I think the real trick is to get all those walkman wires corrected for direction. And don't forget reversing the numerous circuit traces on the circuit board. Why there's a cornucopia of tweaks right there.
Actually, unless I miss my guess, which is highly unlikely, there are no wires inside a Sony Walkman. That’s one of the advantages of the Walkmen - you can’t have directionality issues if you don’t have wires. Hel-loo! You don’t have issues with transformers, big ol’ capacitors, digital cables, interconnects, or fuses, either.
I have been on a tweaking mission.
Some work better than others
Probably the biggest was changing Quad 11L to ATC SCM19v2. Not a tweak as such.
SR Black fuses
USB to coaxial reclocker - Halide Bridge
Akiko Triple AC Power Enhancer
Audio Prism Ground Control spades
Akiko Audio Fuse Box Tuning Chip
Russ Andrews 'The Silencer'
Akiko Audio RCA Tuning Caps
Audience AU24SX RCAs
iFi AC iPurifier
Akiko Universal Tuning Sticks
Mad Scientist Nitro power cables
Eichmann Power Strip
RCA Shorting Plugs for amp inputs
XLR Noise Stopper Caps
Shumann Resonator Chatres SE4 with Teradak DC-30W PSU
Schumann Resonator Chatres Mk3
LOA audio tweak chip
Supercapped Power Supply feeding:
Beresford SEG Dac - supercaps, new clock, new RCA inputs on RCA and coaxial, SR Red fuse
Signal Ground Solutions SGS-1 grounding box
Still to come:
iFi AC ground cable
Applying Graphene Contact Enhancer
Black Ravioli pads