It will be used in my wife's dance studio which has three classrooms, each of which needs to be able to play different songs at the same time (hence the need for three distinct zones). Each classroom already has a wall-mounted iPad installed, so that eiminates the need for mutiple Control:10/15.
I found a used Ensemble that is way cheaper than purchasing two more MC200's. Even if the sound quality is not as good as the MC200 that will be ok. They currently are using CD's which tend to get damaged or disappear or their own iPod's with low bit-rate files, so even if the sound quality is not as good as the MC200 it will be more than adequate.
I currently own one MC200 that I bought just to try out to make sure it will meet the requirements of the studio and be easy for the teachers to use. It exceeds both of these requirements and will allow my wife to limit the music that is played in the studio (ie music that is appropriate since young children make up 95% of her students.
I have it connected to my McIntosh MC500's digital input and the sound quality and convenience is unbeatable, part of which is to the DAC in the MC500. Assuming the Ensemble will work at the studio and I'm addicted to the MC200 I am thinking that I'll just keep it for myself. I would immediately replace te drive in the used Ensemble before deploying it.