I heard 2 10's at a local shop with a 500/1 on them. It sound really nice they were in an jl ported enclosure, and again sounded awesome. It was pretty loud even though it was in the sound room. Great low power budget sub if you ask me.
from what ive heard theyre a littl emore spl oriented than sq... im sure they still sound great but i think theyre more of a budget sub liek everyone has said.