I received an i9 1TB SSD iMac yesterday and I too am a little disappointed to be able to hear the fans even when idling at 1196rpm 45 degrees C. I work in music with the computer directly in front of me between my speakers in a relatively quiet almost silent room, so the fans are noticeable. Having bought the iMac to replace my 2013 MacBook Pro (which I'd had down under my desk to hide the fan noise) it worries me that they'll only get louder when the iMac gets put to work more let alone in a few years time. I've tested it running a few Pro Tools sessions that the MacBook Pro was being pushed to its limits with and while the fans only slightly ramped up and the processor finding it easy..again it was disappointingly noticeable. Does anyone know how much quieter the iMac Pro is? Idling or otherwise. I know it has 2 fans rather than 1 and different cooling architecture etc. Am I dreaming to think that in this day and age there is such a thing as a silent Mac?