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
Tboooe - I screwed up the numbers ... it is actually 12x12x8, including the alcove. Still haven't had my first cup of coffee this morning; in any event, it's a square box.
Rlb61, thank you. So your room is a lot like mine except the ceiling and opening behind the listening position of my room. given your ceiling height did you consider any panels up there? What about your floor? Do you use a rug?

BTW, are you on the west coast? Its still kind of early out here. I am in Socal.
Realremo, now that you have sorted out that phase was a problem, it is worth it to play with the speaker placement again to get better results. If you were doing that with one speaker out of phase, the speakers will not be placed correctly.

Have fun!!
Atmasphere, The right speaker was out of place because of several re-alignments due to impromptu visits from friends, auditioning Sky ICs vs my current King Cobras. I re-positioned the speakers last Sat night, using a tape measure from the seating position and side/back walls, and this was previous to the phase experiments. Imaging improved, and the late-night phase swaps tell me that when I had the speakers on the long wall earlier this year, they were hooked up out-of-phase. Having moved them months ago to the short wall to get better distance from the speakers, the hook up was phase-correct, so I was hearing a totally different (...and correct) soundstage compared to the previous setup.

Even with all these improvements, the image still hovers around the speakers, it's wide but there is not much depth to it. Future experiments will include both sound treatments *and equipment upgrades*...my timelines are measured in months and years, not days and weeks, gentlemen.