Herdio HMS5104W
Herdio 4-Inch Waterproof Marine Speakers User Manual
Model: HMS5104W
Brand: Herdio
Product Overview
The Herdio 4-inch Waterproof Marine Speakers (Model HMS5104W) are designed for versatile audio applications in various environments, including marine, automotive, and home settings. These speakers are built to withstand heavy water splashes and other outdoor conditions, making them suitable for use in boats, yachts, ATVs, UTVs, golf carts, powersports vehicles, motorcycles, heavy-duty vehicles, kitchens, bathrooms, SPA rooms, swimming pools, campers, and RZRs.
Each pair of speakers offers a maximum power handling of 160 Watts, delivering clear audio with a frequency response of 100Hz - 18Khz and an SPL of 89dB. Their low-profile design allows for easy flush mounting on flat surfaces.

Figure 1: Herdio 4-inch Waterproof Marine Speakers (Pair)
This image displays a pair of the Herdio 4-inch marine speakers, showcasing their compact, circular design with a black finish and a protective perforated grille. These speakers are designed for flush mounting in various applications.
Package Contents
Before beginning installation, please verify that all components are present in the package:
- 1 Pair of Herdio 4-inch Marine Speakers
- Mounting Screws
- 6.5 feet Speaker Wires (1 pair)
- Speaker Welcome Guide (User Manual)

Figure 2: Included Components
This image illustrates the complete contents of the Herdio speaker package, showing the two speakers, a set of mounting screws, the included speaker wires, and the user manual, all neatly arranged.
Installation and Setup
The Herdio marine speakers are designed for easy flush mounting. Proper installation ensures optimal performance and longevity.
1. Choosing a Mounting Location
Select a flat surface that can accommodate the speaker dimensions. Ensure there is sufficient depth behind the mounting surface for the speaker body. These speakers are suitable for ceiling, wall, or marine flush mounting.
- Overall Diameter: 4.88 inches (124mm)
- Mounting Hole Diameter (Cutout Diameter): 3.82 inches (97mm)
- Mounting Depth: 1.38 inches (35mm)

Figure 3: Installation Dimensions
This diagram provides critical measurements for speaker installation, including the overall diameter, cutout diameter, and mounting depth, ensuring a precise fit for flush mounting.
2. Preparing the Mounting Surface
- Using the provided dimensions (Cutout Diameter: 3.82 inches / 97mm), carefully mark the circular cutout area on your chosen mounting surface.
- Cut the marked hole using an appropriate tool (e.g., a hole saw). Ensure the cut is clean and precise.
- Mark the locations for the mounting screws around the cutout, aligning with the speaker's screw holes.
3. Wiring the Speakers
These are passive speakers and require connection to an external amplifier (not included). Use the provided 6.5-foot speaker wires for connection.
- Connect the positive (+) terminal of the speaker to the positive (+) output of your amplifier.
- Connect the negative (-) terminal of the speaker to the negative (-) output of your amplifier.
- Ensure all connections are secure and properly insulated to prevent short circuits.

Figure 4: Speaker Wiring Diagram
This image illustrates the wiring process, showing how to connect the Herdio speakers to an external amplifier using the provided speaker wires. It emphasizes that the amplifier is a separate component.
4. Mounting the Speakers
- Carefully insert the speaker into the cutout hole.
- Align the speaker's screw holes with the marked locations on the mounting surface.
- Secure the speaker using the provided mounting screws. Do not overtighten.
Operating Instructions
Once installed and connected to a compatible amplifier, your Herdio marine speakers are ready for use.
- Ensure your amplifier is powered on and properly connected to your audio source (e.g., smartphone, tablet, laptop, marine stereo system).
- Adjust the volume and audio settings on your amplifier or audio source to your desired level.
- These speakers are designed for a wide range of applications, including marine, outdoor, and indoor environments.

Figure 5: Waterproof Design
This image highlights the waterproof nature of the Herdio speakers, showing water droplets on the grille, indicating their suitability for wet environments like boats, bathrooms, or outdoor patios.
Maintenance and Care
To ensure the longevity and optimal performance of your Herdio Waterproof Marine Speakers, follow these maintenance guidelines:
- Cleaning: Regularly wipe the speaker grilles and surfaces with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners, as these can damage the speaker's finish or waterproof sealing.
- Water Exposure: While the speakers are completely waterproof and designed to withstand heavy water splashes, avoid prolonged submersion. After exposure to saltwater, it is recommended to rinse the speakers with fresh water to prevent salt buildup.
- Environmental Conditions: Although built for outdoor use, extreme temperatures or direct, prolonged exposure to harsh UV rays can affect material degradation over time.
- Connections: Periodically check the wiring connections to ensure they remain secure and free from corrosion, especially in marine environments.
Troubleshooting
If you encounter issues with your Herdio speakers, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound |
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| Distorted Sound |
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| Intermittent Sound |
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Technical Specifications
| Feature | Specification |
|---|---|
| Model Name | HMS5104W |
| Speaker Type | Passive |
| Speaker Size | 4 Inches |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Speaker Maximum Output Power | 160 Watts (Pair) |
| Frequency Response | 100Hz - 18Khz |
| SPL (1Watt/1Meter) | 89dB |
| Impedance | 4 Ohms |
| Magnet Material | 3.4oz |
| Cone Material | Polypropylene Cone with Rubber Edge |
| Basket Material | Molded ABS Plastic Basket |
| Water Resistance Level | Waterproof |
| Product Dimensions (D x W x H) | 1.37"D x 4.88"W x 3.8"H |
| Mounting Type | Ceiling Mount, Marine Ceiling, Wall Mount |
| Recommended Uses | Kitchen, Outdoor, Boats, Yachts, ATVs, UTVs, Golf Carts, Powersports, Motorcycles, Heavy-duty Vehicles, SPA Rooms, Swimming Pools, Campers, Cubby Cabins, RZR, Harvesters, Excavators, Jet Skis, Hot Tub Trucks |
| Item Weight | 1.7 pounds |
| Manufacturer | Herdio |
Warranty and Support
Herdio provides a 12-Month Warranty for these marine speakers, covering manufacturing defects and material flaws under normal use. Additionally, customers receive life-time after-sales service support.
For warranty claims, technical assistance, or any product-related inquiries, please contact Herdio customer support through the official channels or visit the Herdio store on Amazon:
Visit the Official Herdio Store on Amazon
Please have your product model number (HMS5104W) and purchase details ready when contacting support.
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