box is 7.5cubft tuned to 38hz, i have two runs of KNU 2/0 OFC running back to two SK-BT120 batterys. but i do have stock alt untill next week could that be the problem? the lowest i have ever seen my voltage is 11.9 and thats at full volume. the gain is set with a DD-1 no bass boost everything is good on the amp.
Subs are underrated as with almost all competition stuff. So even if he was at .5 on clean power and a good electrical they shouldn't be getting stinky. I'm going to say its either his box, electrical or its not setup properly.