Hey fellas. Just wanted to post what I added recently to my HT. An 18" FI Q sub powered by a 1000w Dayton plate amp in a 9.5cu box tuned to 28hz. This replaced a 15" SI Mag and I have to say I'm happy. I was happy with the Mag setup I had but wanted something a little deeper. I love the Q. Especially when you consider the cost difference! Ok. How does the Mag compare to a Q? First off let me say I loved the Mag. A very tight hitting 15 that is capable of much more than I ever demanded out of it. (My house wouldn't forgive me) The Q obviously hits lower and I would say ALMOST just as hard as the Mag. The difference is negligible. Probably completely unoticable to most. Sq? This one is tough. My results are based on a home application so room accoustics plays a big part here. If you were sitting right in front of either sub in a car you should be quite impressed. I had to locate the Q setup to a completely different side of my gameroom. In car audio most say install is everything. Well in HT, sub placement is just as important. How either sub would sound in both spots could be an infinite debate. Looks? The Mag wins this one. I'm happy with either but the Mag's azz won me over. Yeah I'm a pushover. Price? Hands down the Q runs away with this one. An 18" vs a 15" for $200 less? No brainer after comparing the two. Bottom line? Taking the fact that both hit hard with the edge given to the Mag, with VERY similar sq, and the cost factor, I would give the ribbon to the Q. You just get more for your $$. The Mag holds its' own and then some without complaints. It's also a d@mn fine looking sub with a well earned rep. The $500 price tag however will keep it out of many ppl's hands. Sad really.
