Pay the extra cash for the alt man and be careful putting 3k to that sub. It gets plenty loud but it is not really made for that. IMO longer lasting sub>>>>overpowering for a shorter life. Plenty of people say that they do it daily, but only few tell actually how and the amount of recones they go through. I did put that sundown 3500 to one and it did fine, but I am cautious about stuff like that so I set the gains to 0 for a better piece of mind. If I do something again I will go for SAZ 3k's.