Uneven soundstage help, please.


I've got a pair of ATC SCM40 v2's driven by a Musical Fidelity A308 (plenty of power) and overall I'm happy with this combination, given my budget, wife, and listening habits. My system is in an incredibly complex large room, with all sorts of variables in terms of reflection, absorption, etc. And these aren't exactly the same from one speaker to another. I have no choice about speaker placement, given the room configuration.
There's a phenomenon that concerns me, though, that I haven't been able to resolve. In order to get the center centered, I need to position the speakers and listening chair in such a way that the soundstage extends all the way to one speaker, but only three-quarters of the way to the other. It doesn't sound out of whack. It's just a narrower field than I had with my older KEF References, and I wonder if it would sound even better if this was resolved.
Has anyone else faced and solved this? What factors are driving it? I've been living with it comfortably, but I wonder.
Thanks ahead of time for any replies.
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128x128m669326
IF all is the same and only difference is the speakers used, dispersion pattern differences between the old and current speakers would most likely account for differences.

First though I would switch left and right channels to see if that reverses the soundstage. If so could be something different in one channel versus the other somewhere upstream and not the speakers or room.

Wider dispersion patterns tend to work well in more chaotic rooms with strange acoustics. THings will tend to even out better that way. Maybe the old KEFs had better dispersion than newer ATCs? Just wondering.

If it turns out to be the speakers and not the electronics, might consider a change at that point to find something better suited to the room.
Thanks, Russ. I think my best bet to start with--one that costs $0 and entails the least inconvenience as an experiment-- is to keep playing with speaker and seating position.
I wish I could employ room treatment or switch to another room or buy expensive equipment to fix things, but right now, none of that is practical. For that matter, how about a miracle cure for minor hearing loss? Or a lottery win?

I don’t think there is any way you can hookup an EQ or an external balance control to that integrated amp!
Yogiboy (an intriguing name): I didn't realize there were limitations with an integrated vs separates. Or is it just my amp in particular?
You need preamp out and amp in to hook up an external device. I took a look at that amp and it does not have that feature!