Hertz
Hertz HMX 8 LD / CHMX 8 LD Hi-Performance Marinet Coaxial Speakers
The HMX 8 LD hi-performance marinet coaxial speakers with RGB LEDs lighting option, also available in the black option HMX 8-LD-C, is optimized to perform in infinite baffle, with a solid bass and an outstanding output.
Highlights
- Integrated RGB LED lighting to enhance your experience in combination with the HM RGB 1 BK accessory.
- Engineered and tested for the real environment of application (UV, salt-fog, vibrations, water spray, thermal shock, dust).
- 4” Neodymium magnet tweeter featuring a PEI material dome combined with faceplate and acoustic lens optimized for best off-axis dispersion and highest SPL.
- Sound-transparent stainless steel tweeter mesh grille providing efficient high-frequency transfer, attractive look and a rock-solid protection.
Key specs
Full specs- Component
- HI-END LED COAX
- Size mm (in.)
- 224 (8.8)
- Power Handling - Continuous W
- 100
- Power Handling - Peak W
- 200
- Impedance Ohm
- 4
- Depth mm (in.)
- 123 (4.84)
- Woofer Voice Coil Ø mm (in.)
- 32 (1.26)
- Tweeter Voice Coil Ø mm (in.)
- 20 (0.8)
Key specs
Full specs- Component
- HI-END LED COAX
- Size mm (in.)
- 224 (8.8)
- Power Handling - Continuous W
- 100
- Power Handling - Peak W
- 200
Highlights
Overview- Integrated RGB LED lighting to enhance your experience in combination with the HM RGB 1 BK accessory.
- Engineered and tested for the real environment of application (UV, salt-fog, vibrations, water spray, thermal shock, dust).
- 4” Neodymium magnet tweeter featuring a PEI material dome combined with faceplate and acoustic lens optimized for best off-axis dispersion and highest SPL.
Overview
Key features
- Integrated RGB LED lighting to enhance your experience in combination with the HM RGB 1 BK accessory.
- Engineered and tested for the real environment of application (UV, salt-fog, vibrations, water spray, thermal shock, dust).
- 4” Neodymium magnet tweeter featuring a PEI material dome combined with faceplate and acoustic lens optimized for best off-axis dispersion and highest SPL.
- Sound-transparent stainless steel tweeter mesh grille providing efficient high-frequency transfer, attractive look and a rock-solid protection.
- Long-throw 32 mm (1.26”) voice coil woofer fine-tuned for infinite baffle application featuring polypropylene cone injected with UV inhibitors and co-molded Santoprene surround.
- Aramid fiber spider with silicone-insulated lead wires ensuring durability and constant performance over time.
- FEM optimized high-excursion mobile equipment driven by a massive magnetic group encapsulated into a marine-grade polymer injected basket.
- Sealed built-in crossover with resettable solid-state tweeter protection circuit .
- Gold-plated corrosion resistant terminals.
- RGB MULTICOLOR
- IP 65 CERTIFICATION
- WATER JET TESTED
Technologies

RGB MULTICOLOR
Built-in RGB led lighting creates sophisticated atmosphere, adding tons of class to your vessel.

IP 65 CERTIFICATION

WATER JET TESTED
The protection grade IP65 for speakers define all the Hertz Marine products as totally protected against water

UV RESISTANT
According to the severe ASTM-D4329 standards for UV resistance, all the materials used for Hertz Marine products

SALT FOG TESTED
To satisfy the standards required by ASTM-B117, Hertz Marine products are tested with massive salt fog spray to
Specs
Technical Specs
| Component | HI-END LED COAX |
| Size mm (in.) | 224 (8.8) |
| Power Handling - Continuous W | 100 |
| Power Handling - Peak W | 200 |
| Impedance Ohm | 4 |
| Depth mm (in.) | 123 (4.84) |
| Woofer Voice Coil Ø mm (in.) | 32 (1.26) |
| Tweeter Voice Coil Ø mm (in.) | 20 (0.8) |
| Frequency Response Hz | 45 ÷ 25k |
| Woofer Magnet size D x d x h mm (in.) | 90 x 40 x 20 (3.54 x 1.57 x 0.79) |
| Tweeter Magnet size D x h mm (in.) | 19,7 x 3 (0.78 x 0.12) |
| Weight of one speaker kg (lb.) | 1,66 (3.66) |
| Woofer Magnet | High density flux ferrite |
| Tweeter Magnet | Neodymium |
| Cone | Polypropylene with UV inhibitors |
| Dome | PEI |
| Xmech mm (in.) | ±8,5 (0.33) |
Electro-acoustic Specs
| D mm | 174 |
| Re Ohm | 3,1 |
| Fs Hz | 50 |
| Le mH | 0,52 |
| Vas I | 29,46 |
| Mms g | 27,3 |
| Cms mm/N | 0,37 |
| BL T*m | 6,6 |
| Qts | 0,58 |
| Qes | 0,61 |
| Qms | 11 |
| Spl dB | 91 |
Physical Specs

| A | 225 mm | 8.86 in. |
| B | 180 mm | 7.09 in. |
| C | 123 mm | 4.84 in. |
| D | 91 mm | 3.58 in. |
| F | 32 mm | 1.26 in. |
Frequency response

Visual spec reference.
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HM RGB 1 BK
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