Michael Mitten

I know this is a car audio forum so please excuse the HT question. I tried to get an answer out on the main forum but I wasn't getting any responses. I've heard great things about Fi and want to get a pair of 18s for my HT setup. I was told over on the Cult that some tweaks can be made to make the drivers IB friendly. So, the question I have is, what diffence could I expect between the SSD series and the Q series? I expect it to be loud, but I'm looking to hit the bottom octave with some authority. Opinions?

Is it your opinion that 4 MJs will out perform 2 Fi SSDs or 2 Fi Qs? I'm wide open to what I could use. I just saw over at the Cult and was told that these are good drivers and Scott does whatever tweek he needs to in order to make them good for IB use. I would like to stick to just two drivers if possible. If it helps any, I have approx 1,700 cu ft for my HT. I'm looking to hit the bottom octaves with some decent authority without overdriving the drivers. I'll be using a Behringer amp capable of 1,400 watts rms. Not that I'll be using all 1,400, but what I don't use will be great for headroom and not stress the amp or the speakers with distortion.

I'm looking to do an IB setup in my basement with a pair of 18s. Which drivers would be better, the Q series or the SSD and why?