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
Shakeydeal wrote,

"Two things I would suggest.

Spread the speakers a little further apart, you have more real estate there to play with."

Actually, moving the speakers closer together frequently works better. I think it's audiophile nature to assume wider speaker positions equals better soundstage. Start with 4 feet and move out until you hit the sweet spot.

"Consider the purchase of a good tube amp. This alone will give you more body and 3 dimensional sound over the Rotel amp."

Now, that I agree with.
I have looked at prima Luna's self-biasing amps, these have 4ohm taps and I think would push the quads better than some other tube products. But I am worried about a tube amp's ability to push my speakers. 6ohm nominal, 89db sensitivity.
I said it before: buy a used Primare 30.2 or 33.2 and buy a tube pre amp. You will get a combi which is able to give you control, sharp individual focus and a wide and deep stage. And an involving sound.