Your power utility would probably have to pull new mains to your residence, which would cost big bucks. Unless you have a top-notch electrician, you can introduce some pretty serious grounding problems throughout your house with multiple mains panels. I know of one large house with a multi-panel setup that is a grounding nightmare.
I'd say it's not worth it. If you have the capacity in your existing panel, run a sub-panel. That's what I did. I have a 50A sub-panel dedicated to my big audio rig that's in the crawlspace directly underneath the system. My panel-to-outlet runs are about 3' long. Zero ground problems.
I'd say it's not worth it. If you have the capacity in your existing panel, run a sub-panel. That's what I did. I have a 50A sub-panel dedicated to my big audio rig that's in the crawlspace directly underneath the system. My panel-to-outlet runs are about 3' long. Zero ground problems.