Audio System R 12 FLAT EVO 2
4Ω
Shallow Subwoofer
| Nominal diameter | 12″ / 319 mm |
| Resonance | 34.2 Hz |
| Q factor | 0.52 |
| Sensitivity | 87.5 dB |
| Linear excursion | ± 7.5 mm |
| Program Power | 575 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 87.5dB
- Frequency response 35 - 100Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 34.2Hz
- Mechanical quality factor QMS 6.59
- Electrical quality factor QES 0.56
- Total quality factor QTS 0.52
Large signal parameters
- Maximum linear excursion (one way) xmax 7.5mm
- Air volume displaced at xmax VD 383cm³
- Power handling P 400W
- Program power Pmax 575W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.4Ω
- Inductance (1kHz, estimated) LE 2.23mH
- VC Diameter 51mm
- Former material Aluminum
Magnet
- Force factor Bl 14.5N/A
- Motor constant Bl/√RE 7.86N/√W
- Diameter 145mm
Diaphragm
- Effective diameter 255mm
- Effective area SD 510cm²
- Moving mass MMS 162g
- Moving mass (without air load) MMD 154g
- Material KPC Paper
Suspensions
- Stiffness KMS 7.46N/mm
- Compliance CMS 134µm/N
- Equivalent volume to the compliance VAS 45.6L
- Mechanical resistance RMS 5.28N·s/m
- Surround material Elasthan
- Spider material PPTA Connex
Dimensions
- Nominal diameter 12″
- 319mm
- Overall diameter 319mm
- Baffle cutout diameter 279mm
- Overall depth 110mm
- Flange thickness 17mm
- Mounting depth 93mm
- Volume occupied by the driver (estimated) 1.9L
- Net weight 4.4kg
- Frame material Steel
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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