You guys are a JL dealer now? If so JL is really packing them close in here in Pinellas!
I can't disagree that I personally think some of their stuff is slightly overpriced. Not a lot, but equal equipment can be had for less money in my opinion. At the same time, a W7 was never designed as a pure SPL sub so it's quite likely 2 subs at half the price will meter way better or make more bass. But a w7 does have great SQ and stays linear all the way through the power range. Not many subs get as loud as a W7 while doing it as clean. Comparing it to a Crossfire sub is apples and oranges. In fact it's father apart than that, it's comparing apples to cucumbers.
By the way, the Crossfire XS 12 is rated at 2K RMS, not 4K.
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