1. Introduction
Thank you for choosing Herdio 100W HIFI 2-Way Waterproof 4-inch Speakers. These speakers are designed for robust performance in various outdoor and marine environments, including yachts, boats, outdoor vehicles, agricultural vehicles, trucks, and construction vehicles. This manual provides essential information for the safe and effective installation, operation, and maintenance of your new speakers.

Image 1.1: Herdio 100W HIFI 2-Way Waterproof 4-inch Speakers.
2. Safety Information
Please read all safety instructions carefully before installing and operating the speakers. Failure to follow these instructions may result in electric shock, fire, or other injuries.
- Power Source: Ensure the power source matches the speaker's voltage requirements.
- Wiring: All wiring should be performed by a qualified professional to prevent electrical hazards.
- Mounting: Mount speakers securely to a stable surface to prevent them from falling.
- Environment: Although waterproof, avoid submerging the speakers. Do not expose to extreme temperatures or direct flame.
- Cleaning: Disconnect power before cleaning. Use a soft, dry cloth. Do not use liquid cleaners or aerosol sprays.
3. Package Contents
Verify that all items listed below are included in your package:
- • Herdio 4-inch Waterproof Speakers (2 units)
- • Mounting Brackets (2 units)
- • Mounting Screws and Nuts (4 sets)
- • Speaker Wires (2 sets)
- • User Manual (this document)

Image 3.1: All components included in the Herdio speaker package.
4. Features
The Herdio 100W HIFI 2-Way Waterproof 4-inch Speakers offer a range of features designed for durability and high-quality audio in challenging environments:
- Marine Grade Waterproof Construction (IP66): Engineered with IP66 waterproof technology, a rust-proof speaker grille, and a heavy-duty engineered ring plastic cabinet. This design ensures the speakers can withstand harsh outdoor and marine conditions, making them ideal for boats, spas, automobiles, and yachts.

Image 4.1: Waterproof design for outdoor resilience.
- Compact and Powerful Audio: Despite their compact 4-inch size, these box speakers deliver a surprisingly robust sound effect. They are capable of projecting sound effectively up to 20 meters, ensuring clear audio even in open environments.

Image 4.2: Internal components for powerful sound.
- Swivel Support Structure: Each speaker features a 180-degree rotating bracket, allowing for flexible positioning and optimal sound direction to suit your specific installation needs.
- Easy Installation: Designed for simple surface mounting, the speakers come with all necessary brackets, screws, and nuts for quick setup in limited spaces. Product dimensions are approximately 4.4 inches (112mm) (W) x 4 inches (102mm) (H) x 4 inches (102mm) (D).

Image 4.3: Adjustable bracket for versatile mounting.
5. Specifications
| Attribute | Value |
|---|---|
| Model Number | MX-261B |
| Brand | Herdio |
| Speaker Type | Outdoor / Marine |
| Wattage (Max Output) | 100 Watts |
| Subwoofer Diameter | 4 inches |
| Waterproof Rating | IP66 |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Color | Black |
| Product Dimensions (L x W x H) | 10.2 cm x 10.2 cm x 11.2 cm (approx. 4.0 x 4.0 x 4.4 inches) |
| Mounting Type | Wall Mount / Surface Mount |
| Recommended Uses | Truck, Construction, Outdoor, Car, Vehicle, Marine |

Image 5.1: Detailed product dimensions.
6. Setup and Installation
Follow these steps to properly install your Herdio speakers:
- Choose a Location: Select a suitable mounting location that is stable and provides optimal sound dispersion. Consider the 180-degree swivel capability of the brackets for best positioning. Examples include boat cabins, vehicle interiors, or outdoor patio walls.

Image 6.1: Example installation in a marine environment.
- Mark Drilling Points: Use the mounting bracket as a template to mark the drilling points on your chosen surface. Ensure the points are level and accurately spaced.
- Drill Pilot Holes: Drill pilot holes at the marked points. The size of the drill bit should be slightly smaller than the diameter of the mounting screws to ensure a secure fit.
- Attach Brackets: Secure the mounting brackets to the surface using the provided screws and nuts. Tighten them firmly but do not overtighten.
- Mount Speakers: Slide the speakers onto the attached brackets. The speakers are designed to easily fit into the bracket's slot.
- Adjust Angle: Adjust the speaker angle using the 180-degree swivel mechanism on the bracket to direct sound as desired. Tighten the adjustment knob to lock the angle.
- Connect Wiring: Connect the speaker wires to your audio source (e.g., amplifier, head unit). Ensure correct polarity (+ to + and - to -) for optimal sound quality. The speakers are 2-way, so connect to appropriate speaker outputs.
7. Operation
Once installed and wired, operating your Herdio speakers is straightforward:
- Power On: Turn on your audio source (amplifier, receiver, etc.) connected to the speakers.
- Volume Control: Adjust the volume level from your audio source. Start with a low volume and gradually increase it to a comfortable listening level.
- Audio Playback: Begin playing audio from your connected device.
- Sound Quality: For optimal sound, ensure your audio source is providing a clean signal. These speakers are designed for clear audio even in noisy outdoor environments.
8. Maintenance
To ensure the longevity and performance of your Herdio speakers, follow these maintenance guidelines:
- Cleaning: Regularly wipe the speaker grilles and cabinet with a soft, damp cloth to remove dust and dirt. For stubborn grime, a mild soap solution can be used, but ensure no water enters the speaker components. Dry thoroughly after cleaning.
- Inspection: Periodically check the mounting brackets and screws for tightness. Vibrations from vehicle or marine use can sometimes loosen fasteners.
- Wire Connections: Inspect speaker wire connections for corrosion or damage, especially in marine environments. Clean or replace as necessary.
- Avoid Harsh Chemicals: Do not use abrasive cleaners, solvents, or strong detergents, as these can damage the speaker's finish and materials.
9. Troubleshooting
If you encounter issues with your speakers, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speakers |
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| Distorted sound |
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| Sound from only one speaker |
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If the problem persists after trying these solutions, please contact Herdio customer support or your retailer for further assistance.
10. Warranty and Support
Herdio products are manufactured to high-quality standards. For information regarding warranty coverage, returns, or technical support, please refer to the warranty card included with your purchase or visit the official Herdio website. You may also contact your point of purchase for assistance.
For direct support, please contact Herdio customer service through their official channels.





