Every reply seems to think you have REL subs, but you do not actually say that. You only want to utilize a high level input to the subs similar to the way a REL receives its signal, correct?
I use the same speaker cable to the subs. However, instead of a long run back to the amp I use short cables from the main speakers to the subs. The speakers have bi wire terminals with lugs that accept spades and bananas. So, it's a simple matter to use banana connectors for the sub wires.
I use the same speaker cable to the subs. However, instead of a long run back to the amp I use short cables from the main speakers to the subs. The speakers have bi wire terminals with lugs that accept spades and bananas. So, it's a simple matter to use banana connectors for the sub wires.