(Hegel vs Luxman) vs PS Audio


Can anyone help me. Looking at Possibly moving from my PS Audio ( BHK Monoblocks and Pre) to Luxman C900 and M10 Amps (monoblocks)or to Hegel 30a amps (monoblocks) and Conductor Preamp [latest versions]. What are the differences in sound amongst these house combinations. 

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What improvements are you looking for, and what sound characteristics are most important to you?  Also, what’s the rest of the equipment in your system?

My other components are ps audio latest transport, Dac (for Sacd), p20 power supply, mola mola tambaqui for cd, streaming, Synergistic Research all Galileo SX interconnects and Power Cords, SR active Ground block, Lumin streamer with separate lumin power supply, Focal  Scala Evo Utopia.....

Looking for more soundstage(though it's pretty good now) just improvements (width,depth); more impact. 

I like soundstage definition and impact - (not just in base) and detail, lots of detail. Coldness should not equate to detail though.