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If you have the space, it makes a tremendous sense to maximize your subwoofer system's piston area to enhance efficiency (and output). It gets even better when the larger driver delivers additional power handling and excursion. For the preceding reasons, the 13W3v3 can be the best choice for those seeking high output with great sound quality at medium power levels.
As with the smaller W3v3's, several exclusive JL Audio technologies and proprietary assembly techniques are applied to the 13W3v3 to enhance linearity and reliability. The 13W3v3-4 is best used with amplifier power in the 150W - 600W range and is optimized to operate in a moderate size 1.5 cu. ft. (42.5 l) sealed enclosure, or a 2.25 cu. ft. (63.7 l) ported enclosure.
The 13W3v3-4 subwoofer boasts a 13.5" mineral-filled polypropylene cone with a distinctive metallic JL Audio medallion. A patented design eases the stress felt by the rubber surround during cone movement, for increased reliability and consistent bass output.
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I have 2 of these in my focus ran off a kicker 08zx750.1 and it slams. Sub has a real good SQ doesnt hit really high notes but definatly worth the money. Im upgrading zx1000.1 simply because it can handle the power. Buy these.
Tested it out in my ported box, and the sound is truly exceptional. It's a bit pricey, but definitely worth the investment.
Fantastic bass and the clarity is on next level. Pricey but they are well worth the cost.