You may ask this Q in the Grant forum... I have no reference to the Grant, but I have a friend that is absolutely in love with his Venom 3's.... I also trust his ears as he pretty much has my system at his house..
I'm still using the old stock cords in my stuff. I try to be in the "alot for a little" camp, budget-wise, and I tend to think power cables are more the "little for alot" camp.... My opinion and budget restraints speaking here...