Ok, if you want JL's and you have not bought them yet get 3 W3' in dual 4 ohm series parallel them (2.33ohms) Of get 2 dual 2 and seies parallel them (2 ohm) When visiting the JL dealer have them look up in ther JL handbook (large book REAL JL dealers have) and ask them the hooking up one coil question. If they have a clue they will chuckle and say that is a no-no. Will it work YES, should you do it NO.
Why would any one company make a single coil woofer if on a dual coil woofer it is ok to use only one coil?????
As for the efficiency of the JL, they release true specs, many "manufactures" LIE to get you to buy their products ( I work for one, suckers are born everyday from the BS I write; I could really blown some of your minds away) I doubt the 91db is for real if it has a xmax around 14mm. I have the test equipment, you got one send it over I will be happy to post my results. (Woofer would be retuned, as I have no need for it......lol)
As for sound quaility JL is a good choice. But using any class D may have thrown that right out the window. The D does not stand for Digital (where are the fiber Optic cables at.....lol) That is another BS line a marketing firm came up with that everyone swallowed, hope those guys got paid well cause it was a good one.
I have a woofer you may be interested in it is a dual 2 ohm 12' woofer made in the same factory as Eclipse and Kove (dnewma04 knows who I am talkign about) I will have full pics and specs this weekend and will elaborate more then.
I had more to say but when i hit submit the thing froze and all is lost in cyber space.....oh well