Denon AVR and DSF Playback Problem

I have 3 Rpi4 piCoreplayer's. Two using USB output to DAC's and they run DSF files natively without issue. One has a Pi2aes hat using coax output to Denon AVR- X6700h. This one is having problems playing DSF files.

I have Dsdplayer installed and file types have DSF and DFF files playing natively.

With this config, USB outputs work without issue, but Pi2aes to Denon plays music, but with a loud hiss as well.

When I disable native DSF playback under file types, it works without problem.

My setting currently on the Pi2aes picoreplayer are:

Device supports DSD/DoP 0:dop

ALSA setting 8, 4, 24, 0, blank

Any thoughts on how to get rid of the hiss when playing DSF files natively to Denon Receiver?

Thank you