50 degrees Celsius for your Diablo 300 is fine. I have a Gryphon Antileon EVO Stereo amp and in High Bias mode it reaches 60 degrees Celsius. I usually run my amp in Medium Bias mode so that it runs a bit cooler. Also, the difference in SQ between Medium and High Bias Mode isn't very noticeable.
How hot is too hot?
I am running a Gryphon Diablo 300 to drive a pair of Magico A3. My room size is around 3m*4.5M. I usually listen at around the 80db level, mainly to jazz and classical music.
My room temperature is almost always kept at 26 degrees Celsius in the summer. After operating after an hour or so, the heat sinks of the 300 often gets up to 50 degrees with the top cover at 38 degrees. My dealer told me these temperatures are normal but I feel this is hot (too hot?).
I should also add that the amp is placed on the top of a flat open shelf so there is no question on ventilation.
Any experience by other Diablo 300 users to share?
TIA!
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@cycles2 Thank you for your feedbacks. That is comforting to know. And I love this Audiogon brotherhood -- over 20 responses in a few days. My same question to the Gryphon HQ is still unanswered after over a month! |
I am the original OP and I would like to thank you all for your comments and suggestions. They are all very helpful. I just want to say that I live in Taiwan. We have very pleasant winters but the hot summers can roast you at 38 degrees Celsius. The government has regulated no public indoor temperature can be set at lower than 26 degrees and that should answer some of your queries why I keep such a relatively high temp at home. One thing however I notice is that the Diablo's temperature depends more on the loads than the ambient temp. It used to be around 46 degrees with my old B&W 702S2 speakers and now at 50 with my Magico A3. It stays around the same levels even when indoor temp is around 18 in the winters. Isn't that a bit strange? |
I don’t think it’s strange. Amplifiers don’t just supply power to any speaker you connect to it. Each type of speakers demands a particular load of current. Obviously this has much to do with the music or musical passage. If you think of an action movie in home theatre, some passages with dialogue are very easy on an amplifier but when helicopters fly and explosions are going off everywhere…the speaker is requiring more juice from the amp to replicate these sounds. It would be interesting to know what ohm rating the Magicos are and how that may fluctuate with demand. Also the sensitivity rating. I would imagine this would be different than you previous speakers. |
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