Dynacord PSE218 Passive Sub Speaker

The  PSE 218 are the non powered versions of the PSD subs, share the same dimensions, transducer configurations, and the acoustic characteristics allowing them to be used with PSD 215 and PSD 218 without additional amplifiers when greater SPL is required. The PSE 215 and 218 may also be used as a subwoofer in any other active system combination.