MacMinis are quiet, but they have a fan, and that fan makes noise that is audible from the listening chair.
Ideas for a simple soundproof "box" (if I recall correctly, in cinematography this is called a "blimp") and soundproofing materials that in combination still allow for the Mini to "breathe" adequately and eliminate the fan noise?
Don't know much about the AcoustiPack, never use it. I don't think you need to spend $50 for a piece of foam. I would try some packing foam first, or even a thick cotton towel might work.
The MacMini is very quiet. I can't hear mine more than a few inches away. If you can hear its fan from the listening chair, the noise is most likely caused by reflection from the back wall. Or if you put the mini inside a cabinet, the vibration may be causing resonance and thus fan noise is being amplified.
You could put some Vibrapods underneath the mini to stop the vibration from transmitting to the cabinet and put a piece of sound absorbing foam behind the mini to reduce the reflection.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.