For the WT-600 I need to use banana plug speaker cables. Which is very very new to me. I have a monster cable version and another one that is a no name brand that came with the Eden (just says quality speaker cable). Both are gold tipped. The one that came with the Eden is only 3ft long. The monster cable is 10ft long. I always was told use the shortest length possible and the lowest gauge? How do you determine the gauge? These cables are the same thickness as an instrument cable so is this 18g? What kind of speaker cables u guys use?