I bought a couple of Volex cords about 6 months ago. They're on my Mackie HR824's. I don't know how they compare to the older Volex cords, but they definitely made a small but noticeable improvement in sound over the stock cords.
This was my first small experiment with power cords, and I was skeptical, but it seemed to do something. After that I did end up swapping the IEC end with cheap Wattgates.
This was my first small experiment with power cords, and I was skeptical, but it seemed to do something. After that I did end up swapping the IEC end with cheap Wattgates.