Theory Professional SR 221.3 debut | Tech demo | ISE 2026
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Theory Professional introduces the SR 221.3 speaker to the European market at ISE 2026. This advanced prototype features a unique horn design and offers a 180-degree horizontal by 60-degree vertical coverage pattern. Known for its high output, this speaker combines the capabilities of a subwoofer with a full-range speaker. Attendees can visit Hall 8, Demo Room D4, for a demonstration.