Anyone tried the superlumina jumper cables?

Right now together with the Superlumina speaker cable, I have Siltech Classic 770L jumper cables. My speakers are KEF reference 207/2. As I continue to get more and more out of my ND555 streamer, I am now wondering what impact the SL jumper cables could have…any views?

Just remember that the cable inside your speakers is probably very standard copper. I’d say it would make very little difference to make that change. I am not saying speaker cables don’t make a difference I just think that the shorter the run the less impact on sound, in my opinion. I will add that my opinions come from building my own speakers and experimenting with different internal cables.
I’d use the super lumina on the mid/tweeter terminals and jumpers to the bass. The differences to the bass drivers are usually less audible.

With this in mind however I have been surprised at how much difference the jumpers can make on the sound. For instance, I switched the entry point of the speaker cable (jumpers linking down) to the higher plug compared to the normal lower plug (jumpers linking up), and the sound was very different. But ultimately I prefer the lower entry point with the jumpers moving up. This is why I believe SL jumpers may be worth listening.

You could contact KEF and ask…
Did they design the speakers to be used with jumpers when single wired…and if so, which jumpers did they use?