lol playing music at 160db is very very loud lolthat he wouldnt', i'd be glad and proud if he did, how loud is 160 actually is let's say that car is comming down the block, also he has 2 2400d by directed so with those 2 amps and 4 subs i'll lose the bet?
If you can hit mid 140's with one 15... Id think you could get close with 4 of them.
However, Id think you would need like 28 cubes of airspace to really get it rolling.
there are a lot of mixed opinions here i dont know which to believe