HERE IS THE LEGENDARY McINTOSH MC 2105 FULLY SERVICED AND READY TO GO THIS UNIT CAME IN WITH A DEFINITIVE HEADPHONE SWITCH AND COME TO FIND OUT ITS KINDA COMMON AND THE FIX WAS TO JUST WIRE PAST IT TO DELETE THE HEADPHONE SWITCH AND DID A FULL SERVICE CHECKED OUT EVERY TRANSISTOR DIODE AND CAPASTOR HAVE BEEN CHECKED FOR PERFORMANCE AND REPLACE AS NEED TO INSURE GREAT SOUND AFTERALL THAT IS WHY YOU ARE BUYING A VINTAGE UNIT THIS AMPLIFIER COMES WITH ITS FACTORY DOUBLE BOX AND WITH BE INSURED FOR SAFE DELIVERY AND YOU WILL HAVE TO SIGN FOR YOUR PACKAGE. https://youtu.be/35x3bNn3dfo?si=KJ_BTwnlpTT1Duhp