DSP Up-Sampling features in Roon 1.3

Hi all, after much experimenting with different filters, PEQ settings, and dB biases I’ve decided to turn off DSP in Roon. I use Roon primarily with headphones so I don’t use room correction.

I find the DSP module saps air out of the music. The result is a bit muffled and constricted compared to just playing bitperfect to my DAC. I don’t have a very fancy chain…straight out to an Oppo HA-2SE and to a headphone amp.

Am I doing something wrong? I would like to use the DSP–primarily to tweak EQ–but not at the expense of the sound quality degradation I’m getting.