That's sort of unfortunate, really...even though having balanced power can be a bit of a wiring hassle, balanced power = CLEAN power. I switched from having that same (more typical in N. America) single hot-leg setup to proper balanced 120 V some years ago, and the results were amazing. You could definitely tell that the noise floor in the studio had dropped, and because of the phasing done by the balancing toroids, various clicks and pops and other intrusive powerline garbage were totally eradicated. And all of my gear worked just fine on that balanced arrangement, as well. True, it's definitely a hassle to wire, because mistakes in wiring that sort of thing (floating grounds, especially!) can lead to a lot of problems that you normally don't see in unbalanced power circuits...but, again, the results were worth the trouble.