Helix Ci3 W130-S3 5.25" midbass speakers
Ci3 W130-S3
Helix 5.25" midbass speakers
Features
- 5.25” / 130 mm performance midbass which combines high efficiency with outstanding sound quality
- 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
Technical data
| Power handling RMS / max. | P | 90 / 135 Watts |
| Impedance | Z | 3 Ω |
| DC resistance | Re | 3.1 Ω |
| Frequency response | 80 Hz - 4,000 Hz | |
| Resonance frequency | Fs | 89 Hz |
| Mechanical Q factor | Qms | 3.11 |
| Electrical Q factor | Qes | 0.97 |
| Total Q factor | Qts | 0.74 |
| Compliance | Cms | 350 µm/N |
| Equivalent air volume | Vas | 4.6 L |
| Force factor | B*I | 4.0 Tm |
| Sensitivity | SPL | 91 dB @ 2.83 V / 1m 87 dB @ 1W / 1m |
| Cone area | Sd | 98 cm² |
| Moving mass | Mms | 9.1 g |
| Cone material | Paper with Cenosphere coating | |
| Mechanical resistance | Rms | 1.65 kg/s |
| Voice coil diameter | ø | 25 mm |
| Voice coil winding height | 10.5 mm | |
| Max. linear excursion | Xmax | +/- 3.2 mm |
| Outer diameter | ø | 130 mm / 5.12" |
| Installation diameter | ø | 116.5 mm / 4.59" |
| Installation depth | 55.4 mm / 2.18" | |
| Features | ProConnect terminal |