It's a good sub for the money. It hits hard
I bought 2 of then and i got in love right away with then now i own 6 triple stacks 15 inch and im using then for pa application those subs are very under rated they are really good on the low frequencies and they hit hard make sure u use thick audio cables for it since u will need it to deliver the power they build for im usind pa cables with pa quarter inch conectors with a qsc 4thousand whatts rms to power the 6 of then my personal exp this subs on pa boxes hit harder on the lows than most 18inch qsc subs and evs and jbls by a mile not by a little by a mile!!!! U need at least 2 18inch evs together to go on the lows to match one triple stack 15 they are a little heavy so u need proper good boxes for the prices u dont gonna find anything better than this and the orions and ree audio they hit harder but they over hit really fast and for the price of then i can buy 2 audiopipe 15 triple stack and still have some money left for cables and 2 compare two one orion hit harder