Greetings members, Kevin here in SF. I have purchased a used McIntosh amp ( MC61) from House of Music, here in the City. I have an NAD reciever that I'm using as a preamp, until I can get another preamp; hopefully a C-2200. Because I have to use the preout-main in section, I can no longer use the switch for the headphone amp in the NAD...I think. Am I relegated to going through the speaker B connection? Or is there another work-around, like going through the auxiliary section? Any help would be appreciated. Thanks in advance. K.E.