If your library consists of mainly music with lots of sub-bass, then Valkyria won’t be a good fit. It excels with live and acoustic instruments, that’s why it really fits my tastes as I listen to mainly jazz and classical pieces.
Speaking off jazz... just put this track on. I love this Danish jazz singer, Sinne Eeg. I like her Danish version for the classic standard "Singing to myself", but if you prefer she also has this identical recording in English:
Meantime, a bit of a change of setup my end for the evening hours. Switched to the HD800s and Glenn OTL. The GOTL is an unusually powerful OTL amp; less refinement, moe bite, which works really nicely wtih the HD800s' in bring center image focus into its otherwise more difussed presentation. Very nice with the track above..