Dmatthews,
Thanks for the reply and great username.
I THINK I have done all the settings right. On the Apollo Console I set the clock from internal to SPDIF, and set sample rate to 48 (I have tried 44.1 as well just to check).
Also on the KPA I go to the output settings and change the SPIDF clock to 48 and also tried multiple SPDIF outputs. Don't see any setting to change the Kemper master clock so i'm assuming it is always in master clock mode.
Still I get a crackle and pops and the Console clock flashes red on the SPIDF settings in console....
Wondering if it is a hardware issue or just one setting or something that I have done incorrectly....