Originally Posted by dowop
I have a 3009 & without the cooler on it it runs at around 35-37c & feels barely warm to touch. With the cooler on it never goes above 29c. Most of the time it stays right at 27c.
The good news is there has been a large improvement in energy efficiency with at least some of the latest Onkyo receivers. It only taken over ten years of consumers enduring Death Valley heat and a severely tarnished reputation.
Looking at the larger picture, the Onkyo AV Controllers generated as much heat as receivers, could not be upgraded, the custom installers were a Bit** to get service and only they could best calibrate your system, as Onkyo locked up the access.
If the firmware was updated, the settings were lost. Cough up another $350! If you changed your system configuration, then the settings became useless too. Cough up another $350!
Yet the discriminating consumer mindset was "where do i sign up?"
I've always stayed away from Onkyo, even though they were extremely popular at here AVS as every generation was pushed by Stereophile and Home Theater Magazine.
Repeatedly the most experienced members posted they weren't happy with the sound quality. Then finally Kris Deering came clean
"Fine detail in recordings sounded better than ever, and the slight harshness I occasionally noticed in the midrange is gone."
The ultimate irony is the brightness and hardness consumers were noticing was no doubt caused by extreme amounts of digital signal processing promising to correct all issues with the sound quality.
The fact is digital processing by its very nature generates RF and can easily contaminate analog signals and is completely unrelated or correctable to "tone controls".
Of related issue take poorly shield HDMI cables connected to the back of the receivers. The RF interference is spewing out from all these cables into each other an into the receivers both electrically or coupling through the air.
Even the smartest guy here (M-code) is clueless to the multiple failure modes occurring simultaneously. Some things must be gifts?
Or take the $0.50 digital switching wall warts spewing RF and contaminating all the expensive interconnected gear. This is what is occurring today and even the experts are clueless.
The fact is room correction is largely beneficial to the bass only
Now after ten years of dissatisfaction, with everyone being literally burned out, Onkyo was forced to make real improvements. Ironically, yet once again no one notices (i have inspired help here).
In summary its great to see Onyko reducing heat and improve sound quality.
Now they need to deal with still too inefficient class A/B technology
and their reputation being in tatters.
Hey i just may buy an Onkyo as the feature set is great!
Just my 0.02 cents!