Andy Hewitt wrote:

If I'm missing something, I'd be interested to hear about it.

No, it's nothing to do with resistance, it to do with the fact that
each speaker can be moving at different speeds and directions. From
this there is a chance that the woofer can send distortion up the
cable and interfere with the tweeter frequencies.

Are you talking about back EMF from one driver affecting the signal going to
the other driver? (Presumably, that from the bass driver is of greater
concern due to it being rather higher power.)


You use a thick
cable to the LF to send raw power. The tweeter needs a cleaner
signal, so you use a thinner cable for that.

Do you mean that you *need* to use a thinner cable to get a cleaner signal?


By connecting the cables
at source, and separating them at the speaker, there is enough time
to prevent the interference.

In a single-run cable, how long does it take for the interference to affect
the other driver? And what happens to the interference in a bi-wired set up?
(Where does it go if it isn't going into the other driver, I mean.)


On a proper bi-wirable speaker, you actually feed the crossover points
separately, so the signals don't actually mix. If you bridge the
connections, you turn it into an ordinary speaker.

Yeah, that's what my speakers have - four binding posts with little metal
straps.


--
Wally
www.wally.myby.co.uk
Stress: You wake up screaming and realise you haven't fallen asleep yet.