They are not an "authorized dealer". Just like you can get Alpine and Eclipse from unauthorized dealers on the net so you can with JL. The difference is that you don't get any warranty support from the manufacturer. If you don't care about the warranty, then JL can be had pretty reasonably from several
eBay sellers. I have a pretty good relationship with my local dealer. Result: I don't pay full retail.
It seems that most of the people that bad mouth JL do so because they are expecting every woofer to do one thing: get really loud. Well by and large, that's just not JL's bag. They started out when IASCA was in its prime and SQ was all that mattered. They have stayed their course building woofers whose purpose is to provide a solid low end that accurately reproduces the signal fed to it. They are great true "daily driver" subs because they do their job with very little power and they don't require the entire trunk for an enclosure. I am still considering using 3 of my old 10w6s in my new car. Less that 2cf for an optimal sealed enclosure for 3 10s and I won't need more than the 400 watts I will be feeding the trio for them to sound excellent and get more than loud enough to get a noise citation. To this day I'm still surprised that I never got a ticket when I had 6 of them in my truck. Of course I usually had the sub volume and crossover freq at near minimum. This was with only 800 watts for all 6. What did it meter at? Don't know, don't care. SPL ain't my thing. I listen to music and I'm really picky about it. I like my JL subs. After hearing them for the first time I have never bought anything else and I have never been disappointed. They do what I want and what I expect. Getting loud does not fall into my wants or expectations.
Some one on this thread said that they blow too easily. BS. If you are blowing them then you are doing someting wrong. If you are expecting them to be the loudest thing on the block and are blowing them trying to proove it then that is your problem. You are asking them to do something that they were not designed or capable of doing. Jacking your gains up and playing "volume master", you won't be happay with any woofer cause you'll blow them all abuseing them like that. Feed JL subs an unclipped signal and they will withstand well over their rated power for short periods of time. Feed them a clipped signal, and you can blow most any sub with way less than their rated power.