3. Currently reduced
  5. HMX 7.7 S-LD-SW

HMX 7.7 S-LD-SW

100 Watt

HMX 7.7 S-LD-SW

Technical Highlights

  • 100W RMS, 4 ohm impedance, 200W peak, 45-25k Hz frequency.
  • ASA plastic, polypropylene cone, Santoprene surround.
  • Hi-end LED coax, 91 dB sound pressure, long-lasting.
  • More technical details
€293.55
-5% €309.00 €293.55
2% discount with credit card

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ProductHMX 7.7 S-LD-SW

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Hertz-HMX 7.7 S-LD-SW-8" (20cm) Koaxial-Lautsprecher-masori-kaufen
€293.55
€309.00 €293.55

HMX 7.7 S-LD-SW is a 7.7-inch coaxial speaker from Hertz, designed for marine environments. The construction consists of special ASA plastic and a polypropylene cone with Santoprene surround. The system has a peak power of 200 watts and a nominal power of 100 watts at an impedance of 4 ohms. Features include a high-end LED coax and a sporty, paintable grille. The frequency range extends from 45 Hz to 25 kHz with a sound pressure level of 91 dB. The mechanical components include a neodymium magnet for the tweeter and a high-density ferrite magnet for the woofer.

Features
  • 8-inch (20 cm) coaxial speaker
  • Nominal power: 100 watts RMS
  • Peak power: 200 watts
  • Impedance: 4 ohms
  • High-end LED coax
  • Diaphragm material: polypropylene with UV inhibitors
  • Dome material: PEI
  • ASA plastic housing with Santoprene surround
  • Sporty, paintable grille
Technical Specifications
  • Diameter: 196 mm
  • Mounting depth: 113 mm
  • Tweeter diameter: 36 mm
  • Woofer voice coil diameter: 32 mm
  • Tweeter voice coil diameter: 20 mm
  • Frequency range: 45 Hz to 25 kHz
  • Woofer magnet size: 90 x 40 x 20 mm
  • Tweeter magnet size: 19.7 x 3 mm
  • Weight per speaker: 1.66 kg
  • Mechanical displacement (Xmech): ±8.5 mm
  • Maximum displacement (Xmax): 6 mm
  • Resistance (Re): 3.3 ohms
  • Resonance frequency (Fs): 60 Hz
  • Inductance (Le): 0.56 mH
  • Equivalent volume (Vas): 12.50 l
  • Mass of diaphragm (Mms): 22 g
  • Compliance (Cms): 0.32 mm/N
  • Magnetic field strength (BL): 6 T*m
  • Total quality factor (Qts): 0.72
  • Energy loss quality factor (Qes): 0.76
  • Mechanical quality factor (Qms): 11.8
  • Sound pressure level (SPL): 91 dB

Frequently Asked Questions about HMX 7.7 S-LD-SW

How large is the Hertz HMX 7.7 S-LD-SW speaker?

The Hertz HMX 7.7 S-LD-SW speaker has a diameter of 196 mm, which is equivalent to 7.7 inches. This size optimizes sound reproduction with powerful bass and clear high frequencies, making it ideal for use in marine environments. With a mounting depth of 113 mm, it fits into many installation locations, allowing for flexible integration into the surroundings. The speaker is designed to perform optimally in maritime conditions, even under the harshest weather. Its compact design with high-quality materials ensures long-lasting performance and withstands extreme environmental conditions.

What power does the Hertz HMX 7.7 S-LD-SW speaker provide?

The Hertz HMX 7.7 S-LD-SW offers an impressive peak power of 200 watts at a nominal impedance of 4 ohms, enabling powerful sound reproduction for marine applications. The nominal power is 100 watts, ensuring steady and clear audio performance. This ability to handle high power makes the speaker suitable for loud environments like on sports boats. The high durability ensures minimal sound distortion even at maximum volume, which is crucial in windy conditions.

What material is the diaphragm of the Hertz HMX 7.7 S-LD-SW speaker made of?

The diaphragm of the Hertz HMX 7.7 S-LD-SW is made of polypropylene with UV inhibitors, making the speaker particularly resistant to sunlight and other environmental factors. This material choice ensures clear and resonant sound reproduction while also guaranteeing durability under harsh conditions. The polypropylene cone balances the necessary ratio between stiffness and movement, which is essential for accurately reproducing a wide range of frequencies. This construction guarantees long-lasting reliability and consistent sound quality in maritime conditions.

