my 007 and green panel is quite loud as it is
wasnt for about the first month, then it just started one day
serviced the valve a few times and always the same now
 
I have a BMC and forge 007 and i think its quite loud. Not escort RS turbo loud but loud enough to be nice.

Lots of suction noise with a nice little dump on lift off.

Strange why you guys think its quiet?