Cool speakers: Bose Personalized Amplification System

Bose Personalized Amplificiation System
While researching speakers, I came across a new concept of amplification for musicians: the Bose Personalized Amplification System.

As I understand it, you place a Cylindrical Radiator speaker, combined with one or two optional Bass modules, close to the musician, and it takes care of ALL amplification, that is,

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