I have the same issue recording guitar as this thread, but unfortunately can't resolve it with the fix:
Via SPDIF, I'm sending both a dry and wet signal out of the Kemper and into Logic via a UA Apollo X4. The volume on the wet signal is fine, however the dry signal volume is significanly lower. Wet signal wave form at 50% in Logic, dry signal is down at 10%. The following settings are in place.
Kemper Input Settings
Clean Sens: Maxed at 12db
Input Source: Front Input
Kemper Output settings
Main Output: Master Stereo.
Direct Output: Master Mono
SPDIF Output: Git / Master Mono
Any help appreciated. Many thanks.