Scan Speak Illuminator 15WU/8741T-00 5" Woofer 8 Ohms

Now Available!

Scan-Speak Illuminator 15W/8741T-00 5" Woofer

• Paper cone
• Cast frame
• Neodymium motor
• Underhung voice coil
• long excursion

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.

Electrical Data
Nominal Impedance	Zn	8	ohm
Minimum Impedance	Zmin	7.9	ohm
Maximum Impedance	Zo	70.3	ohm
DC Resistance	Re	5.9	ohm
Voice Coil Inductance	Le	0.41	mH
TS Parameters
Resonance Frequency	fs	35	Hz
Mechanical Q factor	QMS	3.37
Electrical Q factor	QES	0.28
Total Q factor	Qts	0.26
Force Factor	Bl	7.5	Tm
Mechanical Resistance	Rms	0.8	Kg/s
Moving Mass	Mms	12.3	g
Suspension Compliance	Cms	1.68	mm/N
Effective Piston Area	sd	92	cm^2
Equivalent Volume	Vas	20.1	ltrs
Sensitivity	2.83V/1m	83.4	dB

Power Handling
100h RMS noise test	IEC	80	W
Long-term Max Power	IEC 18.3	150	W
Short Term Max power	IEC 18.2	200	ohm
Voice Coil and Magnet Parameters
Voice Coil Diameter		42	mm
Voice Coil Height		8	mm
Voice Coil Layers		4
Height of the Gap		20	mm
Linear Excursion +/-		6	mm
Max mech. excursion +/-		12	mm
Diameter of Magnet		90	mm
Height of Magnet		4	mm
Weight of Magnet		.13	Kg

Suggested box sizes:
Sealed box of 0.15 cubic feet for an F3 of 115Hz
Vented box of 0.2 cubic feet with 1.5" diameter vent by 6" long for F3 of 60Hz
Extended bass shelf of 0.3 cubic feet with 1.5" diameter vent by 6" long for F3 of 56Hz.