Hey ATLAudio,
Welcome to the site. Do you know if they plan on releasing balanced versions of those subs for studios and what not?
Call Tom- the owner, and he might be able to put something together for you with balanced inputs. He's very flexible. When you call he'll probably answer the phone!
They just changed amp providers, but I'm not sure if that'll help.
For low frequency, unbalanced is usually fine unless you have a super crazy long distance to run, or of course if your line out doesn't have unbalanced.