Post in thread 'Really bad resampling of 44.1kHz/16bits files with Fixed Resoultion SPDIF setting'
https://forum.wiimhome.com/threads/...xed-resoultion-spdif-setting.6234/post-105671
Problems can happen, and I was referring to this old, serious case (which had normally been fixed). I was referring to the "fixed" case, etc. (have you engaged it?)
In other cases, if a pregain is heavily engaged, the DRC may be more strongly present, etc.
You need to check all settings that could affect the levels and impact the DRC, etc.