DS18 EXL-TR12.4D
2x4Ω
Subwoofer
| Nominal diameter | 12″ / 319 mm |
| Resonance | 45 Hz |
| Q factor | 1.03 |
| Sensitivity | 84.1 dB |
| Linear excursion | ± 17.5 mm |
| Program Power | 3000 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 84.1dB
- Frequency response 10 - 500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 45Hz
- Mechanical quality factor QMS 5.84
- Electrical quality factor QES 1.25
- Total quality factor QTS 1.03
Large signal parameters
- Maximum linear excursion (one way) xmax 17.5mm
- Air volume displaced at xmax VD 929cm³
- Power handling P 1500W
- Program power Pmax 3000W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 7.6Ω
- Inductance (1kHz, in series) LE 6.03mH
- VC Diameter 76.5mm
- Winding material SV
- Former material Black Aluminum
Magnet
- Force factor (in series) Bl 25.7N/A
- Motor constant Bl/√RE 9.32N/√W
- Diameter 191mm
- Weight 4.819kg
- Material Ferrite
Diaphragm
- Effective diameter 260mm
- Effective area SD 531cm²
- Moving mass MMS 386g
- Moving mass (without air load) MMD 377g
- Material Non-Pressed Paper + Epoxy Coating
Suspensions
- Stiffness KMS 32.4N/mm
- Compliance CMS 30.9µm/N
- Equivalent volume to the compliance VAS 12.4L
- Mechanical resistance RMS 18.7N·s/m
- Surround material Foam
Dimensions
- Nominal diameter 12″
- 319mm
- Overall diameter 319mm
- Baffle cutout diameter 282mm
- Overall depth 230mm
- Flange thickness 37mm
- Mounting depth 193mm
- Volume occupied by the driver 3.2L
- Frame material Aluminium
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