JL Audio SB-F-MUCUPE/13W3v3 Stealthbox for 2005-2009 Ford Mustang Coupe – 94256


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JL Audio SB-F-MUCUPE/13W3v3 Stealthbox for 2005-2009 Ford Mustang Coupe – 94256

  • 150 – 600 watts RMS Recommended power range
  • Wired to a 2 ohm load
  • Mineral-filled polypropylene cone woofer
  • Nitrile-butadiene rubber surround

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SKU: 94256 Item #: 94256 Category:

Frequently Bought Together

JL Audio SB-F-MUCUPE/13W3v3+Alpine iLX-207
Price for both:   $2,148.95

Product Description

JL Audio SB-F-MUCUPE/13W3v3 Stealthbox for 2005-2009 Ford Mustang Coupe – 94256

JL Audio SB-F-MUCUPE/13W3v3 Stealthboxes are hand-crafted from fiberglass and/or Advanced Molded Composite (AMC) materials. Fiberglass delivers a level of enclosure rigidity and dimensional stability not possible with other enclosure materials, allowing wall thickness to be reduced compared to a typical wood enclosure. This gives you more interior box volume for a given external volume.

Fiberglass and AMC materials are very strong and can be molded into very complex shapes; giving JL Audio the ability to design your Stealthbox to fit perfectly into tight spots and minimize intrusion into your vehicle’s useful space. Each Stealthbox is laminated, ground, joined, and finished by hand in the USA. Proprietary techniques and materials developed by JL Audio through years of fiberglass manufacturing experience ensure consistent quality and performance.

The Hard Data: Contains one 13W3v3-2 in a sealed enclosure. 600 watt power handling. Wired for 2 ohm mono. Installs in the passenger side rear corner of the trunk.


JL Audio’s Miramar, Florida loudspeaker production facility is one of the most advanced in the world.

At a time when most audio products are built overseas, JL Audio’s commitment to in-house loudspeaker production continues to grow. To pull this off in a competitive world market, our production engineering team has created one of the world’s most advanced loudspeaker assembly facilities and established a global network of quality component suppliers who build to our specifications. This, combined with our commitment to state-of-the-art assembly technology, allows our skilled workforce to efficiently build JL Audio products to extremely high quality standards, right here in the U.S.A.

Since most of our premium loudspeakers incorporate proprietary, patented technologies requiring specific assembly techniques, we find it is vital that the people who designed them have close access to the people manufacturing them. The following JL Audio products are built in our Miramar, Florida factory, with global components.

Additional Information

Weight 20.4 kg

– Subwoofer Design: Round / Circle
– Voice Coil(s): Single
– Impedance (Per Voice Coil): 2 ohms
– RMS Power Handling: 600 watts
– Woofer Surround: Rubber
– Woofer Composition: Mineral-Filled Polypropylene
– Sensitivity: 87.63 dB
– Frequency Response: 20 – 200 Hz
– Xmax (millimeters): 15.5 mm
– Subwoofer Size: 13.5″

Car Subwoofer Size


RMS Power

401 to 800 Watts

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JL Audio Canada 2 Years Limited Warranty


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