Re: Silver Biwire Speaker Cable?

Lawrence Leung <[EMAIL PROTECTED]> wrote in 
news:[EMAIL PROTECTED]:

> Bruce <[EMAIL PROTECTED]> wrote in
> news:[EMAIL PROTECTED]: 
> 
>> Lawrence Leung <[EMAIL PROTECTED]> wrote in 
>> news:[EMAIL PROTECTED]:
>> 
>>> Hi, it's me again! :)
>>> 
>>> I'm thinking about making a pair of biwire with silver (or
>>> silver/copper hybrid) on top and a thick copper strand at the bottom.
>>> 
>>> Any suggestion on material and gauge size?
>>> 
>>> Thanks!
>>> 
>>> Lawrence Leung
>>> 
>> 
>> First of all, don't be shocked if there is no audible difference. 
>> 
>> How long are your runs? 10 feet?
>> 
>> Seeing as bi-wiring want to add impedance between the crossover
>> halves, you'd probebly want to stay as small as possible to maximize
>> the possibility of getting an audible result. So you'll probably want
>> to use 16 AWG(or equivalent) for the bottoms and 12 AWG(or it's
>> equivalent) for the top. The top half of the speaker you really need
>> to control the inductance, so it should be a larger equivalent.
>> Truthfully, you don't need the silver wire, it's only 6% or so more
>> conductive than copper, and far more expensive than that.
>> 
>> -Bruce
>> 
> 
> Ummm... I have a difference opinion...
> 
> I think a thick bottom cable like 8 or 6 AWG is good due to it allow 
the 
> bass to run through the center of the cable, as far as skin effect 
> concern for thick cable like that, I will will a smaller (like 10 or 8 
> AWG) on top to do the mid and high range job.
> 
> If that's the case, I can dare to use silver or silver hybrid to give 
me 
> a bright and clear sound when I don't have to worry about the bass been 
> missed out.
> 
> And yes, believe me, there is actually a big difference. I made a 8 AWG 
> cable and the high range is really a bit off.
> 
> Tell me what do you think?
> 
> Thanks for your input.
> 
> Lawrence Leung
> 

The idea of Bi-wiring is to increase the isolation between the crossover 
halves by adding additional series impedance between the crossover 
sections and work them against the extremely low impedance of the 
amplifier as a shunt element. If you minimize the impedance of the wire, 
you minimize the possibility of increasing the isolation between the 
crossover halves. 

Personally, I fail to see how you would be missing anything. As for skn 
effect, 12 AWG is as far as I would go. At 20kHz, skin depth is about 
0.5mm.(However, that doesn't mean that the rest of the conductor is 
unused.) -Bruce