I just got a brand new ONKYO HT-S790 HTIB and placed it inside the tv stand with an open front and back. Just wondering why? for a couple of hours of zest from listening, the receiver becomes very hot, is this normal?
yes it all depends on how loud your playing your music if its loud that make the amp work harder adn if it normal temp's over a period of time yes it will get hot
I have a small fan on mine...I face in downwards on the top of the receiver. Keeps it much cooler. I worried about that since it is in a somewhat closed area in my entertainment center.
Having a similar issue w/ the same unit. Ran so hot it quit working after 2 hours. [three days out of the box] Thermal cutout I suspect. Went to local authorized service in San Diego. After a month [7 to 10 days turnaround is what they said] they told me that there was nothing wrong with it. I picked it up and plugged it back in, 2 hours later same problem. Wish me luck with third call to corporate support, maybe they will actually fix or replace it. If I get any answers I'll post what I find. [6 weeks and still waiting ]
I use 2 PC power supply fans on my receiver, 1 between the transformer and heat sink, the other on the opposite side of the heat sink. They blow out, not in. Works great.
You need to have 18 inches above and 8 inches on all three sides in an open area. I keep mine on an end table and have no problem when running volume at 45 for 14 to 16 hours straight.
As with many high output receivers you need a fan on them. I remember in college dorm this guy use to have a good size fan on his receiver. Anyhow, PUT A FAN ON IT. I have a very small fan...maybe 4" in diameter on mine. Gets warm, but never too hot nor does it stop working...and I crank it with movies on.