First, we list the actual specs of all cables on the site (KLM has yet to be added, but same spec as KOL - different material), I dont see that on Raptor's site or many other manufactures for that matter.
http://www.knukonceptz.com/assets/pdf/PowerWireSpec.pdf
The Kolossus in area is 66.8mm^2 and the standard for 2/0 is 67.4mm^2 so we really should not label it 2/0 as it is just under spec, thus why we call it 1/0. Every terminal I have checked the Kolossus fits, so to save ourselves from the "will your 2/0 fit my 1/0 connection" questions, we remain calling it 1/0. Most manufactures leave a good amount of tollerance for 1/0 so that our cable can be squeezed in there if you twist the strands after removing the jacket.
The price of copper vs the price of copper used to make wire - The raw price of copper is less then the cost of the material used in wire. Why is this? Becuase it has to be refined. The copper used in our wire is 4N purity. This is very common and used by most manufactures. It is usually not used in a welding cable, but this depends on the source of the cable. Because the material has to be processed, it costs more then the raw material.
Squeak's post is dead on, the KLM is an alternative to our eKo cable which was made to compete with the likes of Raptor, AudioPipe, and SoundQuest. Those brands are much smaller in diameter then our Kolossus. Customers needed a real alternative to those cables in the same price range but were true to standards made by American Wire Gauge. Thus the eKo cable was born. Copper rates have risen in such a way that making the eKo cable affordable was not possible, so we have brought out another option. The Copper Clad Aluminum cable (KLM) which we oversized to get the same electrical properties as those brands. And with its $1.75/ft price, we now are less expensive and providing an even better cable then those selling you more jacket then copper.