YAMAHA DXS18 is an active bandpass subwoofer with DSP functions, 18" LF driver and 1020W class D amplifiers of dynamic power. Technical features include custom 18" woofer with 4" coil, state-of-the-art Yamaha DSP processing function with X-OVER frequency selection button, 3-mode D-XSUB processor: BOOST, XTD LF, NORMAL, convection cooling, overload protection functions. It has L/R input connections through 2 XLR slots, L/R outputs via XLR with through/HPF post selection switch
, reverse polarity switch.