Thank you for your message, it's certainly an interesting one and I'll be completely honest I'm not sure. I am interested in the heat of the box however, this shouldn't be reaching high temperatures, can you tell me how you've got this setup and where it's being housed?
Hey My receiver is on a shelf under my tv with plenty of air circulation around it. My room does get very warm in summer though. Although I do have fan on and window open slightly for air circulation ☺. I have a tv cabinet with 3 shelfs in it. My receiver is on its own shelf.