From Modwright:

Tube Modification for the Oppo UDP-205 4K Universal Player and DSD DAC!

Price: $2495 (Modification Only)

Tube mod includes:

  • Total redesign and replacement of op-amp based stock analog stage with a fully balanced, pure Class A, tube/transformer coupled analog stage (6922 driver tubes)
  • External PS 9.0 v. 10 with tube rectifier (5AR4, GZ34, 5R4GYS 5U4, 5V4 and equivalents)
  • Truth umbilical of our own design
  • Highest Quality resistors in key signal path applications
  • All MWI M-type capacitors in signal path
  • External supply available with optional hole to allow for use of taller, larger diameter tubes other than 5AR4/GZ34 (just ask)