hmm never had an fi q i always have wanted one though i would like to run 2 but thats just a little too much for me to spend, im not the kind of person to dedicate everything to just my car system. but ill tell you i have had the tc sounds tc9 and it was a wonderful sub but i dont know if it was the cleanest sounding sub, it did sound good but i just havent heard anything that can compare to jl w3v3s, i just love those subs. but 160 shipped is a good price, i would say, i got mine for like 130 like a year ago and i feel that i stole the sub for that price. ive also had a tc sounds tc3000 and thats an amazing sub too, much better than the tc9 but of course wayy more money. but honestly man you cant go wrong with that sub in a good box but thats a bad vid all you really see is its xmax and it sounds like the coils are going too
I run an 18" Q in my HT and it replaced my 15" Mag. BOTH quality drivers. The Q has always impressed me and will be one for suggestion on SQ for a long time. While I dearly miss my Maggie the Q has held its' own and then some. I had a TC9 briefly but never did a one on one comparison. We raffled it off to benefit something Mike Louden was sponsoring for a school IIRC. Bottom line it's a good driver.
Both are awesome drivers. You really cant go wrong with either one.
Maybe someone will agree with me on this... but the Q has a different sound to it than a lot of other woofers. I cant really put my finger on what the difference is but I feel like I can always pick it out of the group. I also have the same "sense" with the AA Havoc.