Hertz Marine Comp-Coax-Sub Owner's Manual
Brand: Hertz
Product Type: Marine Audio Speakers
Introduction
This manual provides essential instructions for the proper installation and use of Hertz marine audio systems, designed to deliver an exceptional "Sound Experience". Hertz products are manufactured by Elettromedia.
Safety and Installation Guidelines
General Safety:
- Always wear protective eyewear when using tools.
- Keep the product in its original packaging until ready for final installation to prevent accidental damage.
- Never install components in the engine compartment.
- Before starting installation, turn off the head unit and all other audio system devices to avoid potential damage.
- Ensure the chosen installation location does not interfere with the normal operation of the vehicle's mechanical or electrical devices.
Mounting and Installation:
- All components must be firmly secured to the vehicle/vessel structure. Ensure your installation is solid and safe.
- Do not install loudspeakers where they may be exposed to excessive water, humidity, dust, dirt, or immersion.
- Do not install tweeters without their protective grille.
- Avoid installing components or running cables near the vehicle's electrical box or other mechanical/electronic devices.
- Exercise extreme caution when drilling or cutting into the vehicle/vessel chassis, ensuring no essential cables or structural elements are present in or under the selected area.
- When routing cables, ensure they do not contact sharp edges or moving mechanical parts. Secure and protect cables along their entire length with self-extinguishing insulation.
- Use only cables with the proper section (AWG) indicated for the power supply.
- Protect cables passing through chassis holes with rubber rings (grommets). Provide adequate protection for cables running near heat-generating devices.
- Do not run wires outside the vehicle/vessel.
- Use top-quality cables, connectors, and accessories as found in the Connection catalogue.
Water Resistance:
These speakers are designed to be water and spray resistant but not submersible or resistant to high-pressure water spray. Exercise care when washing your boat to avoid damaging the speakers. Do not install on submersibles or vessels likely to be submerged.
Tweeter and Lighting
The tweeters and lighting circuit are permanently fixed to the grille. Do not use the product without the grille unless specified. Do not attempt to remove the tweeter or lighting LEDs, as any damage caused will not be covered under warranty.
Tweeter Protection: The crossover includes an electronic circuit to protect the tweeter from overload. If the tweeter disconnects due to overload, reduce the volume for a few seconds to reset the protection circuit.
Wiring Information
The manual provides diagrams for LED lighting control and speaker connection configurations (Series, Parallel, Mixed). Ensure correct voltage (+12.5 Vdc max for LEDs) and use appropriate fuses for wiring. Pay attention to polarity (+/-) when connecting speakers to the amplifier.
Technical Specifications
Key technical and electro-acoustic parameters for Hertz marine speakers:
HMX 6.5 Series Specifications
| Component | Size | Power Handling (W) | Impedance (Ω) | Magnet Size (mm) | Voice Coil Ø (mm) | Cone | Weight (Kg) |
