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

Damping factor
https://en.wikipedia.org/wiki/Damping_factor

In an audio system, the damping factor gives the ratio of the rated impedance of the loudspeaker to the source impedance. Only the resistive part of the loudspeaker impedance is used. The amplifier output impedance is also assumed to be totally resistive.

For the rest of that link, it is a mistake! This thread is the why. Those who tried it, are the proof.

Mr. batenet

The Inter-M R-500 phone in the US http://www.inter-m.net/_upload/product/2/R-150PLUS_dw_ae.pdf is not responding (not connected). I'll try the S. Korean when time will be proper.

I'm still waiting to your answer about the 10 amp's configuration.

I'm a bit baffled from this £275 amp, with 500W/Ch. In 8 ohms bridged, designed in S. Korea and made in China. The 10 sets of DIY 0 AWG may cost you close to the price of the amplifiers!

 

Mr, b4icu

Thank you for your effort you put down in research of Damping factor.
Have a simple explanation about so many amplifiers,my set up is a combination of hometheater and 2-channel for music,11 channels + 2 subwoofers with amplifiers including buttkickers with own amplification,2 channel with 2 bridged Inter-M 500 to upper registers and one 500 amplifier for left and right woofers with active crossover.Believe me this korean amplifier is a fantastic amplifier for very small money,but only the 500 model sounds good.So my expensive and powerhungry class-a amplifiers have to do service in surround channels,and for serious listening in two channel my Korea design "made in Kina" . 

Mr. batenet

Sorry, S. Korea is also not responding. None of the e-mails came back with an answer, and both lines (US and S .Korea) are not responding. The date on the data sheet is 2005 (11 years ago). They might change the phone numbers or no more in business. It is a dead end.

Some links say that the DF is high but no figures are provided. I would assume it is 500 and go with a 0 AWG for 8 ft. long.

Mr. mitch2

How is your DIY cables in progress are doing?

Any difficulties with the cable's ending? Please be kind to share.

When you are done and you share, please be kindly reminded to add the data as I asked for, to get all facts together. Thanks.