SB Acoustics SB12MNRX25-4
4Ω
Mid-range
| Nominal diameter | 4″ / 102 mm |
| Resonance | 58 Hz |
| Q factor | 0.37 |
| Sensitivity | 85.8 dB |
| Linear excursion | ± 2.3 mm |
| Program Power | 100 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 85.8dB
Thiele & Small parameters
- Resonance frequency (free air) fS 58Hz
- Mechanical quality factor QMS 3.60
- Electrical quality factor QES 0.42
- Total quality factor QTS 0.37
Large signal parameters
- Maximum linear excursion xmax 2.3mm
- Air volume displaced at xmax VD 11cm³
- Power handling P 50W
- Program power Pmax 100W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.2Ω
- Inductance (1kHz) LE 0.14mH
- VC Diameter 25.4mm
- Winding height HVC 9.5mm
Magnet
- Flux density B 0.9T
- Force factor Bl 3.7N/A
- Motor constant Bl/√RE 2.07N/√W
- Air gap height HAG 5mm
- Weight 0.4kg
Diaphragm
- Effective diameter 80mm
- Effective area SD 50cm²
- Moving mass MMS 4.9g
- Moving mass (without air load) MMD 4.6g
Suspensions
- Stiffness KMS 0.645N/mm
- Compliance CMS 1550µm/N
- Equivalent volume to the compliance VAS 5.5L
- Mechanical resistance RMS 0.5N·s/m
Dimensions
- Nominal diameter 4″
- 102mm
- Volume occupied by the driver (estimated) 0.33L
- Net weight 0.85kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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