I use 30 foot balanced interconnects DIY'd with Oyaide PA-02 wire and Neutrik connectors. Of course, these could also be terminated with the RCA connectors of your choice.
Not cheap, but they don't break the bank either.
Another unbelievable value in balanced cabling is Mogami 2534 microphone cable. About $90 for a 50 foot run ($180/pair).
Not cheap, but they don't break the bank either.
Another unbelievable value in balanced cabling is Mogami 2534 microphone cable. About $90 for a 50 foot run ($180/pair).