i bought one of this sub to go with my grand 8,talking about a match make in heaven,their xcrossover that build in the sub work wonderful with the omega speaker.i'm really happy with this sub,http://www.creativesound.ca/details.php?model=CLARUSX!0 ,it hard to beat for their price,they're fast and tight plus it coming with piano black.if u like music,this a perfect sub.thanks louis