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Hertz

HMX 7.7 S-LD-SW

8" (20cm) coaxial speaker

Normal price 309,00€
Normal price 309,00€ selling price 309,00€
incl. VAT , possibly plus shipping

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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.
Seen more cheaply Personal Offer
brand: Hertz
Delivery time:
Available for delivery, with you in 2-5 days
Number:
Couple
Watt RMS:
100
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Normal price 309,00€
Normal price 309,00€ selling price 309,00€

Discover the Hertz HMX 7.7 S-LD-SW, a 7.7" coaxial speaker specifically designed for marine applications. With a sporty, paintable grille, it fits perfectly with the dynamic lines of sporty boats. Thanks to its construction from special ASA plastic and polypropylene cone with Santoprene surround, it is well-equipped for harsh environmental conditions. The speaker offers a peak power of 200 watts at an impedance of 4 ohms, ensuring powerful sound reproduction. Additionally, it features a hi-end LED coax, a frequency range of 45 Hz to 25 kHz, and an impressive sound pressure level of 91 dB. This model ensures that you can enjoy top-notch audio quality on the water throughout the seasons.

features

  • 196 (7.7) mm (in.)
  • 113 (4.4) mm (in.)
  • Hi-end Led Coax
  • 200 W
  • 4 Ohm

Technical Data

  • Diameter: 196 mm
  • Rated power: 100 W
  • Peak performance: 200 W
  • Impedance: 4 Ohm
  • Installation depth: 113 mm
  • Tweeter diameter: 36 mm
  • Woofer voice coil diameter: 32 mm
  • Tweeter 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
  • Woofer-Magnet: High-density ferrite
  • Tweeter Magnet: Neodymium
  • Membrane material: polypropylene with UV inhibitors
  • Dome-Material: PEI
  • Mechanical deflection (Xmech): ±8.5 mm
  • Diameter: 146 mm
  • Maximum deflection (Xmax): 6 mm
  • Resistance (Re): 3.3 Ohm
  • Resonance frequency (Fs): 60 Hz
  • Inductance (Le): 0.56 mH
  • Equivalent Volume (Vas): 12.50 l
  • Mass of the membrane (Mms): 22 g
  • Compliance (Cms): 0.32 mm/N
  • Magnetic field strength (BL): 6 T*m
  • Total Quality (Qts): 0.72
  • Energy loss quality (Qes): 0.76
  • Mechanical Quality (Qms): 11.8
  • Sound Pressure Level (SPL): 91 dB
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 through powerful bass response 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 the maritime sector, even under the harshest weather conditions. The compact design with high-quality materials ensures long-lasting performance and withstands extreme environmental conditions.
The HMX 7.7 S-LD-SW from Hertz 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 such as on sports boats. The high load capacity ensures that even at maximum volume, minimal sound distortion occurs, which is crucial in windy conditions.
The membrane 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 choice of material 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 the accurate reproduction of a wide range of frequencies. This construction guarantees long-lasting reliability and consistent sound quality in marine conditions.
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 reproduction. The speaker can thus reproduce both deep bass frequencies and very high tones clearly and without distortion. This frequency coverage is ideal for music lovers who do not want to miss any part of the audio spectrum even on the water and enjoy listening to music in various genres and volumes.
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 the polypropylene membrane with Santoprene surround have been developed for use under demanding environmental conditions commonly found on the water. These include intense UV radiation, saltwater mist, and extreme temperature fluctuations. The speaker guarantees above-average lifespan and consistent audio quality, even under changing weather conditions. It seamlessly integrates into the lines of modern sports boats and delivers strong sound even at high speeds.
The HMX 7.7 S-LD-SW from Hertz manages to transmit strong and clear sound waves over water thanks to its sound pressure level of 91 dB. In combination with a maximum displacement 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 by delivering a consistent listening experience even in turbulent conditions. For music lovers who rely on captivating sound in maritime environments, the HMX 7.7 S-LD-SW is indispensable.
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 frequencies. Thanks to its high-end LED coax and a mechanical displacement 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 sound understanding for optimal audio balance.
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 a lively bass reproduction. This is particularly important for large membranes used in water, as slight construction-related losses could diminish the sound experience. Even at high volumes, the sound remains clear and dynamic, enhancing the musical performance in acoustically challenging environments.
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 that the designated mounting locations are properly prepared. The speaker has been specifically designed for marine environments, which means it fits into many types of sports boats and marine installation sites. 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 installation instructions to ensure lasting sound quality.
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 a remarkable music performance is delivered outdoors, masterfully covering every frequency range and elevating the listening experience.

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

Product Specifications


Manufacturer

Features


  • 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.

weight

1.66 kg

Watt RMS Load Capacity

100

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Your advantages with Masori


Hertz HMX 7.7 S-LD-SW 7.7 coaxial loudspeaker for marine applications buy online at a great price

If you're looking for a powerful coaxial speaker for marine applications, the Hertz HMX 7.7 S-LD-SW is the right choice for you. With a peak power of 200 watts and an impedance of 4 ohms, this speaker delivers powerful sound reproduction that impresses even in harsh conditions. The Hertz 7.7-inch speaker boasts an impressive frequency range of 45 Hz to 25 kHz, allowing you to enjoy both deep bass and clear highs. Another highlight is the remarkable sound pressure level of 91 dB, ensuring the volume you need. The use of ASA plastic and a polypropylene cone with Santoprene surround ensures durability, even under the most challenging conditions. And with the sporty, paintable grille, it's a perfect match for the dynamic lines of sporty boats. In addition to these features, you benefit from the lowest price guarantee at masori.de, which always ensures you get the best price.

Thiele-Small parameters and their effects on the audio performance of the Hertz 7.7 coaxial loudspeaker

The Thiele-Small parameters of the Hertz HMX 7.7 S-LD-SW are crucial for its performance in marine environments. With a resonance frequency (Fs) of 60 Hz, the loudspeaker is perfectly tuned to reproduce low frequencies with precision. The overall quality factor (Qts) of 0.72 indicates that it is suitable for both sealed and bass-reflex loudspeaker cabinets. The mechanical quality factor (Qms) of 11.8 indicates high mechanical efficiency, while an electrical quality factor (Qes) of 0.76 confirms good performance in terms of electromechanical conversion. The force factor (BL) of 6 T*m demonstrates the magnetic efficiency of the voice coil and plays a crucial role in detailed sound reproduction. The equivalent volume value (Vas) of 12.50 l and the compliance (Cms) of 0.32 mm/N underline the loudspeaker's ability to produce powerful bass. A higher Vas value would result in deeper bass reproduction, while a higher Cms would provide greater mobility.

The importance of the frequency response from 45 Hz to 25 kHz in Hertz's 7.7 coaxial speaker

The Hertz HMX 7.7 S-LD-SW impresses with a wide frequency response from 45 Hz to 25 kHz, ensuring a balanced sound. This frequency range ensures that both deep bass and high frequencies are reproduced cleanly and without distortion. Compared to competing products in the car hi-fi market, which often only offer a more limited frequency range, this value represents a significant advantage. A wider frequency response would provide even more detail in the highs, while a narrower one could result in certain frequencies not being reproduced ideally. This type of frequency response is ideal for those who want to experience a full sound spectrum and exploit the full potential of their audio systems, especially on the water.

Peak power of 200 watts and its implications for the Hertz 7.7 coaxial speakers

With an impressive 200 watts of peak power, the Hertz HMX 7.7 S-LD-SW delivers both volume and fidelity. This peak power allows the speaker to effortlessly handle sudden volume increases without distortion, making it ideal for use in varying conditions on the water. Combined with the 100-watt power rating, the speaker ensures you have the freedom to enjoy the full dynamic range of your music, even at elevated volume levels. A lower peak power rating might make it difficult to get clear sound in noisy environments, while a higher peak power rating would require unnecessary power without noticeably increasing performance.

Mechanical excursion (Xmech) of ±8.5 mm for the 7.7 coaxial speaker from Hertz

The Hertz HMX 7.7 S-LD-SW's mechanical excursion, or Xmech, of ±8.5 mm speaks to the robustness and flexibility of this speaker. A larger excursion allows the speaker to handle extreme movements of the speaker cone with high precision, which is particularly beneficial for bass-heavy music or at high volumes. Compared to other standard speakers, which often have a lower Xmech, this speaker allows you to reproduce extremely dynamic and bass-rich tracks without experiencing mechanical distortion. A lower excursion, on the other hand, could compromise the reproduction of low frequencies, as the cone would have less room to move to respond to the bass.

Impedance of 4 ohms and how it affects the Hertz coaxial speaker

The Hertz HMX 7.7 S-LD-SW's impedance is 4 ohms, striking a balance between sound quality and efficient use of amplifier power. This ohm rating is widely used in car hi-fi and ensures optimal power transfer from the speaker, making it a perfect companion for various amplifier systems. A higher impedance value could result in lower volume levels, as the speaker requires more power, while a lower impedance value might increase the load on the amplifier, especially at higher volumes.

The sound pressure level (SPL) of 91 dB of the Hertz HMX 7.7 and its effect on the volume

The Hertz HMX 7.7 S-LD-SW's 91 dB sound pressure level, or SPL, is ideal for powerful and detailed sound reproduction. A higher SPL value means the speaker can convert more sound energy into audible sound, which in practice means this speaker plays louder than many competing products with the same amplifier power. This is a decisive advantage in noisy environments, such as those commonly found on the water. A lower SPL value could reduce the maximum volume and thus impair the enjoyment of the music.

Materials of the membrane and dome of the 7.7 Hertz coaxial speaker

The Hertz HMX 7.7's diaphragm is made of polypropylene with UV inhibitors, making it extremely resistant to sunlight and moisture. This is especially important for marine applications, where the speaker is regularly exposed to direct sunlight and moisture. The PEI dome material ensures clarity and brilliance in the high frequency ranges. Using other materials could compromise durability and sound quality in harsh environments. Both materials are selected to work together to ensure consistently high sound quality, even under the most demanding conditions.

Compatibility and installation in the maritime environment for Hertz 7.7 coaxial speakers

Specially developed for maritime applications, the Hertz HMX 7.7 S-LD-SW is prepared for rugged use. The use of ASA plastic in its construction ensures that the speaker is extremely resistant to salt water, UV radiation, and other weather-related influences. With a mounting depth of 113 mm, this speaker fits easily into even the tight spaces often found on boats. Installation in your boat is made easier by the easily accessible and clearly labeled connection terminals, allowing for quick and secure connection. If you need assistance with installation, our on-site installation team in Frankfurt (Oder) is available. Unlock the full potential of your sound system with clear and powerful sound reproduction on the go.

Connection options and accessories of the Hertz HMX 7.7 S-LD-SW

For complete audiophile enjoyment on the water, the right connection is crucial. The Hertz HMX 7.7 S-LD-SW features high-quality terminal blocks that ensure reliable contact and a durable connection to your amplifier system. These ensure the transmission of your audio signals with virtually no loss. For even more support, you'll find answers to frequently asked questions and helpful tips about this product in Masori's expert support FAQ & Help . This way, you can be sure that your marine sound system will perform at the highest level and last a lifetime.

More information and support for Hertz speakers from Masori

If you'd like to learn more about the Hertz HMX 7.7 S-LD-SW or marine audio systems in general, the Masori Audio Blog offers valuable insights and comprehensive reviews. Here, you'll find technical details, tips for optimal speaker selection, and inspiration for improving your sound setup. Whether you're planning an upgrade or looking for specific solutions, at Masori, you'll find not only the right products but also the expertise needed to take your car hi-fi experience to the next level.