digital out

Hey forum. I've just got myself the MOTU Ultralite mk5. Big part of deciding on this was I wanted something with digital output. It's connected to my Neuman KH 150s via the S/PDIF out. There's one thing that's annoying me though - on the front of the unit there's a hardware volume control...

I'm searching for DAC/Headphone AMP combo which would have: 1. Multiple source inputs - 3x digital inputs. (USB, TOS and COAX in) 2. 1x digital out to adapt to AES Active Monitors (Genelec) 3. Headphone AMP - Single-ended analog output. 4. Optional: Balance XLR out The idea behind it is to...