Square room Soundstage??

That is a TOUGH room size, about as bad as it gets for taming room acoustics and nodes. You're going to have a heavy bass node around 63-65hz, and a big suckout around 95hz, then another node about 125-130hz. Add on top of that early high-amplitude reflections from all walls, and you have a difficult setup. Square rooms essentially double the size of nodes and nulls because of being equidistant.

Your only hope is to treat every wall. I would start with something like GIK tri-traps in all 4 corners of the room, floor to ceiling if you can. Then treat side walls with 2" thick panels to tame reflections, treat behind speakers on the front wall with either 2" or 4" thick panels, and then diffusors on the back wall behind your seating position. Fortunately it's small room which will keep costs down. Also put down some thick carpet if you don't have it already, and use a fabric chair or couch for your listening seat (not leather).

Don't think about buying new speakers at this point because big or small, the room acoustics will impact them the same way. Without doubt the treatments will improve the situation considerably, but impossible to know if they'll improve it enough for you to be happy until after installation.

BTW, what speakers are you using?
As suggested room treatment is vital. Also any furniture or cabinet hifi rack between the speakers will prevent wide soundstaging. A small, open-shelved rig is probably OK. Look how many virtual systems have their rigs on the side wall or in the corner.

Have you tried corner placement? I also recommend the Sumiko Master Set method of speaker placement especially for challenging rooms.

Yeah. I am glad that might not be my equipment. I did somehow manage to get a crazy soundstsge in the room onetime. It was a weird situation late at night. My amp was picking up noise from just turning my light switch on/off. I still dont know if my amp has problem (recap), or power is not good enough. At least know the equipment is capable.

I using older Exposue XV Super, Exposure wire, System Audio 505s, cheap record player, Marantz 5004 cd player. Want to upgrading turntable to Rega RP3.

First I need to get this sound stage working. I pulled out everthing to a large room to see if I can get better results.

Just dont know how to know if I having problems due too poor room or amp having issues. The amp is old but people speak highly of the amp. It does seem to have great dynamics and musical factor. plus a nice phono stage. I know with a sound stage I will be very happywith this amp. My first attemt at Hi Fi. I am willing to re cap if nessary.