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!

joeylchan

@2psyop ....and one can diy the relative same by shopping ’raw’ computer fans.
Pick your size, db level, cfm, voltage....set it up so it/they light up with your device.

Been fanning since Houston, so been cool for decades now.

Have considered fanning voice coils, since I ’push’ some things harder than usual. 

@paradisecom

Think of the Class-A offerings from something like Krell

My ’little’ class A 80-Watt per channel Krell KSA-80 has to convect / radiate close to 700-Watts of power into the room whenever it is running.  It is too hot for the cat to sleep on - a very good thing - because cats and ventilated electronics otherwise seem made for each other

My Benchmark AHB2 with DAC3 HGC on the top doesn't get hot, but I placed the fan (on tiny feet) on the top, puling air up, anyway.   Noctua NF-A14 ULN fan is very quiet (12dBa) - non-audible in my room.  Any forced air, even smallest, is way better than natural convection (open shelf).  This fan, draws very little current from 12V remote ON/OFF 1/8" socket on the AHB2 without affecting its operation.  That way fan stops when amp is switched off.  The effect of the fan is strong - case is cold and heatsinks are lukewarm even at the loud listening sessions. 

Your 50 degC heatsinks are not very hot, but why not to extend life of electronics?  Each 10degC temp reduction extends life of electrolytic caps by 100%. 

My PS Audio BHK 300 mono blocks are warm to the touch when they’re just idling and can get down right hot if I run them above 90 dbs.