The passive E 110 Sub subwoofer is equipped with the same the high-performance 10" woofer as its active sibling. Plug a two-wire speaker cord equipped with Speakon connectors into the NL4 port on the rear panel to connect it straight to an active E 110 Sub A subwoofer or a separate EA 600 amp. The passive and active subwoofers’ enclosures are identical, so they can easily be combined to form one cohesive acoustical unit. The integrated E-Connect coupler on the subwoofer’s top panel also serves as a pole mount for further EP 1, EA 600, and E 435 modules.