Designed to complement the PV family of enclosures, the PV 118D powered subwoofer features a power section that provides 300W for the woofer with Peavey-exclusive DDT compression. The PV118D has a 18" heavy-duty woofer, as well as a balanced XLR input jack, balanced XLR output with switchable thru/high-pass filter, speaker level input, and volume level control. There is also a ground level switch just in case there is ground-loop hum between connected equipment.