I have a BOSE Acoustmas 5 and I have reorganized our living room. Because of this, I had to move our subwoofer to a different part of the living room. This made the ribbon cable too short. I ordered a DB15 serial extension cable to get the extra 10 feet needed to connect the ribbon cable. I was hesitant at first not sure if it would work but to my surprise it worked great. I'm enjoying my sound system again.