JL Audio SB-POL-RZG2R/10TW3 Stealthbox One 10" 400W RMS (800W Peak Power Handling) 4 Ohms, Dual Voice Coil Shallow-Mount Car Subwoofer in Sealed Enclosure for 2014-Up Polaris RZR 4 900, 900XC, XP 1000 & XP4 1000
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What's Inside?
- • 10" Stealthbox Dual Voice Coil Shallow-Mount Car Subwoofer
- • (1) Loaded subwoofer enclosure (10TW3 driver)
- • (1) Top bracket
- • (1) Bottom bracket
- • (2) Heat shields
- • Mesh grille
- • Grille trim
- • (7) Flange-bolts
- • (9) Pan-head screws
- • (6) Button-head cap screws
- • (6) Nylock nuts
- • (6) Flat-washers
- • (1) Cushion clamp
- • Owner's Manual
Why Choose JL Audio SB-POL-RZG2R/10TW3 Stealthbox System?
Constructed from 100% Fiberglass
Specifically designed for Polaris RZR vehicles, this Stealthbox® mounts centrally, behind the rear firewall, to deliver powerful, great-sounding bass output. Constructed from 100% fiberglass with a weatherproof, texture-coated finish, plus a thermal shield to protect the enclosure from the engine's heat. This Stealthbox® houses a 10-inch, TW3 driver and includes all the mounting hardware needed for a secure, great sounding installation. Can be used on its own, or combined with our front-mounted Stealthbox®, for even more bass intensity.
Heavy-Hitting Trail Power
This custom-fit, forward-firing 10-inch subwoofer system completely redefines powersports audio by mounting centrally right behind the rear firewall, tucking neatly out of sight while maintaining your clean factory interior look.Inside, the premium thin-line driver utilizes a patented concentric tube structure to blast out 400 watts RMS of deep, rich, and articulate bass from an incredibly compact space. Wired for an optimized 2-Ohm load to squeeze maximum efficiency out of your amplifier, it can be run completely standalone or paired with a front-mounted setup for absolute audio dominance.
Frequently Asked Questions (FAQ)
- • Which Polaris RZR models is this Stealthbox compatible with?
This enclosure is custom-engineered for 2014-up Polaris RZR XP 1000, XP 4 1000, 900 XC, and RZR 4 900 models. Note that it is not compatible with Turbo models.
- • Where is the enclosure installed, and does it require modifications?
The unit mounts centrally behind the rear firewall. Installation requires the permanent removal of the factory center storage compartment.
- • Is the enclosure waterproof or weatherproof?
The Stealthbox features a weather-resistant, texture-coated finish and a thermal shield to protect against engine heat, but it is not fully waterproof.
- • What are the power handling and impedance specifications?
It houses a 10TW3-D4 driver rated for 400 watts (RMS). The system is wired internally to present a final 2-ohm mono impedance load to your amplifier.
- • Why is it vital to mount the enclosure securely?
Proper mounting prevents two major issues: movement that degrades sub-bass performance and a significant safety hazard during sudden deceleration or collisions.
- • How can I reduce vibrations and rattles from surrounding panels?
For optimum performance, apply the included foam strips or sound-damping material to the surrounding plastic panels to isolate the enclosure and eliminate unwanted noise.
- • Can I power this subwoofer directly from my factory stereo?
No. Factory head units lack the power to drive a subwoofer. You must use a dedicated external monoblock amplifier to provide the necessary signal and power.
- • What should I check if the bass sounds underwhelming or distorted?
Ensure all mounting bolts are fully tightened. If performance is still poor, verify your amplifier crossover settings (recommended 80Hz low-pass) and check for phase cancellation.
Learn how to wire subwoofers

- Diameter : 10 Inch
- Impedance : 4 Ohm
- Peak Power Handling : 800 Watts
- Number Of Subwoofers : 1
- Vehicle Make : Polaris
- RMS Power Handling : 400 Watts
Features:
- Vehicle Compatibility: Specifically engineered for 2014-up Polaris RZR 4 900, 900XC, XP 1000, and XP4 1000 models (excludes Turbo models), mounting centrally behind the rear firewall for minimal space usage.
- Powerful Bass Output: Houses a 10TW3-D4 subwoofer delivering deep, rich, and articulate bass with 400 watts RMS power handling.
- Custom Fiberglass Enclosure: Constructed from 100% fiberglass with a weatherproof, texture-coated finish, built to withstand rugged off-road conditions.
- Thermal Protection: Includes integrated thermal shields to protect the enclosure and subwoofer from engine heat for long-lasting performance.
- Forward-Firing 10TW3 Driver: Features JL Audio’s patented thin-line woofer technology with a concentric tube structure for compact mounting without compromising output.
- 2-Ohm Wiring: Subwoofer is wired for a 2Ω load to optimize power handling and compatibility with a wide range of amplifiers.
- Easy Integration: Can be used standalone or combined with a front-mounted Stealthbox for even more bass intensity.
- Secure Installation: Comes with all necessary mounting hardware and a protective metal grille, ensuring a clean, safe installation behind the rear firewall.
- Space-Saving Design: Requires removal of the center storage compartment but keeps the subwoofer hidden, maintaining the factory look of your RZR interior.
Specifications:
- Enclosure Type: Stealthbox custom-fit fiberglass
- RMS Power Handling: 400 watts
- Wired Impedance: 2 Ohms
- Installation Location: Behind rear firewall (center storage compartment must be removed)
- Driver Configuration: Forward-firing, dual 4? voice-coil subwoofer
- Protective Features: Thermal shield and metal grille included
- Construction: Weatherproof, texture-coated fiberglass enclosure
- UPC: 699440946315
- Weight: 15
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.