www.qfactor-audio.com , Qfactor , sound , acoustics , audio , music , Connell .
The Connell Corporation of the USA is famous for its unique technology in the trade of professional hi-fi. At present, they totally have two factories: one lies in the USA, another in England. Besides, in the USA, the mainland, there is a research institute called EST, which is a medium-sized transnational corporation.