Yep i downloaded the manual and it is also a DI.
I dont know how practical it would be though because in principle you are trying to limit the length of unbalanced guitar/bass cable so in the case of a little di box you can have it right there next to you and have the long run back to the console balanced, but the ultra-gain will more than likely be in a rack with comp and dsp's etc... but NEXT to the console, so in effect your running a long unbalanced run into the ultragain to be conected by a very short balanced run into the console.
I might be wrong but would'nt this be defeating the purpose?