Integrated amp: jumpers versus cables


Which is better? I have twice today seen recommendations for replacing jumpers with decent interconnect cables but have also seen reference to higher quality jumpers...
I have an NAD 320BEE amp with Dynaudio Contour 1.3 MkII speakers and would appreciate input on this.
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It has metal jumpers--I think they may already be an upgrade from the originals, not sure. I have twice read reviews of this same amp which recommended going to IC's.

I"m just looking for the best connection possible (without spending an arm and a leg)

thanks to all responders.
You might as well try it. Chances are you'll keep them in and eventually use them for you next integrated. If you even had to ask, chances are you can't stop yourself from getting them anyway.
I have had countless amps and receivers with the metals jumpers I have Audioquest (made by Audio Advisor) and Pure silver ones and have tried the true Audioquest ones. I have compared them all and they do sound different from ezch other and diifferent depending on unit. Notice I did not say better That is ones onwn call.
In my experience it will a difference, one I've always heard for the better. You should find a nice set for under $50. You could also make your own pair. Easy w/a little practice.
I do notice that the 3,000 NAD integrated amp also uses metal jumpers. I find that curious (I mean, if IC's sound better).