Jdec - Sorry for the late response, I don't frequent these forums and get no notification of new activity.
Anyway, the Auditor M's were neutral from about 70Hz up through the treble, but they are a small speaker and sounded like a small speaker in the bass. Other than being well-behaved from the mids on up, the detail, imaging, soundstaging, and treble extension all seemed satisfactory rather than exceptional in any way.
The 805Di on the other hand had exceptional detail and imaging, and bass deep enough that I would not be left wanting when listening to most music. The trade-off being a bit of disconnect / character mismatch between the sound of the midrange and tweeter and some mildly unpleasant sharpness in the high treble.