Uneven soundstage help, please.

For now, I found a way to widen the distance between the speakers. Barring kids and pets visiting--unlikely these days--they should be okay/safe from harm. Then I matched the distance from the speakers to the listening post as best I could. By necessity, one speaker could be exactly right, but the predominant-sounding side had to be 6 inches farther. It's not worth explaining why beyond fixed wood stove, side wall, no wall at all, intervening door, etc.
I figured what the hell, let's try it. So I experimented with toe-in next. Lots of toe-in gave me a strong, equally heard center but a narrow soundstage and a loss of airiness that I didn't care for. I switched to no toe-in, which hadn't worked previously, and lo and behold,I heard a distinct improvement in soundstage with no loss in any other dept. I had to wriggle my seating around a bit to make it work.
I'm happy for now. Someday I'll see how much better my system can sound by trying some of the things posters have suggested. Thanks to all. I really appreciate your help. I wish I could be more helpful to others here, but I guess I find a way to do it in non-audiophile realms.

Elliot, when I read about the remote controller, I don't see anything about balance. Otherwise, I'm intrigued.

Elliot. Never mind. I found a close-up of the remote and there was the balance control, allaying my insecurity. Do you know this will work with my system? I'd like to get one if it does.
Details: Deezer and Qobuz to Mac to Audioengine D2 DAC via USB to wireless D2 receiver to MFA308 integrated amp via RCA to ATCs. Where would it go in that chain? Do I have the right inputs, etc? Remember, I'm an idiot who needs basic instruction.

It definitely has remote balance, you can read the specs on the box in this listing. I forgot, remote mute is also often handy.

https://www.ebay.com/itm/Chase-Remote-Line-Controller-RLC-1-NOS/293767588499?hash=item4465e9aa93:g:z...

he does not take returns, I would not buy from him, which is why I gave you the other link.

btw, It has two identical set of outputs. I used to compare two different systems using that, no more. They say 'front' 'rear', because it came from early days of people messing around. It was sometimes put into a tape loop, I just run everything thru it.

Remember, there is no center, it is Phantom, and you control it's location (within reason) by equal or unequal volume from l/r. Bass player on the left of center can only be done by mixing more from left, but some from right

I'm sorry to keep bugging you, but... I'm still unclear where it goes in the system. Right before the amp as a preamp? So I'd plug-in my receiver D2 to it and then output from it into the amp?