A deeper more holographic soundstage.

I read a lot of things written here as if they are gospel. I will give you my own experience.

Gospel? No. Physical reality yes.

If your speakers are two feet from the wall it's easy to calculate where you will have a null in the frequency response.

Sans room treatment it's a given echos front and back, sides may not be too bad given size and placement.


Speakers at 2 feet, 10 feet apart listening at about 12?  ... Some bass nodes at play.

Room correction?

You may very well enjoy your system but is the soundstage real or echo? Is it ideal? No.

A lot of random noise here. If you are happy with your gear and want to achieve a 3D Holographic Soundstage with scale and accurate instrument voicing, call Joe Abrams at Equus Audio. I’ve used MIT products since the late 90’s with excellent results. The new REV line Joe offers are extremely good and worth every dollar...they will allow your system to produce the most accurate rendering of an acoustic space possible.

besides room treatment the next important step is to get your digital equipment on vibration control gear. One example, my transport sits on TR bases from marigo, then his special shelf, marigo 4 40 millimeter vibration spacers, a granit mdf shelf, 4 six in. springs under that, and then another granit mdf shelf and then the final footers some kind of ball bering mini devices under that. Not only are taking out vibrations from your equipment but you are also dealing with earth vibration.I did this over ten years ago. More analog, three dimensional, cleaner sound than I ever thought possible. Vibration vibration vibration. This is the key to better sound.

Marigo audio is one of the kings of vibration control. Give him a call, he will help you greatly.

Look into BACCH4Mac or HAF digital signal processing.
I have no experience with HAF, but am using the BACCH4Mac Intro edition and probably will upgrade to the Audiophile edition (although it is rather expensive.) BACCH is a product of an acoustic research lab at Princeton University.

BACCH minimizes/eliminates crosstalk, manipulates the signal in the time domain, and can create rather dramatic effects on soundstage/imaging.  I'm told that effects from the more sophisticated ($) versions, "Audiophile" and up, can be breathtaking.  My own experience is that more magic occurs on some recordings than others. 
You won't hear much difference on, say, a Diana Krall recording (where all the attention is on one center image). But on one binaural recording, the apparent position of a trombone moved from at/near my left speaker to about 2 meters to the left of the same speaker.  Not only the speakers seem to disappear, but the walls of the house can seem to disappear.  It can increase the apparent depth and reverb. It does all this allegedly with no impact on the tonality (it is not the same in effect as room correction software or an old school graphic equalizer).

I have highly directive, hybrid electrostatic speakers.  These seem to work better with BACCH than some other speakers, so YMMV.  There is a 2 week trial of the Intro edition (and it's just software, so if you are not happy with it you don't have to ship anything back).