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400W RMS

Subs, Speakers and Electronics with an RMS Power Rating of 400-Watts

Subs, Speakers and Electronics with an RMS Power Rating of 400-Watts

The RMS rating of any speaker or subwoofer driver is the continuous power rating that the driver is designed to handle at a maximum volume rating. The RMS rating is one of two numbers to go by when pairing your speakers with an amplifier. As an example, a speaker with a 400-Watt, or 400W for short, RMS rating should be paired with a four-hundred-watt RMS amp. We usually recommend a power-plant to be over powered by 10 – 20% RMS so that the amplifier does not have to work at 100% capacity to get 100% efficiency from your speakers.

3 products

  • JL Audio SB-F-F150SPRCB/10TW3 : 10" Thin 400W Subwoofer Enclosure, cutaway view. JL Audio SB-F-F150SPRCB/10TW3 : 10" Thin 400W Subwoofer Enclosure, shown installed.

    JL Audio SB-F-F150SPRCB/10TW3 : 10" Thin 400W Subwoofer Enclosure @ 2Ω, 2015-UP F-150 (SuperCab)

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    Single 400-Watt 10-Inch Stealthbox Subwoofer Enclosure for Select 2015-UP Ford F-150 SuperCab & 2017-UP SuperDuty SuperCab Trucks Benefitting from JL's revolutionary thin-woofer technology, this Stealthbox® for F-150 SuperCab and SuperDuty SuperCab trucks is designed to install neatly under the rear seat with no intrusion on cab space. Featuring an all-fiberglass, sealed enclosure design, JL's Stealthbox® houses a 10-inch TW3 thin-line subwoofer and fills your truck with loads of deep bass output. Seat folding and reclining are unaffected, and JL even incorporated a recess on the Stealthbox’s top for mounting an amplifier, if desired. The Hard Data: Contains one 10TW3-D4 subwoofer in a sealed enclosure. 400 watt power handling. Wired for 2 ohm mono. Installs under rear bench seat and requires removal of the storage divider panel. Stealthbox® includes a steel-mesh grille to protect the driver. Does not affect folding or reclining of seat. Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-F-F150SPRCB/10TW3 Installation Manual

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    $999.99

  • JL Audio SB-F-FOC5DR/10TW3 : 10" Thin 400W Subwoofer Enclosure @ 2Ω, Ford Focus 5dr 2012-2018 JL Audio SB-F-FOC5DR/10TW3 : 10" Thin 400W Subwoofer Enclosure, shown installed.

    JL Audio SB-F-FOC5DR/10TW3 : 10" Thin 400W Subwoofer Enclosure @ 2Ω, 2012-2018 Ford Focus (5 door)

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    Single 400-Watt Thin 10-Inch Subwoofer-Enclosure for Select 2012-2018 Ford-Focus 5-Door Hatchback Vehicles Ford’s cool little hatchback is not only fun to drive, but functional as well. This is why JL worked hard to tuck their Stealthbox® into a tiny corner of the hatch, keeping your cargo space virtually intact. Inside this Stealthbox® is the 10TW3 thin-line subwoofer. This driver has a very shallow mounting depth and is specifically optimized to operate in very compact enclosures, making it capable of delivering high quality, high impact sub-bass with any kind of music. Combined with any of JL Audio's drop-in coaxial and component speakers, the Stealthbox® will make you smile every time you dial the volume up. The Hard Data: Contains one 10TW3-D4 subwoofer in a sealed enclosure. 400 watt power handling. Wired for 2 ohm mono. Installs in the passenger side rear cargo area. Installation requires permanent modification of the OEM cargo area floor. Will not fit the Focus sedan (4-door) or ST models. Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-F-FOC5DR/10TW3 Installation Manual

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    $999.99

  • JL Audio SB-F-MUSCPE/12TW3 : 12" Thin 400W Subwoofer Enclosure @ 2Ω, Ford Mustang Coupe 2015-UP JL Audio SB-F-MUSCPE/12TW3 : 12" Thin 400W Subwoofer Enclosure, shown installed.

    JL Audio SB-F-MUSCPE/12TW3 : 12" Thin 400W Subwoofer Enclosure @ 2Ω, 2015-UP Ford Mustang Coupe

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    Single 400-Watt Thin 12-Inch Subwoofer-Enclosure for Select 2015-UP Ford Mustang-Coupe Vehicles The latest all-American pony car gets a big dose of horsepower and major technology enhancements, all packaged in a new sleek and sexy body. Sadly though, the stock audio systems just can't deliver enough bass to keep up with the Mustang's high-performance muscle. JL's Stealthbox® features an all-fiberglass, sealed enclosure design that fits in the same location as the optional factory subwoofer (and requires no holes to be drilled for installation). Equipped with their revolutionary 12TW3 thin-line subwoofer, this Stealthbox delivers deep, powerful bass that's worthy of your Mustang's heritage. The Hard Data: Contains one 12TW3-D4 in a sealed enclosure. 400 watt power handling. Wired for 2 ohm mono. Installs in the passenger side rear corner of the trunk. Factory subwoofer (if equipped) must be removed for installation of Stealthbox®. Installation in Mustang Shelby GT350 models requires relocation of additional OEM equipment. Will not fit convertible models! Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-F-MUSCPE/12TW3 Installation Manual

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    $1,099.99

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