Speaker Asylum

RE: lossy joints

69.152.95.139

In Reply to: RE: REVIEW: Harbeth HL Compact 7ES Speakers posted by digiphobe on May 13, 2008 at 11:58:53

>> This of course flies in the face of conventional thinking,...

Actually one can make a very strong case of this type of thin-wall construction.

A speaker cone puts out as much energy to the rear as to the front when it vibrates. That energy needs to be dissipated as much as possible or some of it will radiate through the speaker cone and into the listening room. This signal will be completely out of sync with the desired signal being broadcast into the listening room.

By having thin-walled panels that are well damped, a lot of that rear energy can be used up in vibrating the panels. The dampening minimizes their own radiation.

Think of crumple zones on cars in a crash. It was discovered that by dissipating energy this way it was actually safer to be in a crash than in a car that was so solid that nothing yielded.

Same thing with a speaker. If you've got to get rid of excess energy, it makes sense to do it in a controlled manner.

Follow Ups:

RE: lossy joints - chocolate_lover9999@yahoo.com 10:26:04 05/14/08 (1)
- RE: lousy joints? I got dem! lol (nt) - rockadanny 15:55:37 05/14/08 (0)

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