Beyma 12BR70
Subwoofer
12″ / 300 mm
Nominal diameter
31 Hz
Resonance
0.5
Q factor
90 dB
Sensitivity
± 8 mm
Linear excursion
250 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 90.4
- dB
- Frequency response
- 35 - 4000
- Hz
- Resonance frequency (free air)
- fS
- 31.0
- Hz
- Mechanical quality factor
- QMS
- 4.40
- Electrical quality factor
- QES
- 0.56
- Total quality factor
- QTS
- 0.50
- Maximum linear excursion
- xmax
- 8.0
- mm
- Maximum excursion before damage
- xlim
- 26.0
- mm
- Air volume displaced at xmax
- VD
- 432
- cm³
- Power handling
- P
- 125
- W
- Program power
- Pmax
- 250
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.6
- Ω
- Inductance (1kHz)
- LE
- 0.8
- mH
- VC Diameter
- 51
- mm
- Winding height
- HVC
- 19
- mm
- Force factor
- Bl
- 12.1
- N/A
- Motor constant
- Bl/√RE
- 5.11
- N/√W
- Air gap height
- HAG
- 7
- mm
- Effective diameter
- 262
- mm
- Effective area
- SD
- 540
- cm²
- Moving mass
- MMS
- 74
- g
- Moving mass (without air load)
- MMD
- 65.2
- g
- Stiffness
- KMS
- 2.9
- N/mm
- Compliance
- CMS
- 345
- µm/N
- Equivalent volume to the compliance
- VAS
- 142
- L
- Mechanical resistance
- RMS
- 3.3
- N·s/m
- Nominal diameter
- 12
- ″
- 300
- mm
- Overall diameter
- 312
- mm
- Baffle cutout diameter
- 278
- mm
- Overall depth
- 134
- mm
- Volume occupied by the driver (estimated)
- 1.8
- L
- Net weight
- 3.6
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
Closed Box Simulator·
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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