Best speaker cable in the $2,500 range

You should consider speaker, speaker cable, and power amp together as one unit. Some speaker and amp combinations are more sensitive to cable changes than the others. I have experienced some very cheap cables out-performed some very expensive ones in my system. I would advise against setting a price point and only consider the ones at that price. I would try cables in all price ranges up to your budget including the very cheap ones like the Home Depot extension cord that I am using to connect BAT VK-75SE to Vandy 5. You might be surprised to find that the best matched are not necessary the most costly.

I respectfully disagree with Robert Schult’s statement. His statement assumed that the “goodness” of a component is measurable and it is absolute, but in reality neither is true.

Lets consider this: what does it mean by a good speaker cable? Is it low DC resistance? Is it low capacitance? Is it low inductance? Or maybe it is all three. But how do we know these three parameters are the only ones that affect the “goodness”? What about the material used like pure sliver wire, sliver plated copper, single crystal copper, OFC, etc… How do we measure their goodness? Or maybe there are other parameters that we don't even know yet.

Eventually, we still have to put the cable in a system and listen for the result. What if the same cable sounds good in one system but sounds bad in another, is that cable still a good component? How about my situation, I initially connected a BAT VK-75SE to a pair of Vandy 5 using Harmonic Tech Pro-9+ biwired, but the result was unsatisfactory, rolled off high and soft bass. I than replaced the Pro-9 with a pair of dyi cables made from Home Depot extension cord and everything has improved, high opened up, bass was tighter and better defined, mid-range has more details.

Now back to the “goodness” question: the Pro-9 is supposed to be a good speaker cable but it didn’t sound very good in my system, does that mean the VK-75SE and the Vandy 5 are not “good” components? Or maybe the dyi cable is “good” but the Pro-9+ is not? How can we tell?

At the end of the day, the goodness of a component still has to be determined by how it performs in a particular system and that means system synergy.