18SW115-8TW BASS/MID RANGE DRIVER
KEY FEATURES:
- 96dB 1W/1m sensitivity
- 1800W AES power handling
- 33Hz-1kHz frequency response
- 116mm (4.5in) copper voice coil
- Double silicon spider for superior excursion control and linearity
- Heavy-duty cast aluminum chassis for increased rigidity
- Suitable for high SPL subwoofer designs
Description
NOTES:
1、Two hours test according to AES 2-1984 Rev. 2003. Power calculated on rated minimum impedance.
2、Maximum power is defined as 3dB greater than Nominal power.
3、Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.
4、Xmax= [(winding depth – magnetic gap depth)/2] + (magnetic gap depth/3).
5、Thiele-Small parameters are measured after a preconditioning test.
6、Power test made with continuous pink noise signal within the frequency range.
General Specifications
| Part Number | 18SW115-8TW |
| Nominal Diameter | 462mm (18in) |
| Nominal Impedance | 8Ω |
| Minimum Impedance | 7.2Ω |
| AES Power Handling1 | 1800W |
| Maximum Power Handling2 | 3600W |
| （1W/1m）Sensitivity（1W/1m）3 | 96dB |
| Resonance Frequency | 33Hz |
| Frequency Range | 33Hz-1kHz |
| Voice Coil Diameter | 116mm |
| Winding Material | Copper |
| Former Material | Glass Fiber |
| Winding Depth | 33mm |
| Magnetic Gap Depth | 15mm |
| Xmax4 | 14mm |
| Flux Density | 1.0T |
| Basket Material | Cast Aluminum |
| Magnet Material | Ferrite |
| Suspension Material | Double Fabric |
| Surround Material | W-Roll Cloth-sealed |
| Cone Material | Curvilinear Paper |
| Net Weight | 17.5kg |
Frequency Response Curve
Impedance Curve
TS Parameters5
| Model Number | 18SW115-8TW |
| Fs | 33Hz |
| Re | 5.4Ω |
| Le | 2.9mH |
| Mms | 282g |
| Mmd | 259g |
| Cms | 0.08mm/N |
| BL | 28.7Tm |
| Qms | 8.9 |
| Qes | 0.38 |
| Qts | 0.36 |
| Vas | 172L |
| Ref. Efficiency | 1.7% |
| Sd | 1225cm2 |
| EBP | 87Hz |
Mechanical Drawing
Additional information
| Series | SW SERIES |
|---|---|
| Diameter | 18in |
| Nominal Impedance | 8Ω |
| AES Power Handling | 1800W |
| Voice Coil Diameter | 116mm |
| Maximum Excursion | 14mm |
| Magnet Material | Ferrite |
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