^^^^I don't dought ya. Those 9500's are extremley powerful subs. Why don't you just buy another one then!? I'm sure that would be comparable to the 4 l7's or 4 r's!? But on the L7's mine are in tune with every single beat. It all depends on the box build and the Freq you set it to on your amp as well. But those L7's I think would be louder.