Because you seem to make statements with no knowledge to back them up. If you are sure of yourself then you will have no problem providing the technical statements to back-up your comments.
Mabey you and Telegon need to hang out with all you comments and nothing to back them up.
To show you how this works-The IDMAX had tighter, quicker bass response while the W7 had a bit more output.IMO
Punkorama-I can name several drivers I would put up an W7 any day of the week. It is not the end all be all. Just to name a couple for you, some you probably never heard off:SI MAG v2, IDMAX, JBL W12GTi, Dayton HO, SS RL-p, TC, Boston SPG. Yes I have had most of these I listed. Don't forget the install is going to play a big part in this also.
JL makes a very good driver. TC makes a very good driver. Everyone has their own personnal taste. I have used both I think they each have things they are better at. They both have good SQ is it the best out there mabey, personnal taste. There are alot of driver out there that are very good at both things your are after.
TC-JL-ID-JBL-FI-SI MAGs-SS
Now ask yourself what makes a great SQ sub, which is highly debatable?Faraday Rings, Low end ability, Tight response, how well it has the ability to integerate with front stage, Freq. response.
Either of the subs you are looking at IMO are near the top of the Market. Installed properly they both are an excellent choice. It's your ears and how you like your sub to play.