Thanks for the help. Bought the attenuators, problem solved.
Help with distortion
I have a Marantz 4020 receiver. I have a Sony CD recorder and DVD player. On certain CD's--notably solo piano by Kenny Werner and Kenny Drew, Jr., which sound like they are recorded at very high levels, I get distortion that sounds like the input signal is too strong. With my cheap Samsung DVD player, they sound fine. What is wrong? What can I do?