Does the 1.5m 75ohm rule apply to 110ohm?


I’ve read many times that 1.5m is the best length for SPDIF.
Al Marg’s (RIP) excellent explanations come to mind.
Does this rule apply to XLR 110ohm digital cables as well?

Please don’t turn this thread into a ’bits are bits’ carnival.
If you have nothing but negative opinions please don’t post.
128x128rja

Showing 1 response by oldears

IMHO the digital reflection on SPDIF cables is primarily due to the impedance mismatch when using RCA connectors. If using 75 ohm bnc connectors this "reflection" should be very minimal and length should not be much of an effect. Length should also not be important for aes/ebu cable if the 110 ohm spec is respected.