Tang Band W4-657SH
8Ω
Full-range
Nominal diameter | 4″ / 102 mm |
Resonance | 65 Hz |
Q factor | 0.32 |
Sensitivity | 88.8 dB |
Linear excursion | ± 3.3 mm |
Program Power | 40 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 88.8dB
- Frequency response 65 - 15000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 65Hz
- Mechanical quality factor QMS 5.79
- Electrical quality factor QES 0.34
- Total quality factor QTS 0.32
Large signal parameters
- Maximum linear excursion xmax 3.3mm
- Air volume displaced at xmax VD 19cm³
- Power handling P 20W
- Program power Pmax 40W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 6.0Ω
- Inductance (1kHz) LE 0.111mH
- VC Diameter 25.4mm
Magnet
- Force factor Bl 5.77N/A
- Motor constant Bl/√RE 2.36N/√W
- Air gap height HAG 6mm
- Material Ferrite
Diaphragm
- Effective diameter 85mm
- Effective area SD 57cm²
- Moving mass MMS 4.61g
- Moving mass (without air load) MMD 4.3g
- Material Aluminium / Magnesium
Suspensions
- Stiffness KMS 0.771N/mm
- Compliance CMS 1297µm/N
- Equivalent volume to the compliance VAS 5.98L
- Mechanical resistance RMS 0.33N·s/m
- Surround material Rubber
Dimensions
- Nominal diameter 4″
- 102mm
- Volume occupied by the driver (estimated) 0.14L
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