Beyma 4FR40Nd
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Широкополосный динамик Beyma 4FR40Nd 4"40Вт 8Ом 88дБ
TECHNICAL SPECIFICATIONS
| Nominal diameter | 100 mm 4 in |
| Nominal impedance | 8 Ohm |
| Minimum impedance | 7.2 ohm |
| Power capacity | 40 W AES |
| Program power | 80 W |
| Sensitivity | 88 dB 1 W @ 1 m @ ZN |
| Frequency range | 100-20000 Hz |
| Voice coil diameter | 20.3 mm 0.8 in |
| BL factor | 4.7 N/A |
| Moving mass | 0.0045 kg |
| Winding length | 7.7 mm |
| Air gap height | 4 mm |
THIELE SMALL PARAMETERS
| Fs | 94 Hz |
| Re | 6.4 ohm |
| Qms | 10.8 |
| Qes | 0.78 |
| Qts | 0.73 |
| Vas | 2.7 l |
| Cms | 627 µm / N |
| Rms | 0.25 kg/s |
| Efficiency % | 0.28 |
| Sd | 0.0055 m² |
| Xmax | 3 mm |
| Vd | 11 cm³ |
| Le @1 kHz | 0.2 mH |
CONSTRUCTIVE DETAILS
| Net weight | 0.28 kg 0.62 lb |
| Total weight | 0.45 kg 0.99 lb |
| Magnet | Neodymium |