I purchased two USB cooling fans from Amazon yesterday, one to sit underneath each amp (like I saw someone do in the review thread), the fans have already arrived. I don't want to take chances until a lot of these monos have safely run at operating temperature for a while. I still await my amps., no word yet......My units have arrived and I’ve come immediately to inform other buyers/owners that the units do not come with thermal interface material between the heatsink and enclosure from the factory:
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-Ed