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Scan Speak, Illuminator 18WU/4741T-00
$366.00
In stock
Product Description
Scan-Speak Illuminator 7″ Paper Cone Woofer 18WU/4741T-00
- Under hung voice coil
- Neodymium magnet
- Exceptionally long linear excursion
- paper cone
The Illuminator woofers are based on compact under-hung motor systems with large neodymium ring magnets. The patent pending motor offers a very long linear excursion together with a very high force factor. The top plate is shaped to “guide” the backside airflow around the motor and with the very open cast aluminum chassis design the driver is virtually free from compression.
| Nominal Impedance | Zn | 4 | ohm |
| DC Resistance | Re | 3.9 | ohm |
| Voice Coil Inductance | Le | 0.3 | mH |
| TS Parameters | |||
| Resonance Frequency | fs | 26 | Hz |
| Mechanical Q factor | QMS | 3.18 | |
| Electrical Q factor | QES | 0.28 | |
| Total Q factor | Qts | 0.25 | |
| Force Factor | Bl | 6.4 | Tm |
| Mechanical Resistance | Rms | 0.91 | Kg/s |
| Moving Mass | Mms | 17.4 | g |
| Suspension Compliance | Cms | 2.08 | mm/N |
| Effective cone diameter | D | 14 | cm |
| Effective Piston Area | sd | 153.9 | cm^2 |
| Equivalent Volume | Vas | 69.9 | ltrs |
| Sensitivity | 2.83V/1m | 92 | dB |
| Power Handling | |||
| 100h RMS noise test | IEC | 100 | W |
| Max Linear SPL @ power | rms | 105 | dB/W |
| Voice Coil and Magnet Parameters | |||
| Voice Coil Diameter | 42 | mm | |
| Voice Coil Height | 8 | mm | |
| Voice Coil Layers | 4 | ||
| Height of the Gap | 26 | mm | |
| Linear Excursion +/- | 9 | mm | |
| Max mech. excursion +/- | 16 | mm | |
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