yes they are. i used the kolossus for the big 3 for saftey precaution against the cca wire (KLMX i think its called). but i used the KLMX for my amp wiring, but im using the newest cables that they came out with a lil bit of flex in them, and i got to say, for $1.75 a foot, it is MOST DEF worth it if you dont want to spend over $50+ ON 1/0 ga wire alone. and it has more strands than mostly any other brand
well see heres what i bought cause the price was freakin awesome
http://www.sonicelectronix.com/item_23159_Absolute-P0-20-Silver.html
but it was 4guage rapped in a 0/1 casing total rip off