Seeking more 3d imaging, deeper/wider soundstage


I'm considering replacing either my amp or my pre. My system is profiled in my system link. Which do you think would improve soundstage/imaging more:
Replace the P3? I'd consider used McCormack, or a passive line stage, but my amp clips at 5v, which is what my DAC puts out when using the XLR outputs, and I'd like to try those someday...not sure a passive is a good fit for my system? Plus I require a remote. That's a deal breaker.
Replace the Rotel RB-1080? I'd consider parasound (a21 is a bit too pricey for me), used McCormack, odyssey, maybe even older krell or classe. I want XLR inputs tho.
Budget is $900-$1200 for either. Music spans the full gamut, excluding hip hop and country. Room is small, 12x12x8. I'm going to throw up some affordable foam acoustic absorption this summer (foam factory). Thnx in advance.
realremo
try filtering your ac, borrow form a dealer to see if that also helps. Nothing fancy, try something cheap.
Great answers, obviously the consensus is to first move the speakers forward. I'll just add to adjust toe-in in small increments; it will affect your soundstaging.

Even when manufacturers or dealers say "no toe-in on these speakers," every room and system is different.
Thanks Bigkidz. Could you be specific? I don't know much about these plug in power things. Is that filtering needed or conditioning or creating new power? Or all the aforementioned? I think I am at the point I could do something about my power to the components. Thanks for the help.
Power conditioning may likely help as well but not so much until early reflections are eliminated via at least a couple feet or so to walls. I'd do that first. Its free and easy. Then see what some power conditioning can add.
I sold Rotel for over 6 years of time. It is a 2 dimensional brand, it can create maximum 1 metre of depth. Instruments and voices are on one line togheter.