"It greatly reduced all the harsh high pitched noise and vibration from both fans while at the same time reduced the overall sound by making it duller as such. This is a bit like describing wine.
But anyway. It did work exceedingly well and was very easy to fit. Not so daft using a biscuit tin after all."
FULL STORY @ A1-ELECTRONICS (http://www.a1-electronics.co.uk/PcHardware/Various/AcoustiPack_Std_Feb03.shtml)