This Illuminator 18cm 4 Ohm midwoofer is a highly advanced unit featuring some very forward thinking technology. The unique alloy chassis is open and has been optimised for maximum airflow with minimum reflection / sound disturbance; the underhung Neodymium magnet is outrigged from the chassis and the spider is completely open on both sides - these advancements give excellent sound characteristics with no compression. All of the Illuminator midwoofers have a prodigious, deep bass response.
Featuring a unique patented long fibre cone, copper capped pole piece & huge linear excursion, this audiophile drive unit is at the very pinnacle of sound quality and design.
Available in 4 and 8 Ohm impedance.
Under-Hung Neodymium Motor Design
Patented Sandwich Paper Cone
Low-loss linear suspension
Patented Symmetrical Drive (SD-3)
Exceptionally Long Linear Excursion
This woofer is 4 Ohms ; the 8 Ohm version is here : 18WU/8741T00
Resonant frequency (fs)
Nominal impedance (Zn)
Mechanical Q factor (Qms)
DC resistance (Re)
Electrical Q factor (Qes)
RMS power handling
Total Q factor (Qts)
Equivalent volume (Vas)
Here's the full datasheet:
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