Rockford Fosgate R2D4-12
2x2Ω
2x4Ω
Subwoofer
12″ / 305 mm
Nominal diameter
35 Hz
Resonance
0.6
Q factor
89 dB
Sensitivity
± 6.5 mm
Linear excursion
500 W
Program Power
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- Amazon.com
- $$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 88.5
- dB
- Resonance frequency (free air)
- fS
- 34.9
- Hz
- Mechanical quality factor
- QMS
- 7.33
- Electrical quality factor
- QES
- 0.66
- Total quality factor
- QTS
- 0.60
- Maximum linear excursion
- xmax
- 6.5
- mm
- Air volume displaced at xmax
- VD
- 350
- cm³
- Power handling
- P
- 250
- W
- Program power
- Pmax
- 500
- W
- Nominal impedance
- Z
- 2 x 4
- Ω
- DC resistance (in series)
- RE
- 7.2
- Ω
- Inductance (1kHz, in series)
- LE
- 3.9
- mH
- VC Diameter
- 51
- mm
- Force factor (in series)
- Bl
- 17.2
- N/A
- Motor constant
- Bl/√RE
- 6.42
- N/√W
- Weight
- 1.35
- kg
- Effective diameter
- 262
- mm
- Effective area
- SD
- 539
- cm²
- Moving mass
- MMS
- 124.5
- g
- Moving mass (without air load)
- MMD
- 115.9
- g
- Stiffness
- KMS
- 5.99
- N/mm
- Compliance
- CMS
- 167
- µm/N
- Equivalent volume to the compliance
- VAS
- 68.8
- L
- Mechanical resistance
- RMS
- 3.72
- N·s/m
- Nominal diameter
- 12
- ″
- 305
- mm
- Baffle cutout diameter
- 285
- mm
- Mounting depth
- 128
- mm
- Volume occupied by the driver
- 1.3
- L
Available on (affiliate link)
Specifications
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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