What integrated should I upgrade to?


Hi folks,

Firstly, my apologies for yet another "what should I" post.  But I'd like to seek the advice of my Audiogon brethren.  

Currently, in my second system used mostly for TV viewing, I have a pair of Wharfedale Reva 3 floorstanding loudspeakers, a Cambridge Audio CXA80 integrated amp / DAC and an Auralic Aries Mini streamer.  Wired with transparent Music Link / Wave cables and Shunyata Hydra Talos conditioner and Voodoo Fire power cable to the CXA80.  

I've been itching to upgrade the integrated amp, as I figure it is what's holding things back from a resolution standpoint.  I moved a better DAC (PS Audio Direct Stream Junior) to the second system and it didn't make a discernible difference given the existing gear.  I then moved the Reva 3's up to my reference system and plugged them in and they sounded wonderful!  I've got a Luxman 590axII integrated in that system with the PS Audio Direct Stream Junior DAC.  The power foundation is nearly the same; using Shunyata Denali there.  

So it leads me to conclude that the CXA80 needs upgrading.  

I have been considering a nice used Luxman 550ax or trying the new PS Audio Strata integrated.  I kinda know what to expect with the Luxman.  The PS Audio would be a greater unknown, but has the nicety of everything in one box: DAC, Preamp, amp and streamer.  The money outlay will be more for the Luxman, but not a huge difference.  It will be used rather than new.  Though, I would need a cheapy DAC just to accept the optical from the TV.  

Thoughts on this?  
jasonsim
Well I just this week demo'd the Hegel H590 driving Harbeth M40.2 speakers & cabled with $10K worth of Cardas cables & I much prefer the sound of SimAudio,except through headphones,then the Hegel was better...
I have one of the beta test PS Audio Strata amps and am very happy with it. However, I do not use it as an all in one, since I love Roon so use an Auralic G1 Altair. The sound is excellent, it is well made, and PS customer service is legendary. 
+1 on Hegal 
+1 on tubes...I have PrimaLuna HP but there are lot's of good choices. 
I heard an Anthem str integrated amplifier. Hot dang! 
PS Audio also excellent choice.
But have you driven tubes lately?
If you are on budget the Luxman for sure otherwise a used Gryphon Diablo 300.Hegel is midfi compared to Luxman and Gryphon.