Ok guys, I am getting the credit card out this week and have about 5 cu ft of space in my trunk to mess with. I have decided on 2 Fi Bl12's or the Q series. I will be powering them with the sundown Saz-3000D amp. I am a musician and this will be what I listen to music on, mostly rock, but I love bass, so I do throw in the occasional rap disc. It needs to be quite loud, as it is a convertible. It has to be musical and I notice the description of the Bl series doesn't sound very musical. 5 cu ft, 3000 watts, trunk of a convertible, let me hear it! Remember , this will be on for hours at a time!!