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Given the small draw in wattage from the wall, most can afford to keep this amp on...all the time.
If I were building one of these I would use heat-sink compound between the module and the aluminum case to facilitate heat transfer from the module to the aluminum floor of the case. It's easy, cheap to do and it also couldn't hurt the longevity of the amplifier. Scotty
Though one thing to consider is that while Class D is (when competently done) more efficient at delivering power, it's not necessarily more efficient at idling than an AB amp. Also, my experience with other Class D designs is that they actually get hotter when idling than under load. That may not be true of the NCores, but it's something to consider.
... If I were building one of these I would use heat-sink compound between the module and the aluminum case to facilitate heat transfer from the module to the aluminum floor of the case. It's easy, cheap to do and it also couldn't hurt the longevity of the amplifier. Scotty
I also like that I don't need to leave them on all the time like my Simaudio amp after 10-20 mins The Ncore's sound the same to me.
Would it not make sense to mount the boards "upside down" (screwed to the top) of a finned casework?
Chris, were those temps taken with the amp just idling or during music playback when the amp was under a load.Scotty