PowerBass XL-1240
4Ω
2x4ΩSubwoofer
Nominal diameter | 12″ / 305 mm |
Resonance | 33 Hz |
Q factor | 0.57 |
Sensitivity | 87.4 dB |
Linear excursion | ± 8.5 mm |
Program Power | 800 W |
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 87.4dB
- Frequency response 33 - 450Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 33Hz
- Mechanical quality factor QMS 3.73
- Electrical quality factor QES 0.64
- Total quality factor QTS 0.57
Large signal parameters
- Maximum linear excursion xmax 8.5mm
- Air volume displaced at xmax VD 469cm³
- Power handling P 400W
- Program power Pmax 800W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.5Ω
- Inductance (1kHz, estimated) LE 2.39mH
- VC Diameter 51mm
Magnet
- Force factor Bl 14.8N/A
- Motor constant Bl/√RE 7.92N/√W
- Weight 5.27kg
Diaphragm
- Effective diameter 265mm
- Effective area SD 552cm²
- Moving mass MMS 172g
- Moving mass (without air load) MMD 163g
- Material Non Pressed Paper
Suspensions
- Stiffness KMS 7.83N/mm
- Compliance CMS 128µm/N
- Equivalent volume to the compliance VAS 55.2L
- Mechanical resistance RMS 9.56N·s/m
Dimensions
- Nominal diameter 12″
- 305mm
- Baffle cutout diameter 281mm
- Mounting depth 145mm
- Volume occupied by the driver (estimated) 2.4L
Export this driver to a simulation software:
Closed Box Simulator·





