Well the 3000SPL supposedly has great SQ, but not enough people actually have the sub to get alot opinions like the RL-P (which is really popular on here). I just know the majority of people on here care less about output and more about SQ. I definitely do want my bass to sound good, so I don't mind spending a little money on it, but I am looking for alot of output. I was going for an L7 but I wouldn't really have enough room for it to shine.