[oudplayer]

Balanced power may solve problems you have in studios...

... but it's very possible that the problems you have can't be fixed magically by balanced power.

If you don't have a solid ground, balanced power units won't work since they depend on having a ground for their operations. You would need to run a grounding rod first.

For my home, I bought a Liebert online UPS used on ebay for very cheap (like $150). I have essentially no noise from the AC line now (though the neighborhood I live in provides its own complement of strange noises). A balanced power solution would be a waste of money and amperage here.

At the studio I work, there were hellacious problems with getting a star grounding system operating properly. For whatever reasons, an Equitech solved the problems there reducing the noise floor by 22dB. No need for star grounding anymore.

I've also heard of people having good results with installing the Surge-X electrical panels, which cost about $500 for a 15-amp subpanel.

Whatever your problem and solution, avoid MOV-based surge supressors (including the older lines of Furman power conditioners) like the plague. They're guaranteed to degrade within a few years, ultimately adding more noise to your ac line.