The HMX 6.5-TW represents the pinnacle of Hertz innovation. It is a marine coaxial speaker with a 6.5 inch (16.5cm) diameter, distinguished primarily by its excellent technical features. Its tweeter is optimized for maximum sound pressure levels in off-axis operation and impresses with a robust and durable design. Additionally, the speaker features a UV-resistant polypropylene cone, protected from environmental influences such as water, dust, and mud by its Santoprene rubber surround, basket, and grille. Furthermore, the speaker's stable performance over time is ensured by the aramid spider with silicone-insulated lead wires. Another major advantage is a massive magnet that produces high, undistorted sound pressure levels.

Technical Data

• Size mm 165
• Power Handling - RMS W 75
• Power Handling - Peak W 150
• Impedance Ohm 4
• Depth mm 95.6
• Tweeter Diaphragm mm 36
• Woofer Voice Coil Ø mm 25
• Tweeter Voice Coil Ø mm 20
• Frequency Response Hz 50 - 25k
• Woofer Magnet Size B x T x H mm 78.5 x 32 x 17
• Tweeter Magnet Size B x H mm 19.7 x 3
• Weight per Speaker kg 1
• Woofer Magnet High-Density Ferrite
• Tweeter Magnet Neodymium
• Cone Polypropylene with UV Inhibitors
• Xmech mm ±6.65

Electro-Acoustic Specifications

• D mm 125
• Re Ohm 3.5
• Fs Hz 65
• Le mH 0.53
• Vas l 8.8
• Mms g 14
• Cms mm/N 0.4
• Bl T*m 5.2
• Qts 0.7
• Qes 0.75
• Qms 11.5
• Spl dB 89

Physical Specifications

• A 172.2 mm
• B 128 mm
• C 95.6 mm
• D 69 mm
• F 26.6 mm

Frequency Response

Features

• Designed and tested for real-world application environments (UV, salt spray, vibrations, splash water, temperature shock, dust).
• 1.4-inch neodymium magnet tweeter with a PEI material dome combined with a front plate and acoustic lens optimized for best off-axis radiation and highest sound pressure levels.
• Sonically transparent tone-on-tone stainless steel tweeter grille providing efficient high-frequency transmission, an attractive appearance, and rock-solid protection.
• Long-throw 25 mm voice coil woofer finely tuned for infinite baffle applications with polypropylene cone with UV inhibitors and molded Santoprene surround.
• Aramid fiber spider with silicone-insulated lead wires ensuring durability and consistent performance over time.
• FEM-optimized high-excursion moving parts driven by a massive magnetic assembly encapsulated in a marine-grade polymer injection-molded basket.
• Sealed built-in crossover with resettable solid-state tweeter protection circuit.
• Gold-plated corrosion-resistant terminals.