Split type A/C in Vocal Booth - tips to minimize noise?

Greetings everyone, I plan to have a very simple small rectangular vocal booth (about 6'x7' surface area and 8-9' high). Due to budget restraints, I will use a split type A/C (the ones advertised as quiet e.g. Mitsubishi or Daikin). Does anyone have any tips about where would be the most practical place to install the A/C to help minimize the noise leaking into the mic? I had thought if there were any simple cost-effective ways to perhaps 'enclose' the unit, leaving a hole/space for the vent, but then I would be concerned about whether this would somehow affect the A/C's operation?? Or perhaps the actual audible noise reduction may not be that noticeable anyway? My other idea was just to have the unit mounted openly in a top right corner of the room in front of where the performer would be singing (with the performer facing the A/C and the A/C facing the back of the mic). And then I would further help isolating the mic by using something like the sE Reflexion Filter which wraps around the back of the mic. Appreciate any tips or insights! :)

Hi "RockNRoll". Welcome. Please read the forum rules for posting (click here). You seem to be missing a couple of things! :) A split system only helps with one part of your HVAC. It only does the heating/cooling, but does nothing at all to provide ventilation, which is a major, critical, extremely important part of the system. So you will still need to add both intake and exhaust ducts to the booth anyway, and considering that you need a very, very quite environment for a vocal booth, it might be better to position your split system outside the booth, as part of an exchange chamber or even better as part of a proper ducted system with a suitable air handler. Also, The reflection filter won't do much to help with what you are proposing. That is not what it is designed to do. It is a REFLECTION filter, not an isolation system. It might help some with controlling reflections (absorption), but very little at all in stopping unwanted sound from reaching the mic (isolation). - Stuart -