Introducing this fantastic Subwoofer from Vonyx. This 18 inch active subwoofer speaker comes with adjustable low-pass filter between 30Hz and 120Hz. Featuring a built-in 1000W amplifier, a phase switch to let the sub acoustically play along in phase with the main speakers, reproducing an excellent deep bass sound and an IN/THRU connection for line-signal-chaining to another subwoofer. .
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