AVS Special Member
Join Date: Dec 2007
Location: Southern California
Mentioned: 3 Post(s)
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You can take a balanced cable and cut off the XLR on one end and put an RCA connector on that end to use as an adapter cable.
Just connect one leg of the signal (from pin 2 of the XLR) to the center pin of the RCA, and the ground (from pin 1 of the XLR) to the outer shell of the RCA connector.
I use that type of cable to connect my TV audio output to my balanced preamp.
Of course this is not a balanced connection, but it will get the job done.
Of course maybe you are just setting the crossover frequency wrong on the sub.
My main speakers are rated to go down to around 40 hz, and the best setting on the sub crossover filter seems to be between 40 and 50 hz.
I would experiment some more with the gain and frequency settings on the sub first.