adding a fan to an enclosed cabinet

I did that with my cabinet. I chose a 110 volt fan with the quietest motor I could find. Around 27-28 db as I recall. I mounted it to pull air out of the cabinet, and towards the bottom where my amp is located. It kept the amp as cool as if it was out in the open. Quite successful in that regard. My cabinet, though, is more of a "furniture" grade cabinet that an "audiophile" cabinet. The rear wall is thin plywood and unfortunately acts as a sounding board - and tends to amplify the motor vibration. I even used rubber grommets when I mounted it, so there is no direct contact between the fasteners, the fan, or the plywood. Do you have a relatively inert and solid surface on the back of the cabinet to mount a fan onto?

A friend of mine does the exact same thing you are thinking, I believe he uses a variable power supply from Radio Shak so he can control speed.....and thus noise. Computer fans can be had very cheap.

sononorway, sounds like my situation is similar to yours. It's a piece made by a regular furniture company. The back is thin plywood (or fiberboard)-maybe 3/8" thick. I'll check radio shack and see what they have to offer and pick up a couple. thank you both for the replies.