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Beyma 4FR40Nd - 4" 80W 8 Ohm
- 4" full-range compact neodymium loudspeaker
- 80 W program power
- Extended response and low distortion
- Paper cone and SantopreneTM surround
- Pressed steel basket
- Neodymium magnet
- Ideal for beam-steering application (columns), portable
- array and compact applications
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 Ä©m / N
- Rms 0.25 kg/s
- Efficiency % 0.28
- Sd 0.0055 mē
- Xmax 3 mm
- Vd 11 cmģ
- 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
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