thats its runnning, it smokes up and gets stinky as shit after about 7 minutes of straight playing all the was up. it aint a perfect box theres no such thing and its a decent signal. idk how it hasnt burned up truthfully. i had my friend johnny order it for me so he might has had rusty the the lvl 4 coils in it but im not the only1 running 1300 to a lvl 3, theres another kid in town here with same sub but he has the hifonics BXI1210 and thats cranking out around 1200