This purchase was an excellent upgrade replacement for my Bose L1 1S with B1 System! If I had known how much volume with clarity was available with L1 II System (along with B2 Bass module being a great improvement), I would have spent the extra money up front. Also, 2 day delivery was great! No complaints, easy set up, and performs as Bose always does. Sam Ash service and information was great as usual!