Noise Level Results
With 7.5V running through the fans, both fans attached to the cooler too, I got a reading of 38 dB of noise level. That isn't all fan though, my sample had a rattle that was obviously audible. I thought at first it was the sides of the cooler, but I was lead to think the rubber fan mounts allowed for an oscillation that makes the fins jiggle a bit.
When I delivered 12V to the fans there was a noticeable increase in noise levels to 53 dB. It is in the top half of the charts, but honestly there is nothing innovative or surprising about this cooler or its performance in my testing.