SR-28.2 Dual 8″ 2-Way Multi-Use Loudspeaker
The SR-28.2 offers performance, coverage and output similar to the 12” SR-112.2, in a more slender package for applications where form factor is important.
The SR-28.2 features an 80º x 60º elliptical horn with particularly controlled response that ensures every seat in the intended coverage area hears the same accurate sound. The sound quality is particularly “hi-fi” in its accuracy and refinement.
Surprisingly compact, the powerful, high-fidelity SR-28.2 won’t impede on aesthetics – it can be installed discreetly, and in tighter locations than other sound reinforcement style speakers on the market.
The SR-28.2 was thoughtfully designed from top to bottom including ergonomic handles, multiple fly points, industry-standard mount points, and pole cups.
It is available in black and white, and in passive or active versions depending on the installation need. Upgrades include custom paint matching and weatherising (of the passive version only).
Optional accessories include the Theory SplitYoke™ Multipurpose Mounting Brackets used to install the SR-28.2 easily on the wall, ceiling, floor (as a monitor), and other surfaces.
Theory’s new SR Series loudspeakers are built-to-order in the U.S. and unite lively dynamics, high maximum output level, and refined acoustic performance. Unlike most sound reinforcement speakers, and in line with the brand’s promise, Theory is raising the performance bar, not only in terms of accuracy of the reproduced sound, but also in sheer output capability.
Capable of astonishing range and output, the compact SR-28.2 will have you rethinking how you design your next portable or installed sound reinforcement project.

SMOOTH. ACCURATE. EXTENDED….and CONTROLLED.
The SR-28.2 Frequency Response is remarkably flat and extended, ensuring the highest accuracy and highest-resolution available.
EVEN THE CHEAP SEATS RECEIVE GREAT SOUND.
The Estimated In-Room Response shows the SR-28.2 will fill a reverberant room with coherent, accurate sound.


POWERFULLY SMOOVE.
The SR-28.2 Sound Power Response is smooth and extended, indicating the SR-28.2 will fill a room with neutral, wide-bandwidth sound everywhere.
AUDIENCE ON THE FLOOR AND IN THE BALCONY? NO PROBLEM.
The SR-28.2’s horizontal SPL response is smooth and controlled across the intended coverage angle, so audience members off-axis still hear accurate sound.


WHEN WE SAY 80, WE MEAN EIGHTY. WHEN WE SAY 60, WE MEAN SIXTY.
The SR-28.2’s horizontal directivity contour plot confirms the loudspeaker delivers its full 80° x 60° coverage pattern consistently across frequency.
CIRCULAR LINEARITY.
The horizontal polar plot (normalized) shows the SR-28.2’s dispersion pattern remains consistent across the audio band.


LISTEN WITH YOUR EYES.
The horizontal polar contour plot (normalized) makes it easy to see how evenly the SR-28.2 disperses sound across its coverage area.
SPECIFICATIONS
- Bandwidth: 45Hz – 23kHz, -3dB; 41Hz, -6dB; 37Hz, -10dB
- Crossover: 8th order acoustic via DSP
- Coverage: 80° Horizontal x 60° Vertical
- Sensitivity: 97dB LF; 108dB HF SPL/2.83V/1m
- Power Handling: 400W (AES); 800W (Continuous); 1,600W (Peak)
- Minimum Recommended Power: 250W rms
- Maximum Output: 123dB SPL / 1m (based on AES power rating); 129dB SPL / 1m (peak)
- Nominal Impedance: 8-ohms LF; 16-ohms HF
- Description: High-Output Dual 8″ 2-Way Multi-Use Loudspeaker with 80° x 60° Elliptical Horn
- Operation: Bi-amp, Requires 2 Theory Loudspeaker Controller Channels
- DSP Requirements: Requires Model-Specific Theory-Certified DSP Loudspeaker Processing
- Drivers: 2 x 8″ 400W Low Frequency Drivers; 1 x 1.75″ Theory Advanced Polymer Compression Driver
- Enclosure: Standard: Premium Multiply Birch Plywood with Poly Urea Paint; Weatherised: Marine-Grade Composite with Poly Urea Paint
- Terminals: Passive: Neutrik SpeakOn NL-4, 4-Position Barrier Strip; Self-Powered: Neutrik XLR Input with Loop Output
- Outdoor Capability: Indoor and Outdoor Use (with Optional Weatherised Finish)
- Mounting Points: Industry Standard Mount Points, M10 Fly Points (28), Swappable Integral 20mm Pole Cups (2) and Top Hats (2); Optional SplitYoke™ Multipurpose Mounting Brackets
- Colors: Black or White Standard; Custom Paint or Weatherizing (Optional)
- Dimensions: Speaker: 709mm H x 305mm W x 305mm D
- Net Weight: 19kg
- Included Accessories: Black Indoor Grille, 20mm Top Hats (2), Pole Cup w/ 20mm (2), Handles (3)
- Optional Accessories: SplitYoke™ Multipurpose Mounting Brackets




