PowerBass XL-844D
2x4Ω
4ΩSubwoofer
| Nominal diameter | 8″ / 203 mm |
| Resonance | 44.6 Hz |
| Q factor | 0.64 |
| Sensitivity | 81.2 dB |
| Linear excursion | ± 5 mm |
| Program power | 400 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 81.2dB
- Frequency response 43 - 400Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 44.6Hz
- Mechanical quality factor QMS 5.38
- Electrical quality factor QES 0.72
- Total quality factor QTS 0.64
Large signal parameters
- Maximum linear excursion (one way) xmax 5mm
- Air volume displaced at xmax VD 88cm³
- Power handling P 200W
- Program power Pmax 400W
- Peak power Ppeak 400W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 6.3Ω
- Inductance (1kHz, in series, estimated) LE 2.83mH
- VC Diameter 50.8mm
- Winding material EIW wire
- Former material BASV
Magnet
- Force factor (in series) Bl 15N/A
- Motor constant Bl/√RE 5.95N/√W
Diaphragm
- Effective diameter 150mm
- Effective area SD 177cm²
- Moving mass (including air load) MMS 91.2g
- Moving mass MMD 89.4g
- Material 4-layer, Non-pressed Paper, DDC Finish
Suspensions
- Stiffness KMS 7.14N/mm
- Compliance CMS 140µm/N
- Equivalent volume to the compliance VAS 6.17L
- Mechanical resistance RMS 4.75N·s/m
- Surround material Santoprene
Dimensions
- Nominal diameter 8″
- 203mm
- Mounting depth 111mm
- Volume occupied by the driver 1.06L
- Frame material Composite (polycarbonate)
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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