Yes, as Unsound says, you are in over your head. If you don't know what bias current is or how to adjust it, then after the repair the amp will sound horrible and may even oscillate ( and damage your speakers )--even if you do solder the new parts in correctly.
Royy, have the repair done by a competent technician or sell the amp as is, but don't take any chances with what's still not broken. It's too bad, but things like this do happen and they cost money to fix. I blew the outputs on the same NAD amp not once but twice, doing exactly what you did.
Royy, have the repair done by a competent technician or sell the amp as is, but don't take any chances with what's still not broken. It's too bad, but things like this do happen and they cost money to fix. I blew the outputs on the same NAD amp not once but twice, doing exactly what you did.