My cables are 2' and I keep my monos away by 1/2' since they have an output and power transformers that can inflict additional vibrations if fully attached onto the speaker.
Bryston Powerpack 250 for example, is designed to be attached right onto the speaker. In this case you won't even need any speaker cables -- just buy any good quality conductor and connect then directly.
Bryston Powerpack 250 for example, is designed to be attached right onto the speaker. In this case you won't even need any speaker cables -- just buy any good quality conductor and connect then directly.