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The SR-221.3, showcased at ISE 2026, features dual 21-inch drivers, four 10-inch carbon-fiber midrange drivers, and a 5-inch ring-radiator compression driver.
This full-range loudspeaker achieves a remarkable 27 Hz–20 kHz frequency response and offers up to ~140 dB SPL with a 170° × 60° coverage pattern.
Theory Professional's SR Series includes eight models, available as passive, active, portable, and install variants, in compact cabinets.
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* Diesel introduces a wired headphone model, blending bold design with functionality, showcasing the brand's signature style.
* The Telegrapher Raccoon is a compact near-field two-way monitor featuring a 6-inch woofer, 1-inch tweeter, and passive radiator.
* Knowles has introduced a new family of multi-way balanced armature drivers, designed to enhance premium TWS earbuds and in-ear monitors.
* The Toneoptic CAN is a modular vinyl record storage solution featuring stackable crates with embedded handles for easy access.