JL has a special box for the W7 which is supposed to give you all the power you can feel from the W7. best off spending your money on a larger JL amp too ... they work best w/ JL subs and the amps are thermal so you can have them on all the time and not worry about them overheating.
I've heard them a few times, and every time I hear them I get a chubby. Not quite sure if they're worth it. I spent $400 a piece on my L7's when they first came out, and comparably speaking if Kicker L7's are worth $400 then the JL W7 is worth much more than $600, but I don't feel my kickers were worth $400, so it's hard to say.
well, I have 2 12w7's, and I'm a dealer/ installer, so I can answer some questions.
1. The w7 is not an SPL woofer. It was designed for SQ.
2. 1 12w7 has been metered at 140db on a JL 500/1. Of couse the box plays a major role in the output.
3. If you are just looking for loud, look at an IDMax 12" for $400.
if you listen to a w7 in a car built for sound quality, it is amazing in how precise and accurate it sounds. They can get very loud, but stay crystal clear.
The IDMAX is the closest thing to a w7 on the market presently. It plays very clean, but not to the same degree as the w7. The maxes are extremely loud in big enclosures and can hit the DB's. I have a customer with a 98 civic HB with 1 12" IDMAX in a 5 cubic ft box with 1000 watts on it hitting low 150's right now.
Another good SPL speaker is the Planet Audio Big Bang 15". You can get them for $200 for the 15" @ www.nexxon.com. For that 600 bucks I would get that big bang and a Planet Audio big bang amp from them which is like $400 if I remember right. The retail on that sub is like 700 and is one of the best spl speakers on the market and for 2 bills you can't go wrong. My friend has a 15" Big Bang in a 4.5 box running off a Planet Audio Vector D (3 caps 2 batteries) and is hitting mid 140's. Hope I helped out the conversation a little. Another good sub is the Audiobahn Alum12x etc for sale for like 130 @ www.thezeb.com
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