No one actually knows how to lculate what speaker cable they need


It goes back to cable manufaturars, mostly provide no relevant data! to sales and the users. None will answer this!
Whay do you think that you own now the optimal cable to your setup?
I think I've figured it out. 


128x128b4icu

b4icu,

Thanks for all of this. I completely forgot about the weight which may become an issue. I guess, I could try with a little thinner cable that would be easier fit. It just seems like some easy game that is not that hard to do and costs quite close to a dinner for two around here. I think that it my case it would be sonically completely unimportant, but why not try. If my cables were any shorter, my speakers would be called headphones.


I am sure you have noticed the difference in attitude that other posters have towards your original post and ideas after you have started explaining your thoughts and giving practical examples. Now, if everyone tried to do what you suggest, we may get an answer if you are correct in your convictions about cable manufacturers. Luckily, there are other threads that deal with that.

Mr. twoleftears

A 4/0 AWG or 0000 AWG has a cross section of "only" 2x a 0 AWG as well as better resistance.
By the AWG table, the steps between two consecutive AWG cables is not twice as good resistance.
When I write 2x 0 AWG, I meant two 0 AWG cables in parallel.
When I write 4x 0 AWG, I meant four 0 AWG cables in parallel.
If you could use two mono blocks, placed next to the speakers, or back to back, it would be way thinner.

When someone have a fireplace between the speakers and requires 20'+ to make the distance between the amp. and the speakers,

It takes the extra thickness, to compensate for the length.

The cable resistance formula: R = ρ x L/S when ρ is the cooper conductivity (1.68x10-8), L is the length in meters and S is the cross section in square mm.

If length gets twice longer, so needs the cross section, to keep the same resistance:  R



OK, had to run an errand, so I stopped in Home Depot to check out 0 AWG wire.............Smallest/largest they had on hand was 2 AWG.............My God, the stuff is huge, heavy and stiff and this was stranded, sort of..............I'm not an electrician, so I wasn't quite sure what to expect. The biggest stuff I've used around the house was 10 AWG.........Cut a couple feet of this stuff and you could beat somebody to death with it!!.......I can't begin to imagine how you would properly connect it to binding posts or terminal strips.................Did I mention that it's huge?         and that wasn't even the 0 AWG I went looking for......Amps and speakers, at least the ones I've seen and own aren't set up for anything nearly that big, heavy or stiff...............Hope you have a workable fix for that little problem b4icu!!...................The upside is that it's pretty inexpensive by audiophile standards, especially if you can keep it on the shorter side. At least from a cost perspective it would be a reasonable experiment.
Quick check of car audio sites has "speaker wire" in the sizes we're talking about. The stranding is very fine and likely to be much more flexible than what I saw at HD today. That had 19 strands, each of which was quite thick and not bendy.............The weight and size will still be about the same I guess............0 AWG is still 0 AWG..............Starts to get a bit pricier though since now we're talking about speaker wires Vs welding cable!!......Anything "special" costs more :(
Sonicelectronix.com............NVX "0" AWG, OFC, high flex, silver tinned. On sale $170 for 50 foot roll, free shipping.......Any takers?