8FW50P1 LF Drivers 8 inchs

Notes

- 2 INCH COPPER VOICE COIL

- 93.8 dB/SPL SENSITIVITY

- 400 WATT PROGRAM POWER HANDING

- FEM OPTIMIZED MOTOR AND SUSPENSIONS

- OPTIMIZED COOLING SYSTEM

- RESONANCE FREE AND HEAVY DUTY BASKET DESIGN

GENERAL SPECIFICATIONS

Nominal diameter	210(8) mm (in.)
Nominal impedance	8 Ω
Minimum impedance	6.4 Ω
Program power (1)	400 W
AES Power rating(2)	200 W
Sensitivity (3)	93.8 dB
Frequency range	66~4500 Hz
Voice coil diameter	50(2) mm (in.)
Chassis material	Steel
Magnet material	Ferrite
Magnet dimensions (ODxIDxh)	140X60X20 mm
Coil material	SV
Former material	Glass Fiber
Xmax(4)	2.5 mm
Xmech(5)	6.5 mm
Gap height	8 mm
Voice coil Winding height	9 mm

SMALL SIGNAL PARAMETERS

DC resistance(Re)	5.6 Ω
Resonance frequency(Fs)	66 Hz
Moving mass(Mms)	30 g
Compliance(Cms)	0.18 mm/N
Force factor(BL)	15.4 N/A
Mechanical Q-factor(Qms)	6.18
Electrical Q-factor(Qes)	0.46
Total Q-factor(Qts)	0.43
Equivalent air volume(Vas)	16 I
Voice coil Inductance(Le)	0.25 mH
Diaphragm area(Sd)	240 cm²
Reference efficiency(Eta O)	1.2 %

SHIPPING INFORMATION

Net weight	3.2 Kg
Multipack size (1) (W x D x H)	255 x 255 x 260 mm
Multipack weight	7.2 Kg

OTHERS

(1)Program power is defined as 3 dB greater than AES Power.

(2) Tested for two hours using a continuous, band-limited pink noise signal as per AES 2-1984 Rev. 2003. Loudspeaker tested in free air.

(3) From T/S parameters, measured with LMS DA LPM module.

(4) The Xmax is calculated as: (Hvc - Hg)/2+ Hg/4. Hvc is the voice coil height and Hg the gap height.

(5) The Xmech is calculated as: (Hvc - Hg)/2 +(Hg-2). Hvc is the voice coil height and Hg the gap height.

(6) Thiele-Small parameters are measured after preconditioning: a) at 20°C- 22°C, 50% humidity for 2 hours; b) by LMS LSI measurement.

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