Product overview
6.5 inch / 165 mm performance midbass with 3 Ω impedance, FlexMount165 technology and Cenosphere coated paper cone
Key features
- 6.5” / 165 mm performance midbass which combines outstanding sound quality with versatile physical integration options
- High efficiency and 3 Ohms technology for maximized power output of the amplifier
- Unique Cenosphere coated paper cone for precise and detailed sound reproduction
- High-tech polymer composite basket reinforced with glass beads for enormous rigidity and minimized ringing
- Specially shaped rubber surround for high linear cone excursion
- Polyurethane dustcap for optimized frequency response in the upper midrange area
- 1” / 25 mm voice coil ensures high power handling
- Automotive grade ProConnect connection terminal allows the use of conventional speaker cables or a fast, secure and fail-safe connection via optionally available WireKits
- Powerful magnet system for high efficiency and optimum impulse response
- Designed for the optionally available car-specific FlexMount165 adaptors which allow an acoustically optimized and professional integration in the original mounting location of the vehicle
- Designed for optionally available, car-specific WireKits which allow a non-destructive integration
Technical specifications
| Power handling RMS / max. | P / | 100 / 150 Watts |
|---|---|
| Impedance | 3 Ω |
| DC resistance | 3.0 Ω |
| Frequency response | 60 Hz – 3,500 Hz |
| Resonance frequency | 70 Hz |
| Mechanical Q factor | 4.17 |
| Electrical Q factor | 1.05 |
| Total Q factor | 0.84 |
| Compliance | 454 µm/N |
| Equivalent air volume | 11.2 L |
| Force factor | B*I | 4.0 Tm |
| Sensitivity | 92 dB @ 2.83 V / 1m / 88 dB @ 1W / 1m |
| Cone area | 133 cm² |
| Moving mass | 11.3 g |
| Cone material | Paper with Cenosphere coating |
| Mechanical resistance | 1.18 kg/s |
| Voice coil diameter | 25 mm |
| Voice coil winding height | 10.5 mm |
| Max. linear excursion | +/- 3.2 mm |
| Outer diameter | 165 mm / 6.5" |
| Installation diameter | 142 mm / 5.59" |
| Installation depth | 60.7 mm / 2.39" |
| Features | ProConnect terminal, / FlexMount165 |
What you are ordering
The exact HELIX model shown above, APEX catalogue SKU CI21600. Review the listed inputs, outputs, impedance and system requirements before ordering.
Technical information verified against the official Audiotec Fischer product page.
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