No. The ONLY difference was the outrageous price tag and dumb celebrity endorsements on the CM. Big D did a dyno of one recently and it was pretty much just a cookie cutter Chinese catalog amp that didn't even make rated power.
I can assure you, if you pick something out of their catalog and then tell China you want that, but for 70% of the asking price they will find a way to give you something that looks identical but has 30% worth of corner cutting cost savings. They'll even tell you it's the same because in their culture it is meant to be mutually understood that you get what you pay for.
the easiest way to get the lower prices is to do what I learned many years ago when I was a dealer for a bunch of brands, spend more money
. He with the deepest pockets always wins! I use to sell stuff at dealer cost and still make a ton of money cause I’d buy so much at once
. The easiest way for them to cut costs and make everything appear the same is use lower grade magnets and a smaller coil (seen many subs that are suppose to be say 3” coils but are 2.5” or smaller when I took them apart
). I learned that those catalog prices are just a starting point, if your willing to drop 50k or more, they are very flexible.