DB Drive PTW12D2
2x2Ω
2x4ΩSubwoofer
| Nominal diameter | 12″ / 305 mm |
| Resonance | 34.4 Hz |
| Q factor | 0.47 |
| Sensitivity | 87.2 dB |
| Linear excursion | ± 17.5 mm |
| Program Power | 1750 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 87.2dB
Thiele & Small parameters
- Resonance frequency (free air) fS 34.4Hz
- Mechanical quality factor QMS 6.42
- Electrical quality factor QES 0.51
- Total quality factor QTS 0.47
Large signal parameters
- Maximum linear excursion (one way) xmax 17.5mm
- Air volume displaced at xmax VD 929cm³
- Power handling P 900W
- Program power Pmax 1750W
Voice Coil
- Nominal impedance Z 2 x 2Ω
- DC resistance (in series) RE 4.0Ω
- Inductance (1kHz, in series) LE 2.59mH
Magnet
- Force factor (in series) Bl 18.8N/A
- Motor constant Bl/√RE 9.4N/√W
Diaphragm
- Effective diameter 260mm
- Effective area SD 531cm²
- Moving mass MMS 208g
- Moving mass (without air load) MMD 200g
Suspensions
- Stiffness KMS 10N/mm
- Compliance CMS 100µm/N
- Equivalent volume to the compliance VAS 37.5L
- Mechanical resistance RMS 7N·s/m
Dimensions
- Nominal diameter 12″
- 305mm
- Volume occupied by the driver 3.7L
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
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Hornresp
QSpeakers
SpeakerSim
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