JL Audio SB-D-5GRAMCCF-12TW3 Stealthbox Two 10" 400W RMS (800W Peak Power Handling) 2 Ohms, Enclosed Subwoofer for 2019-Up RAM 1500 Crew Cab models with Fixed Rear Seat
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Why Choose JL Audio SB-D-5GRAMCCF-12TW3 Stealthbox System?
Bringing New Levels of Interior Refinement
This generation of RAM’s big hauler combines a bold new design with major advancements in aerodynamics, technology and towing capabilities. Unfortunately, the factory sound systems are greatly deficient in the bass reproduction department.
Absolutely Stellar Sub-bass Impact and Quality
Fortunately, our engineers tackled this challenge head on and developed a subwoofer solution that fills your Crew Cab with stunning amounts of deep bass output. Featuring a 100% fiberglass, sealed enclosure design, this Stealthbox® houses two of our revolutionary 12TW3 thin-line subwoofers and installs neatly under the rear seat, without compromising rear seat comfort. Rear seat folding is unaffected, and we even left space on the enclosure that’s perfect for a clean, hidden amplifier installation!
Frequently Asked Questions (FAQ)
- • Will this dual 12-inch Stealthbox fit my Ram truck if it has reclining rear seats?
No. The "CCF" indicates it is molded strictly for 1500 Crew Cab models with a fixed (non-reclining) rear seat. For trucks with reclining rear seats, you must use the 10-inch "CCR" version.
- • What extra Mopar parts do I need to buy if my truck has a factory under-seat storage tray?
You must completely remove the storage tray and purchase specific replacement factory seat bracket trim panels (Mopar parts 6ME47TX7AC and 6ME48TX7AC) so the floor area is flat.
- • Can I drop this exact under-seat enclosure into a Ram 2500 or 3500 Heavy Duty truck?
No. Despite sharing similar cab designs, the floor pans and under-seat clearance structures are completely different. This enclosure is strictly engineered for Ram 1500 Crew Cabs only.
- • What final wiring configuration load does this box present to an aftermarket amplifier?
The dual 12TW3-D8 subwoofers are internally pre-wired together in parallel. The box outputs to a single terminal block presenting a final 2-ohm mono load.
- • Why does the bass output sound hollow, heavily restricted, or weak after connection?
Modern factory Ram audio systems deploy aggressive bass roll-off at higher volumes. You must utilize an active integration module (like a PAC AmpPro) to bypass the factory equalization and feed your amp a clean signal.
- • How much continuous RMS amplifier power does this dual subwoofer setup require?
The enclosure features a combined continuous power handling rating of 800 watts RMS. A high-quality monoblock amplifier pushing 600 to 800 watts RMS at 2 ohms provides the perfect match.
- • Will installing this large enclosure block the fold-flat floor or rear legroom functionality?
No. The fiberglass shell is custom-molded to tuck completely underneath the rear seat cushions. Legroom remains untouched and the rear seats fold up and down exactly like stock.
Learn how to wire subwoofers

- Diameter : 10 Inch
- Impedance : 2 Ohm
- Peak Power Handling : 800 Watts
- Number Of Subwoofers : 2
- RMS Power Handling : 400 Watts
Features:
- Two JL Audio 12TW3-D8-2 Subwoofer
- Power Handling:
- RMS: 400 watts
- Recommended power range: 200 - 400 watts RMS
- Wired to a 8 ohm load
- Injection molded, mica-filled polypropylene cone
- Rubber surround
- No pole vent: permits mounting close to rear wall of enclosure.
- Vented reinforcement collar improves rigidity and stability of the cone, spider, and voice coil
- DMA-optimized motor designs
- Patented “concentric tube” architecture
- Patented “floating cone attach method” technology
- Xmax: 15.2 mm
- Sensitivity: 82.23 dB
- UPC: 699440946698
- Weight: 40
- 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.