Collins America on Thursday introduced the BagAmp, a portable amplifier system geared for musicians. The system features the company's "Audio Piston" technology that eliminates the need for the rubber ring that holds a typical speaker cone in place. The flat-faced drivers, measuring 3 inches, are claimed to produce similar sound to many 5-inch drivers....
Source : http://www.electronista.com/articles/09/11/27/eigh...
Source : http://www.electronista.com/articles/09/11/27/eigh...