Illuminator 18WU/8741T00 7" Woofer

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 a

€369.95
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Highlights

  • Under-Hung Neodymium Motor Design
  • Patented Sandwich Paper Cone
  • Low-Loss linear suspension
  • Patented Symmetrical Drive (SD-3)
  • Exceptionally Long Linear Excursion

 

Product details

Scan-Speak Illuminator 18WU/8741T00 7" Woofer

 

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.

SI18WU8741T00

Data sheet

Impedance
8 Ohm
Driver type
Midwoofer
Sensitivity
85.4 dB 2.83V/1m
Resonance frequency (fs)
31 Hz
DC resistance (Re)
5.9 ohms
Mechanical Q (Qms)
3.51
Electrical Q at Fs (Qes)
0.37
Total Q factor (Qts)
0.33
Speaker diameter
7"
Power handling
150 W
Voice coil inductance (L)
0.41 mH
Effective mechanical mass incl air load (mms)
18g
Effective piston radiating area (Sd)
154 cm2
Force factor (BL)
7.5 Tm
Equivalent volume of compliance (Vas)
1.71 ft.³