I needed advise as I was contemplating upgrading my sound system to enable wireless sources. There were many options and the RS Chelsea staff, particularly Raoul who was the professional looking after me, walked me through the various options with a great deal of patience. I was asking many details and was helped very effectively to consider all the alternatives. Raoul, was patient, knowledgeable and ultimately helped me make the right choice. In addition, he volunteered to swing by home on his free time to help install the equipment and get it started which was invaluable. He was very able in this and also very tactful as a sales person / sales representative of Richer Sound Chelsea