B-121 is a ULF subwoofer with biggest woofer unit in TRS audio, which is a ULF active subwoofer with DSP inside, it increased system integration and reduced system cost. The power amplifier module uses a powerful powersoft module with a single 21-inch ultra-long stroke neodymium magnet unit that provides a driving force for the cymbal. The B-121 frequency response reach to 27Hz. The low-frequency extension is a medium-to-large-scale sound reinforcement system. From a single low frequency to a complete low-frequency array, its unique pressure feedback design allows the ultra-low frequency to release power while retracting.
Unit type: 1x21”
Frequency response: 27Hz-120Hz
Power rated: 1800W
Coverage angle(Horizontal x vertical): All directions
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TRS speakers in the United States, with the perfect combination of natural art and advanced professional technology, have always been loved by global sound engineers and acoustic designers for their high definition and strong shock.
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