Wondering if anyone can give me some advice. I am about ready to buy a compressor for our VA Hobby Program and am trying to figure out if I get a silentaire compressor or something similarly quiet can I possibly run two AB's at once? or not? Cheers.

I would advise against it. The small compressors don't have enough juice to provide that kind of volume.

If sound is an issue, I would really look to setup a high pressure CO2 tank. Barring that, you need a BIG tank and a small compressor, which is likely something you'll have to cobble together yourself as typically the compressor size starts increasing as you increase the tank size.

Get two air compressors.

When using two AB on a single small compressor, the pressure will pulsate on both AB because they will demand air at diferent intervals. this will le&ad to unregular airbrushing effects.

The best is, when silence is a must, to have several compressors. altrnative is to have a smaller garage compressor outside the room (noise) and to have a prressure reduction system for each individual airbrush, which will probably make it as expensive as two airbrushes