The new mean machine 4000.1d is as good as the XX hifonics series, they are probably better than the old ones. I don't know much about the older ones but the new ones kick *** and you gotta be joking, they are some of the most impressive looking amps out there now.autotek, they are tanks between all my familys car we have 6 of em and they have never given us any trouble, even after 4 years, I wouldn't get the new autotek's however, they changed the design and they look like crap
Autotek and Hifonics are now both owned by maxxsonics, your very ignorant to call autotek crap, have you ever run them? The new autotek MM4000.1 is a monster, very similar to the colossus II but more powerful.autotek is crap, you gotta go with orion out of them.
look at the hifonics now tho, the collossuss is kickin ask.