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18WU/4741 T00
Illuminator 6.5" Midwoofer

The Illuminator woofers are in every aspect unusual designs with the open construction, the extremely long linear excursion and patented under-hung SD-3 (Symmetrical Drive) neodymium motor system, which due to copper caps and its construction ensures very low distortion, adding the unique patented cones, low-loss linear suspension the result is: “The Very Best Money Can Buy”!

Key features:

Under-Hung Neodymium Motor Design
Black Anodized Alu. Cone
Low-Loss linear suspension
Patented Symmetrical Drive (SD-3)
Exceptionally Long Linear Excursion
Patented Design

Short data

Usage as	Bass-Midrange
Power Handling	70 Watt
Impedance	8 Ohm

Frequency from	35 Hz
Max. Frequency	2.5 kHz

Chassis-data

Overall dimensions	184 mm
Baffle cutout	157 mm
Depth (Total)	104.8 mm
Front material	Aluminium diecast
Frame Material	Aluminium diecast
Membrane Type	Cone
Membrane Surround	Rubber
Membrane Material	Paper
Dustcap Material	Paper

Voice coil Ø	42 mm
Voice coil height	8 mm
Magnet Ø	90 mm

Thiele-Small-Parameter

Resonance fs	fs: 35 Hz
Mechanical Q	Qms: 3.78
Electrical Q	Qes: 0.44
Total Q	Qts: 0.39
Equivalent Air-Volumen	Vas: 37.1 Liter
DC-Resistance	Re: 5.8 Ohm
Coil Inductance	Le: 0.6 mH

Mech. Compliance	Cms: 1.1 mm/N
Moving Mass	Mms: 18.5 g
mech. Resistance	Rms: 1.1 kg/s-¹
Max. Excursion +/-	Xmax: 16 mm
BL Product	Bl: 7.3 N/A
Membrane Ø	Md: 140
Membrane Area	Sd: 154 cm²
Sound pressure	dB: 85.5 SPL

Frequency and Impedance

Technical Drawing

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Product informations (EN)

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