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?
adding a fan to an enclosed cabinet
Hello. I recently bought a cabinet to house my stereo equipment and sit my TV on top of it. I never had any real issues before with my amp getting too hot when I had it sitting on a rack that was not enclosed. Both my amp (Bryston) and HD cable box (Scientific Atlantic 8300?) get way too hot. What is the best solution for this other than leaving the cabinet doors open? My one thought was to add an exhaust fan (the type that would go on a computer case) to the back of the cabinet. Would I want to add an intake fan to circulate the air even more? The only ventilation that it has now is 3 1.5" wide openings running the height of the cabinet. Thanks!