|---|---|---|---|---|---|---|---|
| HMX 6.5 / HMX 6.5-C / HMX 6.5-TC / HMX 6.5-TW / HMX 6.5-LD / HMX 6.5-LD-C / HMX 6.5-LD-TC / HMX 6.5-LD-TW / HMX 6.5 S / HMX 6.5 S-LD | Woofer 165 (6.5) / Tweeter 36 (1.4) | 150 / 75 | 4 | 78.5 x 32 x 17 (3.09x1.26x0.67) / 19.7 x 0 x 3 (0.78 x 0 x 0.12) | 25 (1) / 20 (0.8) | Polypropylene with UV inhibitors / Neodymium | 1 (2.2) |
HMX 8 Series Specifications
| Component | Size | Power Handling (W) | Impedance (Ω) | Magnet Size (mm) | Voice Coil Ø (mm) | Cone | Weight (Kg) |
|---|---|---|---|---|---|---|---|
| HMX 8 / HMX 8-C / HMX 8-LD / HMX 8-LD-C / HMX 8-TC / HMX 8-TW / HMX 8-LD-TC / HMX 8-LD-TW / HMX 8 S / HMX 8 S-LD | Woofer 200 (8) / Tweeter 36 (1.4) | 200 / 100 | 4 | 90 x 40 x 20 (3.54x1.57 x0.79) / 19.7 x 0 x 3 (0.78 x 0 x 0.12) | 32 (1.26) / 20 (0.8) | Polypropylene with UV inhibitors / Neodymium | 1.66 (3.66) |
HMS 10 Series Specifications
| Component | Size | Power Handling (W) | Impedance (Ω) | Magnet Size (mm) | Voice Coil Ø (mm) | Cone | Weight (Kg) |
|---|---|---|---|---|---|---|---|
| HMS 10 B / HMS 10 B-C / HMS 10 B-C2 / HMS 10 B-2 / HMS 10 S-LD-G / HMS 10 S2-LD-G | Subwoofer 250 (10) | 500 / 250 | 4 / 2 | 140 x 60 x 30 (5.51 x 2.36 x 1.18) | 50 (2) | Polypropylene with UV inhibitors | 5.1 (11.24) |
Electro-Acoustic Parameters
| Parameter | HMX 6.5 Series | HMX 8 Series | HMS 10 B / HMS 10 B-C / HMS 10 B-C2 / HMS 10 B-2 | HMS 10 S-LD-G / HMS 10 S2-LD-G |
|---|---|---|---|---|
| D (mm) | 125 | 174 | 13.5 | 12,3 |
| Xmax (mm) | 3.65 | 4.5 | 13.5 | 12,3 |
| Re (Ω) | 3.5 | 3.1 | 4.5 | 2,1 |
| Fs (Hz) | 65 | 50 | 41 | 41 |
| Le (mH) | 0.53 | 0.52 | 0.9 | 0,46 |
| Vas (l) | 8.8 | 29.46 | 37 | 31 |
| Mms (g) | 14 | 27.3 | 69 | 75,6 |
| Cms (mm/N) | 0.4 | 0.37 | 0.22 | 0,18 |
| BL (T·m) | 5.2 | 6.6 | 10.2 | 8,3 |
| Qts | 0.7 | 0.58 | 0.71 | 0,6 |
| Qes | 0.75 | 0.61 | 0.76 | 0,63 |
| Qms | 11.5 | 11 | 11 | 12,3 |
| Spl (dB) | 89 | 91 | 88 | 88,5 |
Enclosure Design
The manual provides guidance on enclosure design, including dimensions and cut lists for specific HMS 10 models. These are suggestions for easier construction; alternative designs may improve bass performance.
Example Enclosure Data for HMS 10 Series:
| Model | Vb (cu. ft.) | Fb (Hz) | Qtc | External Dimensions (mm) | Mounting Hole - M (mm) | Wood Thickness (mm) | Suggested Subsonic Filter | Suggested Lo-pass Filter Cut-off | Damping Material |
|---|---|---|---|---|---|---|---|---|---|
| HMS 10 B / HMS 10 B-C / HMS 10 B-C2 / HMS 10 B-2 / HMS 10 S-LD-G / HMS 10 S2-LD-G COMPACT | 50 (1.77) | 54 | 1.05 | 440 x 440 x 365 (17.32 x 17.32 x 14.37) | 230 (9.06) | 19 (0.75) | 20 Hz | 100 Hz 24dB Oct | Pic. 2 |
| HMS 10 B / HMS 10 B-C / HMS 10 B-C2 / HMS 10 B-2 / HMS 10 S-LD-G / HMS 10 S2-LD-G PERFORMANCE | 71 (2.51) | 51 | 0.99 | 460 x 460 x 450 (18.11 x 18.11 x 17.72) | 230 (9.06) | 19 (0.75) | 20 Hz 24dB Oct | 150 Hz 12dB Oct | Pic. 2 |
Waste Disposal Information
Products marked with the crossed-out wheeled bin symbol (❌) must not be disposed of with ordinary domestic waste. Electrical and electronic products must be recycled at appropriate facilities. Contact your local municipal office for information on the nearest recycling/disposal sites. Proper recycling and disposal contribute to environmental protection and prevent harmful effects on health.
