Included in this kit

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This bundle includes a JL Audio SB-GM-5GSUV/10TW3 - Stealthbox for 2021-Up Chevrolet / GMC Full-Size SUV’s, a JL Audio RD900/5 900W Class D 5-Channel Full-Range Amplifier, and a JL Audio HD-RLC:Amplifier Remote Level Control and Cable.

1x JL Audio SB-GM-5GSUV/10TW3 - Stealthbox for 2021-Up Chevrolet / GMC Full-Size SUV’s - (SB-GM-5GSUV/10TW3)

GM's fifth-generation full-size SUV gets all-new, luxurious interiors, along with major enhancements in performance and technology. Unfortunately, the factory audio systems still lack quality bass reproduction. There also isn’t much room for a conventional subwoofer design, without compromising people and cargo space.

To overcome this challenge, our engineers developed a subwoofer solution that installs invisibly, behind the driver's side cargo panel, with no loss of storage space. Featuring 100% fiberglass construction, this Stealthbox® is equipped with one of our innovative, 10-inch TW3 thin-line subwoofers in a custom-formed, sealed enclosure.

The Hard Data: Contains one 10TW3-D4 in a sealed enclosure. 400 watt power handling. Wired for 2 ohm mono. Stealthbox® installs behind the passenger side cargo trim panel. Replaces the OEM “subwoofer” system, if equipped.

Built in U.S.A. with Global Components
JL Audio's Miramar, Florida loudspeaker production facility is one of the most advanced in the world.

Detailed Information:
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.

1x JL Audio RD900/5 900W Class D 5-Channel Full-Range Amplifier - (RD900/5)

JL Audio RD900/5 900W Class D 5-Channel Full-Range Amplifier

Rated Power @ 14.4V, <1% THD+N: 75W x 4 + 250W x 1 @ 4Ω, 100W x 4 + 500W x 1 @ 2Ω

1x JL Audio HD-RLC:Amplifier Remote Level Control and Cable - (HD-RLC)

JL Audio HD-RLC: Amplifier Remote Level Control and Cable

Remote Level Control for Select JL Audio Amplifiers

The HD-RLC remotely controls the Bass Level of the following JL Audio amplifiers:

HD-Series: All models

XD-Series: All models

MHD-Series: All models

M-Series: All models

When the HD-RLC is connected to the above amplifiers, it acts as an attenuator on the input gain of the amplifier and is used to adjust the overall level of the amplifier from the front of the vehicle.

The HD-RLC kit includes the rotary control with a black ABS knob, mounting hardware and one 18 ft. (5.5 m) cable.

A satin-finish aluminum knob can be purchased separately.