I voted Hifonics....
Why, because I currently own more than (8) of them and have owned a bunch more over the years...
I have them in my Blazer and I pound it like crazy....
I have never metered mine, but they have always seemed to produce what they are supposed too...
I sold one to one of my friends and put it in his Blazer, powering 3 JL 12W6s...
Then, Friday, we drove from St. Louis all the way to KC and pounded the whole way there, then this after nooon, we drove back home, again pounding all the way... It never shut off or started clipping...
I guess you take your chances either way... You have to decide for yourself...