Theory Professional arrived at InfoComm 2026 with two new loudspeaker products, but the SR-221.3 was the one that made it difficult to ignore the company’s booth. The extreme output, full range sound reinforcement loudspeaker is the latest addition to Theory Professional’s SR Series, designed for installations and portable applications that require serious scale, wide coverage, and the kind of dynamic headroom that makes most conventional commercial speakers sound rather polite.
Do not confuse Theory Professional with Theory Audio Design. The two brands share the same corporate umbrella and the engineering vision of founder Paul Hales, but they serve different masters. Theory Audio Design is focused on premium residential and custom installation systems, while Theory Professional takes that same emphasis on compact form factors, high output, advanced drivers, and refined voicing into commercial venues, hospitality spaces, houses of worship, entertainment installations, and live sound reinforcement.
First previewed at ISE 2026 in Barcelona, the SR-221.3 made its InfoComm debut as the flagship statement piece in that strategy. With dual 21 inch low frequency drivers, four 10 inch carbon fiber midrange drivers, and a 5 inch ring radiator compression driver, it is essentially Theory Professional’s argument that a single enclosure can deliver rock concert scale without requiring a small army of boxes and a spreadsheet to deploy them. For a deeper look at the SR-221.3 and the wider SR Series, refer to our report from ISE 2026.
At InfoComm 2026, Theory Professional also debuted the p9 Pendant Loudspeaker, a second new product shown alongside the SR-221.3.
Theory Professional p9 Pendant Loudspeaker: What We Know So Far
The p9 expands Theory Professional’s pendant loudspeaker lineup, building on the existing ic6 PENDANT. With this new model, Theory is targeting premium commercial spaces that require more output, wider bandwidth, and greater placement flexibility than a conventional compact pendant speaker can typically provide.
The p9 combines high output capability and dynamic range with a slender, design-conscious form factor. Inside its black anodized aluminum enclosure is a 9-inch driver system featuring Theory’s Theorem axi-symmetric waveguide and a carbon fiber sandwich low-frequency diaphragm. Theory specifies a frequency range of 45Hz to 20kHz, which means that many foreground music installations may not require a separate subwoofer.
The p9 is also designed to maintain 120-degree dispersion through the upper frequencies, creating broad and consistent coverage in spaces where listeners may be spread across a wide area. That could prove particularly useful in restaurants, hotels, retail environments, and other installations with lower ceilings, where fewer loudspeakers and broader coverage can simplify system design.
Its driver provides the radiating surface area of a 9-inch unit while fitting within an 8-inch chassis, helping Theory keep the overall enclosure compact. The bezel-free industrial design further minimizes its visual footprint, allowing the p9 to blend more naturally into hospitality, wellness, retail, and other architecturally sensitive environments.
Theory Professional positions the p9 as an answer to a growing mismatch in commercial AV: increasingly refined spaces are still too often fitted with loudspeakers that prioritize utility over both sound quality and appearance. The p9 is intended to give dealers, integrators, architects, and designers a more upscale pendant option without sacrificing output or coverage. It is expected to ship in Q4 2026 in passive 16-ohm/70V and PoE versions.
The Bottom Line
Under Paul Hales, Theory Professional continues to pursue a very specific corner of the market: compact loudspeakers that do not surrender dynamics, bandwidth, or intelligibility simply because the installation needs to look civilized.
The p9 is not aimed at projects that require the cheapest possible 70V pendant speaker. Its appeal is the attempt to combine wide 120-degree coverage, useful low-frequency extension, high output capability, and a compact, architecturally friendly enclosure in one product. For restaurants, hotels, retail spaces, spas, clubs, and premium residential or light-commercial projects with exposed ceilings, that could mean fewer speakers, less visual clutter, and potentially no subwoofer for foreground music systems.
Theory has confirmed that the p9 and SR-221.3 will be shown and demonstrated at CEDIA Expo 2026 in Denver, giving the eCoustics team a chance to hear both products in person. That matters, because the specification sheet is promising, but the real question is whether the p9 can deliver the scale, tonal refinement, and broad coverage Theory is claiming without becoming another expensive pendant speaker that looks better than it sounds. We also expect CEDIA to bring clearer details regarding final specifications, availability, and pricing.
Price & Availability
The p9 will be available in Q4 2026 in both passive (16-ohms/70V) and PoE versions through Theory Professional commercial and residential partners.
Related Reading:
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