PowerBass XL-840
2x4Ω
4Ω
Subwoofer
| Nominal diameter | 8″ / 203 mm |
| Resonance | 43.3 Hz |
| Q factor | 0.46 |
| Sensitivity | 83.8 dB |
| Linear excursion | ± 6 mm |
| Program power | 400 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 83.8dB
- Frequency response 43 - 500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 43.3Hz
- Mechanical quality factor QMS 3.97
- Electrical quality factor QES 0.51
- Total quality factor QTS 0.46
Large signal parameters
- Maximum linear excursion (one way) xmax 6mm
- Air volume displaced at xmax VD 127cm³
- Power handling P 200W
- Program power Pmax 400W
- Peak power Ppeak 400W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.5Ω
- Inductance (1kHz, estimated) LE 1.54mH
- VC Diameter 50.8mm
- Winding material pure EIW wire
- Former material Vented BASV
Magnet
- Force factor Bl 12.8N/A
- Motor constant Bl/√RE 6.86N/√W
- Weight 3.29kg
- Material single stack magnet
Diaphragm
- Effective diameter 164mm
- Effective area SD 211cm²
- Moving mass (including air load) MMS 88.9g
- Moving mass MMD 86.7g
- Material Proprietary 4-layer, Non-pressed Paper, DDC Finish Cone
Suspensions
- Stiffness KMS 6.58N/mm
- Compliance CMS 152µm/N
- Equivalent volume to the compliance VAS 9.64L
- Mechanical resistance RMS 6.09N·s/m
- Surround material Santoprene
Dimensions
- Nominal diameter 8″
- 203mm
- Baffle cutout diameter 181mm
- Mounting depth 111mm
- Volume occupied by the driver (estimated) 0.85L
- Frame material cast polycarbonate
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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