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HMX 7.7 S-LD-G
Technical Highlights
- 100W RMS, 4 ohm impedance, 200W peak, 45-25k Hz frequency.
- ASA plastic, polypropylene cone, Santoprene surround.
- Aramid fiber spider, silicone insulated connection cables, durable.
- More technical details
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HMX 7.7 S-LD-G by Hertz
The Hertz HMX 7.7 S-LD-G is a 7.7-inch coaxial speaker with a rated power of 100 W RMS and a peak power of 200 W. The housing is made of special ASA plastic and features a paintable sport grille as well as a polypropylene cone with UV inhibitors and Santoprene surround. The technical specifications include an aramid fiber spider, silicone-insulated connection cables, and the Hi-end Led Coax system. With an impedance of 4 Ohms, the speaker covers a frequency range of 45 Hz to 25 kHz. The construction has a mounting depth of 113 mm and a total weight of 1.66 kg. A high-density ferrite magnet drives the woofer, while a neodymium magnet is used in the tweeter.
- 8-inch (20 cm) coaxial speaker
- Rated power: 100 W RMS
- Peak power: 200 W Max
- Impedance: 4 Ohms
- Material: ASA plastic with paintable sport grille
- Cone: Polypropylene with UV inhibitors and Santoprene surround
- Hi-end Led Coax
- Aramid fiber spider
- Silicone-insulated connection cables
- Tweeter dome material: PEI
- 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: 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 liters
- Mass of the 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

