Originally Posted by bakerwi
Originally Posted by deano86
Yes, unfortunately the design issue of the excessive heat coming from the video/audio processing chips located on the HDMI board continue to be an issue with Onkyo models... Why they don't have proper heat sinks on these very hot running chips escapes me.. I have an automatic thermostat controlled cooling setup on my 3008. It kicks in 2 cooling fans drawing out the hot air that I have sitting directly above the HDMI board on the back half of the receiver.It activates when the temp gets above 80 some degrees and automatically shuts off when it goes below. Works fantastic and haven't had any problems with the receiver.
I recommend fans to everyone using these AVRs, but that didn't lessen my issues with the unit. I've had my 5008 in for service 2 separate times for the same problems which Onkyo acknowledges. My ownership has been very disappointing to say the least.
It's a great shame that they seem to have carried over this problem from the x007 to the x008 series (unless it is, perhaps, only the early x008s that were affected, during the transition). The issue was well known on the x007s, although, to be fair, my own 5007 never showed any problems (cooled by external fans all its life) up to the time I sold it. It was partly instrumental in my decision to choose the 5509 prepro as the next unit - I figured they would get less hot than the AVR, but in reality, as it is the HDMI board that generates the heat, there's probably little to choose between a 5009 and a 5509.
HST, according to data released by Gfk, Onkyo has sold more than 7,000,000 AVRs worldwide since entering the market in 1987 and has a staggering 35% of the UK market, is the best selling brand in France and number 2 in Germany - so it's likely that the problems, disappointing though they are, represent a very, very small percentage of overall sales.