I personally love PSB speakers because they're well-engineered, neutral and sound great.
Paradigm Founder 80F may be slightly more expensive with a slightly peakier treble depending on your placement. (Other Paradigm lines have odd frequency responses so I wouldn't recommend them.)
I also think GoldenEar speakers are also well-designed with more bass but may not always be as well-refined sonically compared to other brands so the Triton 5 might be good for you too as you're upgrading from the X2T.
But my take is that if you like PSB, you can't go wrong with the latest generation of PSB speakers (unlike some other brands whose upgrades are just mostly a change to their frequency response to color the sound).