TEACH ME ABOUT BI-WIRE


I see a lot mentioned about bi-wiring. I am not familar with this. I know you must have speakers that can be bi-wired and they are configured for bi-wire by removing a buss bar to seperate speakers and/or crossovers within the cabinet. I have also read that you need to have an amp that has bi-wire capability (two left and two right speakers outputs - and not to be confused with speakers A & B).

Can someone explain what takes place within each speaker when it is set up for bi-wiring? What are the advantages and disadvantages if any? What if my amp only has one set of left and right speakers outputs (but has something called loops for additional amps), Can you accomplish bi-wiring if you had two amps? If so how would it work?
sfrounds
Swampwalker, Thanks for the explanation, I now think I understand.

What is actually being done is running one additional pair of conductors to each speaker, so you end up with a total of four pairs. The two pairs from each speaker terminate together on the amp end, and are seperated or bi-wired on the speaker end. This in fact accomplishes what - decreases total resistance on the wire? - Allows only specific frequencies to run through each pair of wires? Curious!!

Are improvements in quality usually noticed?

I got confused between bi-wire and bi-amp, thanks for clearing this up. Maybe someone can answer my new questions

Thanks again
I have no idea how true this is but I was told that another reason you experience benefits is that the drivers actually create a small amount of distortion and it is picked up by the other drivers in the speaker. The bi wire isolates the drivers from each other eliminating the distortion.
All your questions will be answered at this website which
includes diagrams for bi-wiring.
www.home-cinema-guide.co.uk/BiWiring%20Guide/biwire.htm
Also your speakers owners manual should have some info on bi-wire set-up if you have bi-wire speakers. Remember to remove connecting bars between two pairs of cable connectors
if you bi-wire.
Sfrounds: Biwring is very simple. At some point, the signal from your amp has to be split in order to feed the individual drivers in your speakers. Normally, this split occurs at the speaker terminals. With biwring, the split occurs at the amplifier terminals. Does it matter where this split occurs? Electrically, no. The full signal passes through both wires, and exactly the same signal reaches the low- and high-pass filters feeding your woofer and tweeter, respectively. Assuming you're using the same cable for both runs, any distortion introduced by the cable will be identical to the single-wire alternative.

In other words, biwiring makes no difference. However, many people report that they hear a difference when they biwire. There are two possible explanations for this. One is that listeners tend to be swayed by the power of suggestion. The other is that there is some mystical, magical force that no one's ever been able to identify, but some day a new Galileo will come along and tell us what it is.

There is one advantage to biwiring, however. If you're the type of audiophile who actively seeks out cables that color the sound, then biwiring gives you twice as many opportunities to do so.