I sell aftermarket power cables because I absolutely feel they make a difference. However, how much of a difference they make is very system dependent. In my system, which is quite resolving, they actually make less of a difference than in some others because I already have excellent power with a dedicated line, very high quality outlet on this line, and an excellent line conditioner. Also one of my main components, the Bel Canto DAC3.5VB is fed by their VBS1 power supply, so a high quality power cord on this power supply would be a waste, in my opinion. However, when someone hears the difference that something like the VBS1 power supply makes, even in a system that already has very good power, it's hard to dismiss the importance of good power delivery. Aftermarket power cords do work, but how much you may or may not notice is based on many factors.
