Made specifically for Mesa Boogie in the UK. As you can see from the pics one is a bit older than the other, differences are simply cosmetic, specs and performance are the same. Cones are in great shape. Per the Mesa site, these perform best in open back or ported cabs. They typically list at $100+ online, will part with them individually for $70 each, $120 for the pair. Cash at time of sale only, texts are best to reach me. Thanks for looking!