CS218L
Dual 18 inch Subcardioid Subwoofer (Single-amp or Dual-amp)
Subcardioid (>10 dB rear rejection) nominal beamwidth within operating range

Application Notes:
Pre-Out EQ tab has user-adjustable low pass filter.
LF1 is wired to speakON pins 1+/-; LF2 is wired to speakON pins 2+/-

Technical info:
* Amplifier Gain is set to 32 dB.
* Factory ISVPL Speaker Thresholds and MaxRMS Limiter Thresholds are engaged.