I’m convinced that as I age (61), my ability to decided between what should sound better interferes with what sounds better to my hears. I’ve EQ my setup with a MiniDSP. The frequency response is shown in Green and roughly +/- 3 dB. The response without EQ is shown in RED. The miniDSP is obviously doing its job in flatting out the response. However, the EQed response sounds dull and lifeless and I much prefer the sound of response through the MiniDSP without any filtering applied. Has anyone had the same experience with EQing to a flat response.
Preference is often what you are used to. Your ears do adjust over time, so give it some time. If after a couple of weeks it still seems lifeless, start to make some minor adjustments, or simply boost/cut the blunter bass/treble tone controls (if you have those).