Synergistic Research Master Fuse £565

I hear the brown fuses give your system a more earthy sound.

Useless without the carbon fiber outlet cover for $295. 

Many years ago Stereophile reviewed an amp that had the option of wood knobs which the manufacture claimed provided better sound. A knob. This is along the same lines of silliness.

The microphonics from a metal knob just are not present with wooden knobs.

The extra $3000 for those wooden knobs is absolutely justified.

The other day, on one of my amps, the input selector knob became loose. I noted that the setscrew was grabbing the extreme end of the shaft. the knob was too tall in my opinion anyway so I stepped into my shop, put the knob in a collet, fired up the lathe, and shortend the inside of the knob 1/8". Now it grabs the shaft perfectly.

I hope I didn’t change the harmonics of the knob. I’ll let it burn in for 300 hours before I decide.

Jerry