To allow boldness, clarity and standard of excellence flourishing here, GT 21, the dual 21” infra subwoofer speaker was born as the perfect supplement of low frequency of GT line array systems.

With amazing peak of SPL 146.6dB output, the energy and power of the low frequency is still perceptible even at a great distance, GT 21 is the perfect choice for mega touring, rental use and for any application that needs a truly massive bass foundation.

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