ALPINE R2-W8D4
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 8″ / 200 mm |
| Resonance | 43 Hz |
| Q factor | 0.53 |
| Sensitivity | 83.6 dB |
| Linear excursion | ± 12 mm |
| Program power | 700 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 83.6dB
- Frequency response 30 - 200Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 43Hz
- Mechanical quality factor QMS 7.08
- Electrical quality factor QES 0.58
- Total quality factor QTS 0.53
Large signal parameters
- Maximum linear excursion (one way) xmax 12mm
- Maximum excursion before damage xlim 52mm
- Air volume displaced at xmax VD 241cm³
- Power handling P 350W
- Program power Pmax 700W
- Peak power Ppeak 1000W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 7.2Ω
- Inductance (1kHz, in series, estimated) LE 2.82mH
- VC Diameter 40mm
Magnet
- Force factor (in series) Bl 15.8N/A
- Motor constant Bl/√RE 5.89N/√W
- Diameter 137mm
- Weight 1.59kg
Diaphragm
- Effective diameter 160mm
- Effective area SD 201cm²
- Moving mass (including air load) MMS 74.9g
- Moving mass MMD 73.3g
Suspensions
- Stiffness KMS 5.46N/mm
- Compliance CMS 183µm/N
- Equivalent volume to the compliance VAS 10.5L
- Mechanical resistance RMS 2.86N·s/m
- Surround material HAMR
Dimensions
- Nominal diameter 8″
- 200mm
- Overall diameter 194mm
- Baffle cutout diameter 176mm
- Overall depth 138mm
- Flange thickness 22mm
- Mounting depth 116mm
- Volume occupied by the driver (estimated) 1.2L
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Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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