QUOTE(anfieldude @ Jun 29 2009, 10:29 PM)
4ohm mode cuts the power to the speakers by almost half. My 875 and the 876 are not in an air conditioned room but on the top rack. Temperatures are similar almost steady at 57C. No problems so far. I believe with air condition they shd drop to 40C
From what I heard, you need to be careful abt running the amp in 6ohms mode, there is a possibility of damaged drivers, especially if u listen at reference volumes. The other possibility would be the AVR shutting itself off, the current draw might be too high and the AVR will go into protection mode.
Actually at 4 ohm might be cutting more than half. Posts on AVS say output is capped to 55-60W only.
Yeah I heard about those warnings as well, though it is often qualified by "if you listen loud". I'll have to run it a few times to see how it copes at 6 ohm setting. I'm certainly not listening at ref levels, currently my volume is -22 dB. What's yours?
Added on June 29, 2009, 11:18 pmQUOTE(kiam @ Jun 29 2009, 11:12 PM)
jchong, just curious how long have you been running in 6ohms settings driving the 4ohms speakers?
I don't think it is a good practice because lower ohms speakers requires more driving current. Setting at 6ohms at the AVR may stress the output circuit because you most probably drawing a higher current than the output able to supply (in 6 ohms setting) as you crank up the volume.
That day I ran it for 2-3 hours at my usual volume setting of -22 dB. I saw the temps rising but the protection circuit didn't kick in. Perhaps my listening level still within its limits?
This post has been edited by jchong: Jun 29 2009, 11:21 PM 
Apr 28 2009, 08:46 PM
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Of course my budget was < RM3k hence cannot complaint much-la
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