Audio System R 08 FLAT EVO 2
4Ω
Shallow Subwoofer
| Nominal diameter | 8″ / 214 mm |
| Resonance | 56.4 Hz |
| Q factor | 0.59 |
| Sensitivity | 81.5 dB |
| Linear excursion | ± 5 mm |
| Program Power | 275 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 81.5dB
- Frequency response 35 - 120Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 56.4Hz
- Mechanical quality factor QMS 4.18
- Electrical quality factor QES 0.70
- Total quality factor QTS 0.59
Large signal parameters
- Maximum linear excursion (one way) xmax 5mm
- Air volume displaced at xmax VD 108cm³
- Power handling P 175W
- Program power Pmax 275W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.2Ω
- Inductance (1kHz, estimated) LE 1.52mH
- VC Diameter 38.6mm
- Former material Aluminum
Magnet
- Force factor Bl 9.89N/A
- Motor constant Bl/√RE 5.53N/√W
- Diameter 120mm
Diaphragm
- Effective diameter 165mm
- Effective area SD 215cm²
- Moving mass MMS 100g
- Moving mass (without air load) MMD 97.6g
- Material KPC Paper
Suspensions
- Stiffness KMS 7.58N/mm
- Compliance CMS 132µm/N
- Equivalent volume to the compliance VAS 7.63L
- Mechanical resistance RMS 8.48N·s/m
- Surround material Elasthan
- Spider material PPTA Connex
Dimensions
- Nominal diameter 8″
- 214mm
- Overall diameter 214mm
- Baffle cutout diameter 178mm
- Overall depth 79mm
- Flange thickness 15mm
- Mounting depth 64mm
- Volume occupied by the driver (estimated) 0.85L
- Net weight 2.7kg
- Frame material Steel
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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