Which Audio Interconnect would you recommend?

I would suggest you try the TG Audio High Purity Silver Interconnect. A pair retails for $800 meter pair.

Give the ZCable Ref a try. A great sounding cable with great body and clarity. Excellent extension.
Mark Hampton is cool designer and classy guy.

I'd go for Canare's and spend the rest on good filtration and cryo'ed/gold plated outlets.

If you still insist on silver cabling I'd seriously consider the entry level Ridge Street Audio cables. They use natural insulation instead of plastics...

I don't know about the other two, but i wouldn't recommend the Kimber or Homegrown Audio for your specific system. In fact, i would probably avoid most silver cables all-together for your system. That's just me though. Sean
>

Coachp,

I think that you are barking up the wrong tree!
You need an interconnect for a subwoofer? The sub will be responding to deep bass from 20Hz-120Hz at the max. Probably you have it x-over lower than 120Hz. What, in the world, are you doing deciding among: Kimber Kable Silver Steak; Silver Audio Silver Bullet 4.0; Pure Silver Sound Quartet; and Home Grown Audio Silver Lace??
You are using less than 1% of the audio spectrum! The cables you are considering are full-range cables whose properties you will not even begin to use!
Both Psychicanimal & Sean give good advice. Get Canare, Acoustic Research or Monster Cable. These cables will get the signal to your sub w/ minimal loss.
Pay a lot of attention to providing clean AC power to your sub, placement of your sub for best integration & isolation of the sub from the floor.
IMHO. YMMV. FWIW.