Why don't upgrade the wires and components inside our units?

I've rewired every single inch of internal wiring on Klipschorns, also spec'd silver litz and diy modded in some Duelund internal wiring on my custom build 300B monoblocks. My 845 SET and pre have no wiring to replace.

Obviously, I've determined internal wiring at least as important as ic, power, all external wiring. DIY capability makes it doable for me. Sending off to tech would be obstacle for me so understand those who haven't done.

No doubt modding is steep learning curve. One has to limit change to one variable at a time, experience and/or research into particular parts sound qualities critical.

Listen, determine what you don't like about present sound, change out what you think is offending part with the chosen new part. Certainly, there is chance new part may not be to your liking, in which case you try another. I've had to go through this exact procedure any number of times over twenty year of modding. With experience these mistakes become much less common.

My present dac and custom built 300B monoblocks both use silver wired transformers.