Description
Ci5 M50FM-S3
2″ wideband 3 Ohm speaker
Features
- 2” / 50 mm advanced wideband speaker with exceptional sound performance and versatile physical integration options
- High efficiency and 3 Ohms technology for maximised power output of the amplifier
- Silicon coated paper cone for excellent impulse response and unmatched frequency response
- Maximised cone area and an aluminium dust-cap directly coupled to the voice coil, achieving a wide frequency response of 300 – 20,000 Hz
- High-tech polymer composite basket reinforced with glass beads for enormous rigidity and minimised ringing
- Special rubber surround and optimised magnet system for large linear cone excursion
- Dedicated surround manufacturing allows for a smaller installation diameter and a maximised effective cone area compared to typical 50 mm speakers
- Powerful push-pull neodymium magnet system for highest efficiency and extremely low distortion
- Universal mounting ring with grille included in delivery
Technical data
| Power handling RMS / Max. | P |
70 / 100 Watts |
| Impedance | Z | 3 Ω |
| DC resistance | Re | 3.1 Ω |
| Frequency response | 300 Hz – 20,000 Hz | |
| Resonance frequency | Fs | 240 Hz |
| Mechanical Q factor | Qms | 3.09 |
| Electrical Q factor | Qes | 0.80 |
| Total Q factor | Qts | 0.68 |
| Compliance | Cms |
300 µm/N |
| Equivalent air volume | Vas | 0.16 L |
| Force factor | B*I |
2.8 Tm |
| Sensitivity | SPL | 89 dB @ 2.83 V / 1m 85 dB @ 1W / 1m |
| Cone area | Sd | 19.6 cm² |
| Moving mass | Mms | 1.43 g |
| Cone material | Silicon coated paper cone | |
| Mechanical resistance | Rms | 0.71 kg/s |
| Voice coil diameter | ø | 20 mm |
| Voice coil winding height | 7 mm | |
| Max. linear excursion | Xlin | +/- 2.5 mm |
| Max. mechanical excursion | Xmax | +/- 3.5 mm |
| Outer diameter | ø | 59.8 mm / 2.34″ |
| Outer diameter with universal mounting ring | ø | 70.0 mm / 2.75″ |
| Installation diameter | ø | 50.9 mm / 2.00″ |
| Installation depth | 25.2 mm / 0.99″ | |
| Features | Powerful push-pull neodymium magnet system, |










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