Audio System R 12 FA EVO
4Ω
Subwoofer
| Nominal diameter | 12″ / 317 mm |
| Resonance | 37 Hz |
| Q factor | 1.02 |
| Sensitivity | 84.8 dB |
| Linear excursion | ± 13 mm |
| Program Power | 575 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 84.8dB
- Frequency response 22 - 120Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 37Hz
- Mechanical quality factor QMS 9.85
- Electrical quality factor QES 1.14
- Total quality factor QTS 1.02
Large signal parameters
- Maximum linear excursion (one way) xmax 13mm
- Air volume displaced at xmax VD 647cm³
- Power handling P 375W
- Program power Pmax 575W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.3Ω
- Inductance (1kHz, estimated) LE 2.77mH
- VC Diameter 76mm
- Former material Aluminum
Magnet
- Force factor Bl 12N/A
- Motor constant Bl/√RE 6.61N/√W
- Diameter 140mm
Diaphragm
- Effective diameter 252mm
- Effective area SD 498cm²
- Moving mass MMS 235g
- Moving mass (without air load) MMD 227g
- Material KPC Paper
Suspensions
- Stiffness KMS 11.6N/mm
- Compliance CMS 86µm/N
- Equivalent volume to the compliance VAS 27L
- Mechanical resistance RMS 5.55N·s/m
- Surround material Elasthan
- Spider material PPTA Connex
Dimensions
- Nominal diameter 12″
- 317mm
- Overall diameter 317mm
- Baffle cutout diameter 280mm
- Overall depth 160mm
- Flange thickness 16mm
- Mounting depth 144mm
- Volume occupied by the driver (estimated) 3L
- Net weight 6.3kg
- Frame material Steel
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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