Hello. Megasam above is correct. What happens when a speaker is able to be biwired but isn't is that the woofer, with it's bigger magnet and higher power requiremnts, tries to ram it's signal back down the tweeters throat, so to speak, something referred to as back EMF. This causes distortion. Biwire them, or better yet, if cost doesn't bother you, biamping is the best. Remember, however, that one good amp biwired will be better than two mediocre ones biamped. Experiment as much as you can, and good luck.
Bi-wire cable versus 2 sets of cable
If I have an amp with 4 connectors (for bi-wiring) and speakers that are bi-wirable, do you get better quality sound with two separate speaker cables than you would with one set of speaker cables that are bi-wire (2 prongs on one end and 4 on the other end)? There would be a cost to two separate sets of wires, but is it worth it? Please help. Thanks, Scott