Wow, didn't even check here for comments. Thanks Orjazzm.
Things getting along very well. the Sig 30.2 nicely powers the tight and musical Devores.
I've seen the Apogee Duet online, but not sure I need that functionality. my mac goes to Brick DAC via USB. DAC analog output then goes to Pre-amp. Control of Mac is via another mac laptop in listening room using netTunes or controlled by iTouch Remote app (but rarely). My mac is in a different room than audio system. What would the Duet add?
cheers,
ed