I have a fan blowing on m equipment rack as a whole but I’ve always done that not in response to owning an Onkyo. I did do a stress test to see what my Onkyo 3007 could handle before deciding to keep it:http://www.axiomaudio.com/boards/ubbthre...true#Post277837
Since then I’ve never had any problems with it shutting down even during 16+ hour movie/gaming sessions at 80dB reference volume driving 3xM80s, 4xQS8s and 2xM22s at the same time. M80s crossed at 40Hz all others at 80Hz.
I can’t find the post right now but in one of the 2 Onkyo 3007 threads as AVS one member posted a picture of 12 computer fans arrayed 3x4 across the top of his 3007 pulling the heat up and out of the case. Seemed a bit excessive to me.
P.S. if you read my next post in that thread I did get it to shut down after about 5 minutes when I bumped it up after 2 hours at 100dB to 105dB.
P.P.S. YMMV and all the other usual disclaimers.