Scanspeak 18WU/4747T00 Woofer - Illuminator Range
18WU/4747T00
£206.44
Scanspeak 18WU/4747T00 Illuminator 18cm 4 Ohm woofer. A radical rethink in drive unit design.
This 18cm 4 Ohm woofer is the culmination of many years research at Scanspeak R and D, Videbaek, Denmark and brings together a host of advancements.
Featuring a rigid aluminium alloy cone, copper capped pole piece & huge linear excursion, this audiophile quality driver operates as a pure piston. The unique airflow optimised open chassis and underhung Neodymium SD-3 magnet system define new standards in terms of minimal compression & reflection.
Delivering highly accurate bass reproduction with great authority, extension and texture, we believe this is possibly the finest 18cm dedicated woofer available.
Available in 4 and 8 ohms.
Key Features:
- Under-Hung Neodymium Motor Design
- Black Anodised Aluminium Alloy Cone
- Exceptionally Long Linear Excursion
- Patented Symmetrical Drive (SD-3)
- Low-loss linear suspension
This woofer is 4 Ohms ; the 8 Ohm version is here : 18WU/8747T00
Basic parameters:
| Resonant frequency (fs) | 32 Hz | Nominal impedance (Zn) | 4 Ω |
| Mechanical Q factor (Qms) | 3.42 | DC resistance (Re) | 3.2 Ω |
| Electrical Q factor (Qes) | 0.30 | RMS power handling | 80 W |
| Total Q factor (Qts) | 0.28 | Sensitivity (2.83V/1m) | 88.1 dB |
| Equivalent volume (Vas) | 48.3L | Chassis diameter | 184 mm |
Here's the full datasheet:
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