I have the PL hybrid also and have been dealing with the same issues you’re describing. And that is with a tube DAC. In the last couple weeks I managed to solve (at least it feels that way) the problem.
I watched a YouTube video about speaker placement and followed the steps. I replaced my RCA and speakers cables with Cardas Parsec cables. These two remedies made an enormous difference in my system.
That said, a nice R2R DAC should also help out.
Thoughts on DAC option
Current DAC is the original Auralic Vega . This was a HUGE upgrade in sound quality from a Cambridge Audio DAC Magic.
And things are good right now. Well, mostly, it's not like we are generally blessed with freedom from the desire to upgrade!
And now I have an option of a Chord 2qute. My main issue with the current setup is the fatigue on some music. EDM is generally fantastic, however rock is often harsh. Voices are great.
So the question is whether the Chord could smooth off the sharper edges of things.
All feedback gratefully received.
System is:
Sources - PC and Auralic Aries Mini
Amp - Prima Luna Frank Hybrid Integrated
Speakers - Krix Harmonix 2
Interconnects and speaker cables are average but not the biggest factor here from what I can tell.