looking to replace Fyne speaker jumper cable

Jafox with respect to you good silver cables can achieve what the OP wants to achieve on treble.But it has to be done right and with the right cable. Audioquest dragon jumper will be my choice. Is there any guarantee it will work ? No, This hobby is trial and error at times.The only way to know is try it.Cables should be match properly to the system. I agree cables should not be use as band aid.

In regard to Jafox's comment I have also preferred running the cable to the tweeter connectors when using a single run of cables to bi-wirable speakers.

DeKay

Dekay agree. Iam using the Jumper per Nordost instruction. It work well for my Redrose monitor and Diapason speakers and my wharfedale speakers.

I've tried these and found them a very nice improvement but always preferred 2 sets of speaker cables. Yes a lot more $$$

@roxy54 - "Purest" indeed.  Thanks mom.  😊.

I have not been a user of Purist Audio cables for 15+ years.  The product line was lacking resolution and too soft on the top.

Rather than spin your wheels on this jumper quest, consider trying a different speaker cable altogether.  The Wireworld product line is a good suggestion.  Another is Silent Source.  I just sold an 8' Silent Source Ref speaker cable pair for $2100. It has a bit of a mellow presentation but its tonal coherency is outstanding ....... and it's construction is silver wire.