Forward to 2020 for Pathos TT RR major modification part 2:
Nine
years after my 2011 capacitor upgrade I decided to "shoot the works"
with a 2nd upgrade to try to make the amp the best it could possibly be.
After discussing the amp and in particular its age (made in 2006) with
the folks at Pathos I decided to replace the big red capacitors, the
mother board, and power chip boards with the latest versions. The 1uf
coupling capacitors are now "world's best" Dueland Cast PIO Tinned
Copper Foil, and key resistors were replaced with Vishay Z-Foil.
Internal wiring was replaced with Stage III Concepts silver and Dueland
tinned copper hookup wire, and Bybee Music Rails were added. It is
breaking in now but is already clearly on a whole different level from
the previous iteration and significantly better in all aspects than my
modified Unison S6. Note that when the remote control circuitry failed I
had it replaced with a vintage Alps "Black Beauty" volume pot, which
sounds better to me. Kudos to Bill Thalman of Music Technology, Inc.
who did a superb job on this project and on the Unison S6 upgrade that
preceded it. See my photo gallery.