Baron1999

I just got a R-12SWI subwoofer but my amp has no LFE port. I wish to utilize the wireless capability of this Klipsch subwoofer but not sure how/where to connect the LFE connector to transmit the signal from the wireless transmitter. I have an older NAD amp with standard legacy analog / RCA input and output ports. I bought a single female RCA to 2 male RCA splitter and tried to connect a source output (tape output left and right) to the male LFE cable connected attaches as part of the transmitter but nothing seems to happen. On the other hand, directly connecting the same RCA output source via an RCA cable to the subwoofer input RCA jacks works perfectly fine. Any ideas how to utilize the wireless capability on the legacy NAD amp? Thank you!