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DIY Jumper Suggestions

I would like to make a DIY jumper cable for my Mirage OMD 28's.  My speaker cables are NBS Omega IV which are already configured in biwire, but the OMD28's have 3 terminals on the back ("tri-wired").  Seeing that the length will be very short, I am able to go "flat out" on these jumpers ie buy some really nice wire.  Does anyone have wire suggestions?  I was either considering a very low gauge (8awg) silver plated military wire or something like Mundorf gold/silver wire.  Any tips appreciated.  Thanks.
tomask6
dgarretson
2,608 posts
 

Each speaker wire conductor is a stack of four or five 1/4" flat silver ribbons, each wrapped separately in plumber’s teflon tape.  It sounds similar to Duelund foil.

Each AC power cord conductor is a twist of ten 20awg .999 dead soft silver round wires, totaling around 10awg.

The key to avoiding that thin fatiguing sound is to use .999 dead soft fine silver (i.e. soft annealed)-- not hard wire. It is resolving without sacrificing smoothness and warmth.

Also using Total Contact graphene paste at the terminations...

https://www.riogrande.com/product/999-Fine-Silver-14-Strip-26-Ga-Dead-Soft/101078
dgarretson
2,608 posts
 
To clarify, I use silver foil for long speaker cables, but 8awg silver round wire for jumpers.  It's difficult to use bare, unterminated foil as jumpers.  And for jumpers, why would one want to resort to spade terminations with degrading solder and metal-on-metal junctions? 
grannyring's avatar
grannyring
6,546 posts
 
Agreed! Thanks so much! 
grannyring's avatar
grannyring
6,546 posts
 
@dgarretson 

Any reason you stacked them vs parallel (side by side) with a slight say 4-5 mm gap between the two or three runs. 
dgarretson
2,608 posts
 
I’m unsure which approach offers the least capacitance. I stacked them partly for aesthetics, but mostly so that the compact stack, bound together with one final jacket of teflon tape, can be drawn easily through a silk jacket for damping. For shielding, the silk jacketed bundle is then pulled through a tinned copper braid tube and finished with tekflex. Both ends of the copper braid shield are soldered to external ground wires. The ground wire at the amp end connects to earth ground. The ground wire at the speaker end connects to the metal driver baskets.
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