On Wed, Aug 19, 2009 at 12:20 PM, sergio masci wrote: > I saw a documentry many years ago part of which described how they made a > car door sound reassuringly solid: they added a thick piece of felt to the > inside of the door. It made a huge difference. "Luxury" cars have better sound proofing which is what I would expect creates a weighty sound from the closing door. The inside of the outer door panel is coated with something like dynamat (google it) which damps high frequencies. -- Martin K. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist