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Hertz HMX 8-TW 8" (20cm) Coaxial Speaker
SKU:  HMX-8-TW
EAN:  8018823137515
100 Watt

HMX 8-TW

SKU:  HMX-8-TW
EAN:  8018823137515

Technical Highlights

  • 100W RMS, 4 ohm impedance, 200W peak, 45-25k Hz frequency.
  • UV-resistant polypropylene membrane, Santoprene surround.
  • Aramid centering, silicone insulated connecting wires, durable.
  • More technical details
00 d
00 h
00 m
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€249,00
-11% €279,00 €249,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Delivery
Jun 6, - Jun 9,
x pair
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HMX 8-TW by Hertz

HMX 8-TW is an 8-inch (20 cm) coaxial speaker from Hertz with 4 Ohm, 100 W RMS, and 200 W Peak. The frequency response ranges from 45 to 25000 Hz, and the sound pressure level is 91 dB. The tweeter uses neodymium and a PEI dome, is optimized for off-axis radiation, and features a 36 mm tweeter diaphragm along with a 20 mm tweeter voice coil. The woofer has a 32 mm voice coil, a high-density ferrite magnet, and a polypropylene diaphragm with UV inhibitors, along with a molded Santoprene surround. It includes an aramid fiber spider with silicone-insulated connection wires, a sealed built-in crossover with a resettable solid-state tweeter protection circuit, and gold-plated corrosion-resistant terminals. The assembly is FEM-optimized for high excursion and features a massive magnetic group in a marine-grade injected polymer basket; Xmech is ±8.5 mm. The depth is 123 mm, and the weight per speaker is 1.66 kg; magnetic assembly dimensions and other measurements are specified. Designed and tested for UV, salt mist, vibrations, splash water, temperature shock, and dust.

Features
  • 8-inch (20 cm) coaxial speaker
  • Marine-grade, designed and tested for UV, salt mist, vibrations, splash water, temperature shock, and dust
  • Neodymium tweeter 36 mm with PEI dome
  • Front plate and acoustic lens, optimized for off-axis radiation
  • Stainless steel tweeter grille
  • Polypropylene diaphragm with UV inhibitors
  • Molded Santoprene surround
  • Aramid fiber spider with silicone-insulated connection wires
  • FEM-optimized high-excursion assembly, massive magnetic group
  • Injected polymer basket in marine-grade
  • Sealed built-in crossover with resettable solid-state tweeter protection circuit
  • Gold-plated, corrosion-resistant terminals
Technical Specifications
  • Size 200 mm
  • Impedance 4 Ohm
  • Power handling RMS 100 W
  • Power handling Peak 200 W
  • Depth 123 mm
  • Tweeter diaphragm 36 mm
  • Woofer voice coil Ø 32 mm
  • Tweeter voice coil Ø 20 mm
  • Frequency response 45 - 25000 Hz
  • Woofer magnet size B x T x H 90 x 40 x 20 mm
  • Tweeter magnet size B x H 19.7 x 3 mm
  • Weight per speaker 1.66 kg
  • Woofer magnet ferrite with high density
  • Tweeter magnet neodymium
  • Xmech ±8.5 mm
  • D 174 mm
  • Re 3.1 Ohm
  • Fs 50 Hz
  • Le 0.52 mH
  • Vas 29.46 l
  • Mms 27.3 g
  • Cms 0.37 mm/N
  • Bl 6.6 T m
  • Qts 0.58
  • Qes 0.61
  • Qms 11
  • Spl 91 dB
  • Dimension A 225 mm
  • Dimension B 180 mm
  • Dimension C 123 mm
  • Dimension D 91 mm
  • Dimension F 32 mm

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Frequently Asked Questions about HMX 8-TW

What are the main features of the HMX 8-TW Marine Coaxial Speaker?

The HMX 8-TW from Hertz is an 8-inch marine coaxial speaker that stands out due to its durable materials and robust construction. Notably, it features a UV-resistant polypropylene cone that effectively repels water and dirt. The tweeter is optimized for off-axis operation, allowing for high, clear sound pressure. With a power handling of 100 watts RMS and a peak value of 200 W, the speaker delivers excellent performance. The massive magnet of the woofer and the neodymium magnets of the tweeter complement each other ideally for maximum acoustic efficiency.

How does the off-axis operation of the HMX 8-TW affect the sound?

In the HMX 8-TW from Hertz, the tweeter is specifically optimized for off-axis operation. This means that the speaker delivers clear and balanced sound even when it is not directly aimed at the listener. This feature enhances sound distribution, especially in open or asymmetrical environments like on boats. The integrated neodymium magnet and the PEI material dome further contribute to efficient high-frequency transmission, significantly improving the listening experience.

What frequency ranges does the HMX 8-TW cover?

The Hertz HMX 8-TW covers a wide frequency spectrum from 45 Hz to 25 kHz. This means that the speaker can reproduce deep bass as well as high frequencies clearly and accurately, ensuring a balanced sound profile. The long-stroke woofer with an Xmech of ±8.5 mm, combined with the finely tuned 25 mm voice coil, provides impressive low-frequency performance. Such a frequency range is ideal for those who want to experience a full sound spectrum on their boat.

What materials ensure the robustness of the HMX 8-TW?

The robustness of the HMX 8-TW from Hertz is ensured by the careful selection of materials. The diaphragm is made of UV-resistant polypropylene, which not only has excellent acoustic properties but also protects against external influences such as UV radiation, water, and dust. A massive ferrite magnet in the woofer and a neodymium magnet in the tweeter further enhance performance and durability. Additionally, an aramid fiber spider and silicone-insulated connection wires make the speaker particularly resilient and long-lasting in performance.

What are the dimensions of the HMX 8-TW and how do they affect installation?

The Hertz HMX 8-TW has a diameter of 8 inches (200 mm) and a mounting depth of 123 mm. These dimensions allow for flexible installation in most common boat installation locations. The diaphragm has a diameter of 225 mm, while the woofer's B x T x H magnet measures 90 x 40 x 20 mm. Delivered with a well-thought-out mounting system, the speaker can be seamlessly integrated, with the gold-plated corrosion-resistant terminals ensuring a secure connection. The measurements are crucial to ensure that the speaker fits into existing cutouts.

What makes the magnet structure of the HMX 8-TW so effective?

The HMX 8-TW from Hertz uses a particularly effective magnet structure for its woofer and tweeter. The woofer is equipped with a ferrite magnet that has a high density, resulting in powerful and precise bass reproduction. The tweeter utilizes a neodymium magnet that is compact and lightweight but offers remarkable magnetic properties to efficiently transmit high frequencies. This combination ensures a balanced sound and optimal performance, even under the demanding conditions of marine use.

How does the design of the HMX 8-TW contribute to its durability?

The thoughtful construction of the HMX 8-TW by Hertz promotes its exceptional durability. The speaker is embedded in a board made of polymer marine material, which provides additional structural integrity. The injected polymer structure and UV-resistant membrane make it particularly resistant to environmental influences. Furthermore, the silicone-insulated wiring with water-repellent properties offers additional protection, while the FEM-optimized moving components allow for high displacement and ensure acoustic performance.

What features does the tweeter of the HMX 8-TW have?

The HMX 8-TW by Hertz is equipped with a tweeter featuring a 1.4-inch neodymium magnet and PEI dome. This combination is designed to deliver the best sound pressure level even off-axis. The acoustic lens significantly optimizes high-frequency distribution, while the stainless steel grille not only provides protection but also ensures sound-transparent performance. The built-in crossover with a resettable solid-state protection circuit is designed to prevent potential overloads, thus ensuring the best acoustic performance and reliability.

What role does the voice coil play in the HMX 8-TW?

The HMX 8-TW by Hertz is equipped with a 32 mm voice coil for the woofer and a 20 mm voice coil for the tweeter. These coils are crucial for sound dynamics and control. The 32 mm voice coil of the woofer allows for high load capacity and displacement, while the 20 mm voice coil of the tweeter ensures precise high-frequency reproduction. The coil materials are designed for high temperatures to minimize heat generation and reliably maintain performance even during prolonged operation.

How does the crossover of the HMX 8-TW contribute to the sound?

The crossover in the HMX 8-TW by Hertz plays a critical role in sound optimization. It is sealed and integrates a resettable solid-state tweeter protection circuit. This ensures that the transition between the tweeter and woofer occurs seamlessly, allowing for clear sound separation. The protection mechanism of the tweeter minimizes the risk of overloads by effectively distributing the signals according to their frequency to the respective driver systems. This ensures a harmonious balance in the sound image, enhancing the overall experience factor of the speaker.

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The trim removal tool set is very useful for disassembling interior panels without damaging plastics or clips, especially in delicate areas, while the M8 ring terminals are of very good quality, offering solid contact and a robust finish, ideal for safe and professional power installations.

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Shipping was fast and everything arrived well packaged with no issues. Regarding the products, the AluButyl provides very good sound deadening performance, with solid material that is easy to work with, ideal for doors and areas where vibration reduction is required.

The trim removal tool set is very useful for disassembling interior panels without damaging plastics or clips, especially in delicate areas, while the M8 ring terminals are of very good quality, offering solid contact and a robust finish, ideal for safe and professional power installations.

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Shipping was fast and everything arrived well packaged with no issues. Regarding the products, the AluButyl provides very good sound deadening performance, with solid material that is easy to work with, ideal for doors and areas where vibration reduction is required.

The trim removal tool set is very useful for disassembling interior panels without damaging plastics or clips, especially in delicate areas, while the M8 ring terminals are of very good quality, offering solid contact and a robust finish, ideal for safe and professional power installations.

Overall, very satisfied with the purchase. High-quality materials suitable for professional-level car audio builds or well-finished personal projects, and a highly recommended store.

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