Speaker wire polarity on a powered subwoofer


My Cary SLP 50 B preamp is inverting so I reverse the polarity on my speaker cable. If I run rca line level out from my preamp to the sub I obviously can't access the internal wiring on my powered sub to reverse the polarity. Does it really matter on a sub? What do I do?
tabbey
Thanks so much for the accurate information.

Troy
the biggest polarity problem on far to many recordings is bass, which oftentimes is out (opposite) from the rest of the music. IF your preamp or dac remote has a Polarity button (typically misnamed Phase) then you can bring both in line with the push of a button, otherwise...
since the audio for each instrument is recorded separately, how on earth is it out of polarity with the rest of the music? Thats really not how polarity works.