Sierra 1 for near field / studio use?

[Jaybeez]

Resurrecting this thread has had a BFO (Blinding Flash of the Obvious) today regarding studio use of my Sierra 2's.
I run ALAC files from my iMac through my rig to listen to my Sierra 2's. The space also serves as a studio for demo and voice over recording. I used to mix on Studio Monitors, but switched to headphones a while back.
Since I use the same computer for recording, I opened Pro Tools and pulled up some files previously mixed on a set of Yamaha Studio Monitors, then ran through my normal route.
Wow ... just wow! The .ptx (ProTools) files play as easily as normal audio files, and I'm hearing things in the previous mix that I never heard before.
Thrilled to have this figured out, though like in the Wizard of Oz, the answer was there all along.