Head shell fix This picture shows the re-assembly of the driver dampening materials to the head shell. I reused the original felt and foam. There was a spot where the wire enters the head shell that I added another strip of foam. Since this is my first HP-1 refurbishing job I decided not to add any caulking to plug the vents in the head shell.
 
   
  I did add some additional dampening by cutting out and shaping a piece of felt (for each head shell). This felt piece was placed between the driver and the original foam dampening pad.
 
   
  The right ear head shell with the driver and dampening re-assembled.
 
   
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