Rockford Fosgate R2D2-12
2x2Ω
2x4ΩSubwoofer
12″ / 305 mm
Nominal diameter
35 Hz
Resonance
0.58
Q factor
89 dB
Sensitivity
± 6.5 mm
Linear excursion
500 W
Program Power
- Amazon.com
- $$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 88.9
- dB
- Resonance frequency (free air)
- fS
- 34.6
- Hz
- Mechanical quality factor
- QMS
- 8.29
- Electrical quality factor
- QES
- 0.62
- Total quality factor
- QTS
- 0.58
- 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 2
- Ω
- DC resistance (in series)
- RE
- 3.8
- Ω
- Inductance (1kHz, in series)
- LE
- 3.9
- mH
- VC Diameter
- 51
- mm
- Force factor (in series)
- Bl
- 13.2
- N/A
- Motor constant
- Bl/√RE
- 6.77
- N/√W
- Weight
- 1.35
- kg
- Effective diameter
- 262
- mm
- Effective area
- SD
- 539
- cm²
- Moving mass
- MMS
- 131.4
- g
- Moving mass (without air load)
- MMD
- 122.8
- g
- Stiffness
- KMS
- 6.21
- N/mm
- Compliance
- CMS
- 161
- µm/N
- Equivalent volume to the compliance
- VAS
- 66.4
- L
- Mechanical resistance
- RMS
- 3.45
- 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