[Original source of this image is wikipedia, IIRC, but I can't link there because they are on 24 hr strike to protest SOPA and PIPA.]:The proper term for biwiring is "using longer than average jumper straps"!
There's no difference to the block diagrams of normal vs. biwiring and buy (more)
wire proponents who try to claim that this simple "lumped element model" doesn't tell the whole story are completely full of BS, based on the frequencies we use for audio and the lengths of wire we might use, even in a gigantic mansion hundreds of feet long.
When you run a wire tens or hundreds of miles long, then transmission line theory applies, but for our living rooms? Not a chance. This simple block diagram does
tell the whole story. There's no audible consequence from splitting the signal six inches
away from the speaker vs six feet
, as long as the L, C, and R values are maintained the same for both.
[A possible exception where there could be audible consequences (simply because these values aren't
kept the same for both), would be for people who are using a dangerously thin gauge wire run to their speakers. When they double up their wire they are, of course, effectively using a much thicker
wire with double the number of copper strands running the length of their living room, and the lowered resistance
of this thicker wire may have audible consequences in such a scenario. Of course if they simply had used a single
run of thicker wire, from the get go
, then there'd be no difference.]
Other forms of obfuscation they often attempt to pull, are arguments regarding "skin effect", reflections, dielectric absorption or "soakage", etc, but don't fall for any of it. In the over half century that speakers with biwirable terminals have been on the market (actually made for other purposes, such as active bi-amping) , not a single paper has ever been published to support the claim that biwiring has any audible consequences. All we have are anecdotal stories under uncontrolled circumstances (sighted) and silly theories as to why it "could" make a difference, often promoted by the audiophile mythology based press. [Who unfortunately dominate the magazine stands these days.]
On the rare occasion where people do measure subtle electrical differences from biwiring, they almost never take into consideration this "double thickness" advantage their "bi-wire" system has and instead insist the difference is because "All the high frequencies know to travel only through this top wire (across the living room) and of course all the low frequencies know to travel only along the bottom wire."
They seem to not understand that the "frequencies" have no intelligence and haven't even passed through a crossover yet at this stage!
"At audio frequencies, speaker cables are not transmission lines. They are merely cables, with inductance, capacitance and resistance. Despite popular belief, they are bereft of any magical properties, only physics."Source
I'm outta here (and unsubscribing) so don't ask me any questions.