1. Product Overview
The DS18 JSD8/BK Hydro is a marine-grade double speaker soundbar designed for outdoor vehicles such as jet skis, ATVs, UTVs, and side-by-sides. It features two 8-inch NXL-8 speakers with integrated RGB LED lighting, providing powerful audio and customizable aesthetics. The unit is IP65 compliant, offering protection against dust and water spray, making it suitable for harsh marine environments. It includes versatile flat mounts for easy installation.

2. Important Safety Information
- Always disconnect the vehicle's battery before beginning any installation.
- Ensure all wiring is properly insulated and secured to prevent shorts and damage.
- Mount the soundbar securely to prevent movement during vehicle operation.
- Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods when not in use.
- Consult a professional installer if you are unsure about any part of the installation process.
3. Package Contents
Verify that all items are present in the package:
- One DS18 JSD8/BK Hydro Double Speaker Soundbar (containing two NXL-8 waterproof speakers)
- Versatile flat mounts
- Integrated RGB lights (pre-installed)
4. Technical Specifications
| Feature | Specification |
|---|---|
| Nominal Diameter | Dual 8" (NXL-8) |
| Nominal Impedance | 4 ohms (Each Speaker) |
| RMS Power Handling | 250W (Total), 125W (Each Speaker) |
| MAX Power Handling | 750W (Total), 375W (Each Speaker) |
| Sensitivity (1w/1m) | 96dB (Combined) |
| Frequency Response | 35Hz - 23KHz |
| Recommended Hi Pass Crossover | 60 Hz |
| Marine Grade Compliance | IP65 |
| Speaker Cone Material | Waterproof Injection Polypropylene |
| Surround Material | Butyl |
| Enclosure Type | Sealed |
| Enclosure Material | High Density Plastic Molded (LLDPE) |
| Overall Height | 9.46" / 240.4mm |
| Overall Width | 26.34" / 669mm |
| Overall Depth | 14.14" / 359.2mm |
| Item Weight | 20.2 pounds |
| Mounting Type | Bar Mount, Boat Mount |
| Special Feature | Waterproof, Integrated RGB LED Lighting |
| Compatible Devices | Smartphone, Tablet, MP3 Player (via amplifier) |


5. Installation Guide
5.1 Mounting
The DS18 JSD8/BK soundbar is designed for versatile flat mounting, commonly on the rear platform of jet skis or other powersports vehicles. Ensure the mounting surface is sturdy enough to support the unit's weight and vibrations during operation.
- Identify a suitable, flat mounting location on your vehicle.
- Position the soundbar and mark the drilling points for the flat mounts.
- Drill pilot holes, taking care not to damage any underlying components or wiring.
- Secure the soundbar using appropriate marine-grade hardware (not included).


5.2 Wiring Connections
The soundbar requires an external amplifier for operation. Proper wiring is crucial for optimal performance and safety.
- Power Wiring: Connect the soundbar's power wires to a suitable 12V power source through an appropriate fuse and relay, ensuring the amplifier is also correctly powered.
- Audio Signal: Connect the audio input from your source unit (e.g., head unit, media player) to your amplifier, and then connect the amplifier's speaker outputs to the soundbar's speaker inputs.
- RGB LED Wiring: The integrated RGB LEDs require a separate connection to an RGB controller (not included) for color customization. Follow the RGB controller's instructions for wiring.
6. Operation
6.1 Audio Playback
Once the soundbar is correctly installed and connected to an amplifier and audio source:
- Turn on your vehicle's ignition and the audio source unit.
- Ensure the amplifier is powered on and receiving a signal.
- Adjust the volume on your audio source and amplifier to a desired listening level.
6.2 RGB LED Control
The integrated RGB LEDs allow for customizable lighting effects. To control the colors and patterns:
- Connect the RGB wiring to a compatible DS18 RGB LED controller (sold separately).
- Refer to the RGB controller's instruction manual for specific operation details, including color selection, brightness adjustment, and mode changes.

7. Maintenance
Regular maintenance ensures the longevity and performance of your DS18 JSD8/BK Hydro soundbar.
- Cleaning: Use a soft, damp cloth to wipe down the soundbar's exterior. Avoid harsh chemicals or abrasive cleaners that could damage the finish or waterproof seals.
- Inspection: Periodically check all mounting hardware for tightness. Inspect wiring for any signs of wear, corrosion, or damage.
- Storage: If storing the vehicle for an extended period, ensure the soundbar is clean and dry. Consider covering it to protect against dust and environmental elements.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from soundbar | No power to amplifier; Amplifier not receiving audio signal; Loose speaker wires. | Check power connections to amplifier and soundbar; Verify audio source is on and connected; Inspect speaker wire connections at both amplifier and soundbar. |
| Distorted sound | Gain settings on amplifier too high; Damaged speaker; Improper wiring. | Adjust amplifier gain settings; Inspect speakers for physical damage; Re-check all wiring connections. |
| RGB LEDs not working | RGB controller not connected or faulty; Loose RGB wiring. | Ensure RGB controller is properly connected and functioning; Check RGB wiring for secure connections. |
| Soundbar not securely mounted | Loose mounting hardware; Incorrect installation. | Tighten all mounting bolts and screws; Re-evaluate mounting location and method if necessary. |
9. Warranty and Support
DS18 products are designed and manufactured to the highest quality standards. For specific warranty information, including duration and coverage, please refer to the warranty card included with your product or visit the official DS18 website. For technical support or service inquiries, please contact DS18 customer service directly.
You can find more information and support resources on the DS18 Brand Store.



