Introduction
Thank you for choosing Hertz Marine Tower Coaxial Speakers. These speakers are designed to deliver impressive audio performance in marine environments, featuring robust construction and innovative technologies for an enhanced listening experience. This manual provides essential information for the proper installation, operation, and maintenance of your HTX-8-M-CL-W speakers.
Safety Information
Please read all safety instructions carefully before installing and operating the speakers. Failure to follow these instructions may result in injury or damage to the product.
- Always disconnect power before performing any installation or maintenance.
- Ensure proper wiring and connections to prevent electrical hazards.
- Do not expose speakers to extreme temperatures or direct sunlight for prolonged periods.
- Use appropriate tools and techniques to avoid damaging the speakers or mounting surfaces.
- Consult a professional installer if you are unsure about any part of the installation process.
Package Contents
Verify that all items are present in the package:
- 2 x Hertz HTX-8-M-CL-W 8" Marine Tower Coaxial Speakers with Clamps
- 1 x Pry Kit
- 1 x Creative Audio Coozy

Image: Hertz HTX-8-M-CL-W Marine Tower Coaxial Speakers.
Setup and Installation
The Hertz HTX-8-M-CL-W speakers feature a solid 316-Stainless steel clamp mounting system, ideal for round or square profile pipe applications. The Q-OS² (Quick Orientation & Release for Sound & Safety) patent pending technology allows for easy orientation and quick release.
Mounting the Speakers
- Select Mounting Location: Choose a sturdy pipe or tower location that can support the weight of the speakers and provide optimal sound dispersion. Ensure there is sufficient clearance for speaker rotation and wiring.
- Prepare the Clamp: Loosen the clamp mechanism on the speaker mount. The clamp is designed for various pipe diameters.
- Attach to Pipe: Position the clamp around the chosen pipe. Ensure a secure fit.
- Tighten Clamp: Securely tighten the clamp using appropriate tools. Do not overtighten, but ensure the speaker is firmly in place and does not wobble.
- Adjust Logo Orientation: The "Adjustable logo" feature allows for correct Hertz logo orientation regardless of tower positioning. Rotate the front and rear logos within 64 steps to achieve the desired alignment.

Image: Close-up of the speaker clamp mounting system.
Wiring Connections
These speakers have a 4 Ohm impedance. Ensure your amplifier is compatible and correctly wired to prevent damage.
- 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 insulated to prevent short circuits.
- Refer to your amplifier's manual for specific wiring diagrams and recommendations.

Image: Speaker grille with Hertz logo.
Operating Instructions
Once properly installed and wired, your Hertz marine speakers are ready for operation.
- Power On: Turn on your marine audio system and amplifier.
- Volume Control: Start with the volume at a low level and gradually increase it to your desired listening level. Avoid excessive volume that may cause distortion or damage to the speakers.
- Sound Adjustment: Use your amplifier's tone controls (bass, treble, balance, fader) to optimize the sound quality to your preference.
- Q-OS² Technology: Utilize the Quick Orientation & Release feature to adjust the speaker direction for optimal sound projection or to quickly remove them for safety or storage.
Maintenance
Regular maintenance will ensure the longevity and optimal performance of your marine speakers.
- Cleaning: Clean the speaker grilles and enclosures with a soft, damp cloth. For stubborn dirt, use a mild soap solution. Avoid abrasive cleaners or solvents.
- Saltwater Exposure: After exposure to saltwater, rinse the speakers with fresh water to prevent salt buildup and corrosion.
- Inspection: Periodically inspect all wiring connections and mounting hardware for tightness and signs of wear or corrosion.
- Storage: If storing the boat for an extended period, consider removing the speakers and storing them in a dry, temperate environment.
Troubleshooting
If you encounter issues with your speakers, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound | Loose or incorrect wiring. Amplifier off or faulty. | Check all speaker and amplifier connections. Ensure amplifier is powered on and functioning. |
| Distorted Sound | Volume too high. Amplifier clipping. Incorrect impedance match. | Reduce volume. Check amplifier gain settings. Verify amplifier impedance matches speakers (4 Ohms). |
| Intermittent Sound | Loose connections. Corroded terminals. | Inspect and secure all wiring. Clean any corroded terminals. |
| Speakers Not Secure | Clamp not tightened sufficiently. | Re-tighten the clamp mechanism on the mounting pipe. |
If the problem persists after trying these solutions, please contact Hertz customer support or a qualified technician.
Specifications
| Feature | Detail |
|---|---|
| Model Name | HertzBDL210920-04 (HTX-8-M-CL-W) |
| Speaker Type | Coaxial |
| Power Handling (Peak) | 200W |
| Impedance | 4 Ohms |
| Frequency Response | 45Hz-25kHz |
| Sensitivity | 91dB |
| Woofer Magnet | Ferrite |
| Tweeter Magnet | Neodymium |
| Cone Material | Polypropylene with UV Inhibitors |
| Dome Material | PEI |
| Woofer Diameter | 8 Inches |
| Color | White |
| Mounting Type | Boat Mount, Clamp Mount |
| Waterproof | TRUE |
| Item Weight | 24 Pounds (for the pair) |
| Package Dimensions | 19 x 15 x 9 inches |
Warranty and Support
Hertz products are manufactured to the highest quality standards. This product comes with a Limited Warranty. Please refer to the warranty card included with your purchase or visit the official Hertz website for detailed warranty terms and conditions.
For technical support, troubleshooting assistance, or warranty claims, please contact Hertz customer service or your authorized dealer. You can find contact information on the official Hertz website or through your purchase documentation.
Online Resources:
- Visit the official HERTZ Store on Amazon for more product information and accessories.





