I am thinking about buying 2 JL 10w6v2 subs for my coupe. What other things will I need to buy have a good sound system. And are the boxes that are sold on ebay such as this one good? http://cgi.ebay.com/ebaymotors/Infin...spagenameZWDVW

 

I'd get a 500/1 or 1000/1 to push the subs (depending on how much you want to get out of them) you'll need some speakers and a 4 channel amp so the bass doesnt drown out treble. The box that you showed (Zenclosures) is an awesome box. very well made and inexpensive for a custom fit enclosure. Many people have used these boxes and they couldnt be happier. I might be picking one up within the next 2 months or so.
-GP-

 

I wanted to go with that EXACT same setup. ZEnclosure box and 2 10w6v2. My only concern is that the total airspace of that box is .80cuft and JL recommends .6cu for a sealed box for each sub. I don't know how that will affect the sound, but it may not let the sub play efficiently in the lower frequencies.

 

For the amount of $$$ you will be paying to get two 10W6v2s, you can get one 10W7v3 and still have some $$$ left over for the box. Higher x-max, higher power handling, bigger bass, less space, and you'll need a 1.25ft^3 enclosure. JL 500/1 mates perfectly with the W7.

Just my $0.02.

Good Luck!