The following article is in PDF format so you will need Acrobat Reader in order to view it.Bose is well known for it's development of high quality sound for the home and car but it is little known that they engage in other aspects of design too.
Bose have created and tested a new type of suspension over the last 24 years. They don't use coils like the conventional systems but rather an electromagnetic motor.
http://www.bose.com/pdf/technologies...ion_system.pdf
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