Bi-wires links for speakers ?

You’ll get many different opinions on this. Yes, it is true that some manufacturers don’t believe in biwiring. Although Harbeth does not believe in biwring, they have provided biwiring terminals on most of their speakers to satisfy market demands. Chord Cable has dropped all their biwiring speaker cables as they maintain their stand that a single run produces better results than biwired cables.

The other good reason speaker manufacturers provide biwiring terminals other than following the "trend" is to give users the flexibility of biamping with a pair of amplifiers. That will only useful if the loudspeakers are demanding.

Coming back to the question of aftermarket bi-wire links. You may try some but personally I wouldn’t bother. The difference in sound quality would be minimal even if there is a difference. However, there is no harm trying if you have some money to spend.

Itzhak if your amp and your amp are Biwire capable, try both, but on my experience jumpers don't give you the separation like regular cables, what I do I use solid core to bass, and strand to high, it works for me..it might not be the same for you...

Agree with ryder, biwiring terminals is mostly for bi-amping, more power on tap makes huge difference in terms of dynamics and control.
One more thing... Plug one cable leg on the positive of the tweeter, and the other on the bass negative.

My McIntosh amp doesn’t have bi-wire capability and I honestly think that bi-wiring is not more than a voodoo practice (bi-amplifying is another story).
My speakers cables and interconnects are Tellurium Ultra black series which are very expensive but I got the luck to buy less than half price used ones from my dealer and I think if the bi-wire links will be the same as my other cables it will improve the sound but your comments above made me to reconsider the decision of buying them ,It’s better to take pair for demo at my home from my dealer and check this carefully before purchasing.