President and Product Designer, Pro Audio Technology. “For example, in space or budget-constrained systems, three 6-inch deep 28212ais can operate as the LCR speakers and three main LFE subwoofers. There is no need to buy or locate separate subs”.

Fully aimable using PRO’s pivot brackets, the SR-28212ai provides a very wide dispersion, is incredibly efficient (>100dB/W in every passband) and offers massive output of over 130dB. The low frequency section is 102dB sensitivity (with 4000W, 2000W AES, power handling); mid frequency is 106dB (1000W, 500W AES, power handling); and high frequency is 108dB / Watt.

In depth-constrained systems where the speakers cannot be aimed, the SR-28212ai can also be ordered with a 40-degree waveguide to aim high frequencies at 40 degrees when mounted flat. To further increase utility, the mid-tweeter module can be inverted to bring the tweeter level down or locate it in the center of the enclosure for horizontal use, such as under or over video walls, with either a 0-degree or 40-degree waveguide.

Secrets Sponsor

Alternatively, an installer could invert the mid-tweeter baffle and mount the speaker upside down, placing the subwoofer section near the ceiling for use as a surround sub to augment Atmos speakers while keeping the midrange drivers and tweeters in the correct orientation and at the proper height. Extremely flexible, the SR-28212ai 40-degree asymmetric waveguides can be rotated in 90-degree increments to fire in any direction: left, right, up, or down.

“I’m not aware of a more powerful or flexible loudspeaker system anywhere,” said Hales. “Combined with our ALC bass-management and mixing capabilities, there is almost no application it cannot handle.”

The SR-28212ai loudspeakers are now available worldwide. For pricing, interested dealers, reps, and international distributors can contact PRO’s VP of Sales, Mark Goldman, at: [email protected].

For more information on Pro Audio Technology, please visit

Pro Audio TechnologyAbout Pro Audio Technology
Through a thoughtful combination of consumer and professional engineering technologies, Pro Audio Technology (PRO) designs and manufactures a complete range of loudspeakers and DSP amplified loudspeaker controllers that address the needs of high-end residential installations. PRO products unite lively dynamics, high maximum output level, and refined acoustic performance – satisfying even the most discerning music and home theater enthusiasts around the globe. All PRO products are designed, engineered and manufactured in the USA. Pro Audio Technology products are available globally through an elite group of high-end residential custom installers. Pro Audio Technology is the brand name of Professional Home Cinema, LLC.