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TR21B SINAL 21INCH SUBWOOFER FOR STAGE
The TR21B subwoofer is ideally designed for small to large outdoor or indoor concert events that require bandwidth expansion and powerful impact in a compact cabinet. The TR21B Professional Audio Subwoofer features a 21-inch subwoofer in a bass reflex tuned cabinet. transducer. The use of L-shaped vents can greatly reduce turbulence, isolate high levels of noise, and improve low-frequency efficiency.
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