Great article on speaker wire. One related question is on bi wiring my B&W Speakers. Does Bi Wire have an audible difference than straight wiring? Thanks for any feedback on this.
This is a bit like asking "which religion is better?" In MY opinion, there are no audible gains from bi-wiring. Others will disagree. I suggest you try it and see for yourself.
Only if you don't have enough gauge. Remember you amp forms a circuit with the speakers so as long as you have adequate wire the resistance is negligible.
This has been debated, and requires some very careful setup. Some actually believe that if you compare to a decent single amp, most differences heard have more to do with improper setup than technological advantage.
Audioholics did a nice article on biwiring a few years ago where they delved into the math and what's known as a "Transfer Function" in signals analysis. Basically they modeled all aspects of the amp to speaker circuit with and without biwiring.
Their conclusion was that the the extra cable resistance *could* add some damping to the electrical path. However this was much, much lower than other factors like the crossover design, speaker impedance, and the amplifiers own output impedance -- so its audibility is questionable. My advice is to always try it for yourself, but "to thine own self be true." Don't fool yourself into hearing a difference (tough to do, I know). But if you have the extra wire to try it, no harm in a little experiment.
Bi-amping is a completely different story. Its benefits are great, but at two very big drawbacks: cost and complexity (extra amps and not plug-and-play).
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