Where to use aftermarket power cords?

In my opinion, they're equally important. It really depends on how the power supply design in each unit.

I'm guessing that you have the budget for a single good cord and want to put it where it will do the most good. You can certainly have fun swapping around, and draw your own conclusions, but IMHO Nrchy is on the money. With this particular upgrade, the most improvement in my system came when I put a high-end power cord on the digital source. (With transport and converter separates, the DAC is usually the place to put the cord, but in one of my setups the opposite was true.) The preamp comes next in priority after the source. Changing the cord on other components may have a less noticeable effect.

I found that I got the LEAST impovement using it with my digital front end.

I have had two different digital front ends; a Krell/EAD combo and now a Marantz. The result was the same with both.

The rest of my Krell gear; preamp, x-over, and amps, were all greatly improved.

Richard

I noticed that my responses to Audiogon threads have been much more insightful since I started using an aftermarket power cord on my PC. My spelling has improved also. I don't know of there is a similar effect on Macs.

Well, I am a Mac user and after reading Thsalmon's post I thought that i wuld try a oopgrdad power krd on mi komputr soi treyed it and luk whut 343 2#$%# 5$b ???*>%F>!!!!

So I put it back on my CD transport and I'm much happier. By the way I've tried upgraded cords on all my gear and the best improvement by far was after I put them on the digital front end, especially the DAC.

Go figure...