Suggestions for Balanced cable between Luxman C900U and M900U.

A lovely system, the Luxman components.

For balanced interconnects, I’ve had great results with Mogami 2459 and Neutrik XLRs fabricated into cable assemblies to order from ProAudioLA. I compared the result to a pair of $2200 "boutique" cables from a well-known audiophile brand, and the Mogami was more transparent and more neutral.

If you are not averse to paying less than most audiophiles do, you could order a pair (probably for less than $100) and see for yourself.

I agree that when using balanced interconnects, I have not noticed important differences among them in most cases. The exception was when using the expensive ones mentioned above; in blind tests with experienced listeners, they were considered disturbingly colored.