Seriously can a few inches of jumper cable really make a difference?
The suggestion of using more of the same speaker cable is pure logic seeing as you use metres of it before the speaker….
By introducing different jumpers, aren’t you just introducing some colouration to the sound, nothing more?
If your musical source has not made it to the speaker inputs, it will not come from anywhere else!
Surely it’s impossible to put more detail ‘in’ than originally there was before?
The connections/security and quality of the spades or banana plugs is the real issue, not the wires l think!
Thats my logic!
The so called ‘can of worms’ opens up……