[K Roche]

Originally Posted by dominicperry

Kyle,

It doesn't make any difference what's connected - I've tried it with just the power cable and it behaves the same way.
When it is connected to things, I'm using:
240v power cable,
Cat5e to the computer (Mac Pro 7.1),
Two TRS to XLR cables from the main monitor outputs to a power amp.
No line ins, no mic pre ins, no headphones, no DI/instrument inputs.
All inputs are set to line in / bypass mode.
Ambient temperature is 20-21C (68-70F).

Mark Corbin has told me that the heat is not something to worry about and the new fan profile has been extensively tested, so that reduces my concern there.
It does sound like other people are using a rack, whereas I have this sitting on the desk next to me, propped up on some 1/2" high neoprene feet.
Perhaps if I get a 2U rack bag or desktop rack with sides the noise will be less apparent. I might try that next.

Dominic

You might want to get a db app for your phone and see what reading you get.