HiDiamond Power cords...

Calloway,
You're welcome.

Yo2tup,
You are right -- YMMV. I have found that the best for my system are the M1 and F1. But they do not improve all cords. I tried them on a Bybee Ultra that is terminated with the 046 series and the M1/F1 did not improve the sound. Which tells me just how well-engineered the Ultra is. I have seen photos of a different Bybee PC that is in fact terminated with the M1/F1.

Yo2tup...thanks for the reply..that does make sense but, as you say, 'different sound...but not always for the better'..

Whoever has HD P4 that they upgraded from HD p3, what is the difference?
Thanks

@Denon 1, The P4 performance is greatly improved mostly in the silent / blacker background department. It is extremely silent and the soundstage is a few steps up to me. I would say the dynamics are greater and there is an improvement in the separation of instruments and vocals. Adding at least one P4 in your system is a must to add to the additional characteristic mentioned above to the already amazing dynamics, soundstage, detail, natural realism, focus and dimensiality.

Denon 1- The p-4 is quieter with a bit more bass weight and upper end extension out of the bag. As a thicker cable, it also takes longer to break in than the P-3. My p-4s are not broken in yet, so I can't tell you where they will be sonically in 3-400 hours. What I have heard is that they are pretty spectacular at that point, but won't know for a while yet.