From: Sundown Amplifier FAQ

[Silverbane 0]

another option might be knukonceptz klarity cable if u going to tear down....

and also, jacob sent knu a message concerning the ? of using home audio digital coaxial cable as a mono signal rca, he response was it was actually better but overkill, only diff is digital coaxial uses a solid core conductor, and more shielding.

I can't figure out, from the manual, how to wire a single DVC 4ohm to the 1000D? Can someone help?

The +'s and -'s are internally bridged, so if you are looking for 2 ohm on a single woofer, you can wire it so both of the positives on the amp goto the +'s on the woofer and both the -'s on the amp goto the -'s on the woofer.