Description

DS18 RZR-RCSUB10LD
The JT-S84LD is a loaded under-seat subwoofer enclosure engineered specifically for the Jeep Gladiator JT (2020-Up). This high-performance bass system comes preloaded with four 8-inch DS18 ZR8.2D subwoofers, delivering powerful low-frequency output while maintaining a clean factory-style installation beneath the rear seat. The sealed enclosure is constructed from ¾-inch MDF and finished with black leather and acrylic, ensuring durability and premium appearance. With 1800W RMS (3600W MAX) power handling at a 1-ohm load, the JT-S84LD produces deep, tight bass while taking minimal cabin space. It also features integrated digital RGB LED lighting for a customizable visual effect (controller sold separately).
General Specifications
| Specification | Details |
|---|---|
| SKU | JT-S84LD |
| Speaker Type / Size | Quad 8″ / 203 mm |
| Total Impedance | 1 Ohm |
| Total RMS Power Handling | 1800 W |
| Total MAX Power Handling | 3600 W |
| Sensitivity (1W/1m) | 91 dB |
| Frequency Response | 35 – 100 Hz |
| Recommended Low Pass Crossover | 80 Hz |
| Wiring / Connections | LED Digital (Dream) / Subwoofer Connector |
| OEM Fit | Yes |
| Compatible Models | Jeep Gladiator |
| Model Years | 2020-Up |
| LED RGB | Yes, Digital (Dream) 12V |
| Finish / Color | Leather / Acrylic / Black |
Speaker Specifications
| Specification | Details |
|---|---|
| Model | ZR8.2D |
| Voice Coil Diameter | 2″ / 50.8 mm |
| Voice Coil Former Material | Aluminum |
| Winding Material | Copper |
| Cone Material | Non-Pressed Paper |
| Dust Cap Material | PPI |
| Surround Material | Foam |
| Basket Material | Steel |
| Magnet Material | Ferrite |
| Magnet Weight | 55 oz |
Box Specifications
| Specification | Details |
|---|---|
| Internal Volume | 25 L / 0.88 ft³ |
| Load Configuration | Parallel |
| Box Type | Sealed |
| Box Material | 3/4″ MDF |
| -3 dB Dropping Point | 50 Hz |
Measurements
| Specification | Details |
|---|---|
| Overall Height (Front) | 7.2″ / 183 mm |
| Overall Height (Rear) | 5.8″ / 148 mm |
| Overall Width | 44.3″ / 1125 mm |
| Overall Depth | 11.2″ / 285 mm |
Product Overview
Loaded Under-Seat Subwoofer Enclosure for Jeep Gladiator (2020–Up)
DS18’s JT-S84LD is the ultimate bass upgrade for Jeep Gladiator owners who like it loud and clean. Loaded with four 8” ZR8.2D subwoofers, wrapped in black leather, and lit up with digital LED lighting, this setup turns your Jeep’s back seat into a bass chamber.
All the Boom, None of the Bulk
Designed to fit under the rear seat of 2020+ Jeep Gladiator models with zero seat lift required, this sealed enclosure pumps out a whopping 1800W RMS (3600W MAX) at a 1-ohm final load.
Show-Mode Ready with Digital LED
Equipped with Digital LED Lighting, the JT-S84LD also offers a visual show. Pair it with DS18’s LC-DRM Bluetooth Lighting Module (sold separately) to control colors, effects, and patterns straight from your phone via the DS18 LC App.
Built to Bang, Built to Last
Crafted from ¾” MDF, finished in black leather and acrylic, and internally sealed for ultra-tight bass response, this enclosure is trail-tested and show-floor approved. Plus, each sub is housed in a side-ported 0.88 ft³ sealed chamber, tuned for a deep 35–100Hz response.










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