From this observation, this beautifully recorded disc duets gave the fullness of its purpose. I reached a rare level of detail and abysmal power serious concert with precision. I would not put any duo in front of another, it would be disrespectful. Know that all artists provide real performance that has been perfectly captured by the team that makes his body with the musicians. This CD is a small monument, he will not pardon on average too bad adjustment chain. But if by moving the speakers or changing the wiring you experience a clear improvement I will not be surpris.Outre musical qualities, DUETS CD is a real test for a system.