I've seen a lot of folks cutting open various brands of wire and weighing the copper, but not all copper is created equally. Even a .05% impurity in copper wire (arsenic, phosphor) can reduce its ability to carry current by over 15%.
In this video I test the impedance of several of the most popular brands of 1/0 (and one 2/0) and graph out an estimate of what that means for your voltage when you're feeding high-wattage amplifiers.
1. KnuKonceptz Kolossus Fleks 1/0 Tinned OFC
2. Sky High 1/0 Tinned OFC
3. Down4Sound 1/0 Tinned OFC
4. EB Flex 1/0 OFC - Welding
5. EB Flex 2/0 OFC - Welding
6. Windy Nation 1/0 OFC - Welding
7. KnuKonceptz Basik 1/0 CCA
8. KnuKonceptz KCA 1/0 CCA
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