I believe your gear is just fine. I would listen to @rbstehno and take a serious look at room treatments, either acoustic or electronic, or a combination of both. May not be as sexy as some new gear but I think you would be very pleased with the results. BTW I would put DSP in the catagory of electronic room treatment and if done correctly can be very effective.
As far as brick and mortar audio stores in the Twin Cities, I am aware of five.
Choice Audio which was previously mentioned. https://choiceaudio.com/
Mpls. HiFi https://www.minneapolishifi.com/
I believe these first two are the new kids in town. There is also,
Audio Perfection https://www.audioperfection.com/
HiFi Sound https://hifi-sound.com/
Stereoland https://stereoland.com/
These last three have been around for decades and still seem to be going strong.
I’ve done business with Audio Perfection and I believe they know their stuff and what they are doing, but they can be a bit pricey.