PSW-6 High-Power Cardioid Subwoofer

The Meyer Sound PSW-6 is the first low-frequency system to exhibit a
true cardioid directional pattern throughout its operating range. The
PSW-6’s unprecedented directional control spans more than two full
octaves, with a front-to-back SPL ratio of more than 15 dB (typically
more than 20 dB) from 30...