How bad is this?

Have enjoyed bullet proof, amazing performance from my First Sound Paramount SE preamp for years until a couple of weeks ago.  Heard a loud turn on thump when turning on amp (SA/1 monos) and then loud clicking/popping noise when turning left channel volume knob up or down.  Switched amp feeds and clicking/popping noise went to other speaker.  Finally, did a preamp feed to integrated with bypass (direct amp feed) and got the same clicking/popping noise.  Left channel of preamp still seems to play ok, but right channel is dead quiet when turning volume knob.  Would prefer to have this repaired locally (Atlanta area) if possible before boxing up and sending back to Emmanuel (think he is in California or New York).  Thanks for your time and help.

Mike