The dual 18" D.A.S. Audio ACTION-S218A is a 3200W powered subwoofer that’s portable, versatile, and simple to use. It is designed to supplement a main PA speaker, offering a louder and deeper bass extension to the ACTION-508A, -512A, -515A, or any full-range PA speaker and is suitable for audiences up to 300. The onboard DSP processing, 2-input channels, and a dedicated crossover knob help working presenters, musicians, instructors, performers, and A/V providers get powerful, clean, and clear sound quickly. The specialty 18FW4 drivers are equipped with double-layer 3" voice-coils with a forced convection circuit that reduces the effects of coil heating for remarkable system power, clarity, depth, and punch.

The subwoofer provides 140 dB of peak SPL—plenty of volume for mid-sized venues including houses of worship, conference centers, performance spaces, and meeting rooms. The highly efficient 3200W Class-D amplifier powers the two 18” woofers, providing a deep, clean, and detailed bass response with a frequency range of from 125 down to 35 Hz.

The rear panel offers two line-level inputs with combo XLR-1/4" connectors. Two XLR Thru-Output are available for daisy-chaining to additional subwoofers / speakers. An integrated 100 Hz high-pass filter is available for the stereo loop-thru XLR outputs, which can be switched on or off; useful for connecting full range tops via the subwoofer. Additionally, the rear panel includes a variable low-pass filter (63 to 100 Hz), gain control, and polarity reverse. All inputs are mixed to a mono signal internally. For a true stereo L/R operation, two S218As are needed with each to receive independent the left and right signals respectively. The S218A features a powerCON input and thru-put for daisy-chaining power for up to four subwoofers. The ACTION-S218A ships with a standard powerCON power cord.