What is the frequency range of the HMX 7.7 S-LD-SW?

The frequency range of the Hertz HMX 7.7 S-LD-SW speaker extends from 45 Hz to 25 kHz. This wide range allows for an extended reproduction of low to high frequencies, ensuring a comprehensive sound experience. The speaker can clearly and accurately reproduce both deep bass frequencies and very high tones. This frequency coverage is ideal for music lovers who do not want to miss any part of the audio spectrum while on the water and enjoy listening to music in various genres and volumes.

Which marine environments is the Hertz HMX 7.7 S-LD-SW compatible with?

The Hertz HMX 7.7 S-LD-SW is specifically designed for marine environments, supported by its materials and construction. The ASA plastic structure and polypropylene membrane with Santoprene surround are developed for use under demanding environmental conditions commonly found on the water. These include intense UV radiation, saltwater mist, and extreme temperature changes. The speaker guarantees above-average lifespan and consistent audio quality, even under changing weather conditions. It seamlessly integrates into the lines of modern sport boats, providing strong sound even at high speeds.

How does the Hertz HMX 7.7 S-LD-SW speaker affect sound reproduction on the water?

The HMX 7.7 S-LD-SW from Hertz manages to transmit strong and clear sound waves over the water thanks to its sound pressure level of 91 dB. Combined with a maximum excursion of Xmax 6 mm, it effectively handles complex wave movements. Especially in open water, where sound can often be lost, its design improves sound propagation, delivering consistent listening enjoyment even in turbulent conditions. For music lovers who rely on captivating sound in marine environments, the HMX 7.7 S-LD-SW is indispensable.

What technical features does the Hertz HMX 7.7 S-LD-SW coaxial speaker have?

The Hertz HMX 7.7 S-LD-SW offers a variety of technical features: it has a mounting depth of 113 mm and a woofer magnet made of high-density ferrite. The tweeter has a diameter of 36 mm and a neodymium magnet that ensures excellent high-frequency performance. Thanks to its hi-end LED coax and a mechanical excursion value (Xmech) of ±8.5 mm, it provides exceptional containment capabilities. The well-established Thiele-Small parameters, such as a total quality factor Qts of 0.72 and a resonance frequency Fs of 60 Hz, create a deep understanding of sound for optimal audio balance.

What is the mechanical quality of the HMX 7.7 S-LD-SW and why is it important?

The mechanical quality (Qms) of the Hertz HMX 7.7 S-LD-SW is 11.8, which defines its ability to efficiently convert vibrations into sound energy. A higher Qms value indicates that less energy is wasted on design-related damping, resulting in vibrant bass reproduction. This is particularly important for large membranes used in water, as minor construction-related losses could diminish the sound experience. Even at high volumes, the sound remains clear and dynamic, enhancing musical performance in acoustically challenging environments.

Is the Hertz HMX 7.7 S-LD-SW easy to install?

With a mounting diameter of 196 mm and a mounting depth of 113 mm, the Hertz HMX 7.7 S-LD-SW proves to be relatively easy to install, provided the designated mounting locations are properly prepared. The speaker has been specifically designed for marine environments, meaning it fits in many sports boats and marine installation spots. Tip: Check the mounting opening before installation and use appropriate seals to protect the speaker from water damage. Installation can be made easier with the included mounting instructions to ensure lasting sound quality.

What sound pressure level can be achieved with the Hertz HMX 7.7 S-LD-SW?

The Hertz HMX 7.7 S-LD-SW achieves an impressive sound pressure level of 91 dB, ensuring clear and defined sound transmission even in busy or loud environments. This level means that the speaker effectively converts acoustic energy into audible sound pressure, which is particularly advantageous in noisy conditions, such as those often encountered on open waters with strong winds. The high SPL ensures that an outstanding music performance is delivered outdoors, masterfully covering every frequency range and elevating the listening experience.

Manufacturer information/responsible person

Elettromedia SpA
62018 Potenza Picena (MC)
Strada Regina km 3,500
Italy

Contact person:
Simone Iampieri
Executive Director Assistant
T +39 0733 870 813
Elettromedia SpA
62018 Potenza Picena (MC) Italy
Strada Regina km 3,500
T + 39 0733 870 870

Contact: simone.iampieri@elettromedia.it

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