I think it might be possible. I emailed Sonosax about a year ago with a few questions and they said that they can do basically whatever you want. I am pretty sure I asked them about the conversion but it was a while ago, so...
I am pretty sure the lemosax outputs +48v, not +60v, so it shouldn't be too big a of deal.
Email them - they got back to me within a day....
edited for spelling