Alto Professional TX18S 900W 18-Inch Powered Subwoofer

18-inch powered PA subwoofer with 900W peak/450W RMS Class-D amplifier, 3-inch voice coil, 126dB SPL, DSP Music/Live EQ, selectable 80/100/120Hz low-pass filters, polarity reverse, dual XLR/TRS combo inputs and balanced XLR outputs.