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Technical Highlights
- 75W RMS, 4 ohm impedance, 150W peak, 50-25k Hz frequency.
- UV-resistant polypropylene membrane, Santoprene rubber surround.
- Aramid centering, silicone insulated connecting wires, durable.
- More technical details
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HMX 6.5-TW (B-stock) by Hertz
The Hertz HMX 6.5-TW (B-stock) is a technically flawless marine coaxial speaker with a diameter of 6.5 inches (16.5 cm). The system has an RMS power handling of 75 watts and a peak power handling of 150 watts at an impedance of 4 ohms. The construction includes a UV-resistant polypropylene diaphragm with a Santoprene rubber surround, as well as a 1.4-inch neodymium tweeter with a PEI dome. A high-density ferrite magnet drives the woofer, while an aramid fiber spider with silicone-insulated connection wires supports mechanical stability. The speaker is protected from environmental influences by a stainless steel tweeter grille and a marine-grade polymer basket.
- 6.5 inches (16.5 cm) coaxial speaker
- Power handling: 75 watts RMS
- Power handling: 150 watts peak
- Impedance: 4 ohms
- Polypropylene diaphragm with UV inhibitors
- Santoprene rubber surround
- 1.4-inch neodymium tweeter with PEI dome
- High-density ferrite woofer magnet
- Aramid fiber spider with silicone-insulated connection wires
- Sound-transparent stainless steel tweeter grille
- Injection-molded marine-grade polymer basket
- Gold-plated corrosion-resistant terminals
- Sealed crossover with solid-state tweeter protection
- Frequency response: 50 Hz - 25,000 Hz
- Mounting depth: 95.6 mm
- Overall diameter (A): 172.2 mm
- Mounting diameter (B): 128 mm
- Overall depth (C): 95.6 mm
- Mounting depth (D): 69 mm
- Protrusion (F): 26.6 mm
- Tweeter diaphragm: 36 mm
- Woofer voice coil diameter: 25 mm
- Tweeter voice coil diameter: 20 mm
- Woofer magnet size: 78.5 x 32 x 17 mm
- Tweeter magnet size: 19.7 x 3 mm
- Weight per speaker: 1 kg
- Xmech: ±6.65 mm
- Fs: 65 Hz
- Vas: 8.8 liters
- Mms: 14 g
- Spl: 89 dB
- Re: 3.5 ohms
- Qts: 0.7

