' XLR cable is analogue balanced connection. It is just a balanced mic cable. 鴨寮街有好多choice. 自己 焊頭十分經濟。
However, if the source is SACD, it's better to use digital connection to enjoy the surround mode of the SACD.
Also, for regular product, it is always easier to get higher quality from digital than analogue, including balanced.
But I don't see your amp accept digital signal.'