- 6 INCH COPPER VOICE COIL 

- 95.1 dB/SPL SENSITIVITY 

- 4000 WATT PROGRAM POWER HANDING 

- FEM OPTIMIZED MOTOR AND SUSPENSIONS 

- 50mm PEAK TO PEAK MAXIMUM EXCURSION  

- OPTIMIZED COOLING SYSTEM  

- DOUBLE SPIDER   

- RESONANCE FREE AND HEAVY DUTY BASKET DESIGN  

- TRIPLE ROLL SURROUND

Nominal diameter	460(18) mm (in.)
Nominal impedance	4 Ω
Minimum impedance	4.6 Ω
Program power (1)	4000 W
AES Power rating(2)	2000 W
Sensitivity (3)	95.1 dB
Frequency range	35~1000 Hz
Voice coil diameter	151(6) mm (in.)
Chassis material	Aluminium
Magnet material	Ferrite
Magnet dimensions (ODxIDxh)	300 x 170 x 30 mm
Coil material	SV
Former material	Glass Fiber
Xmax(4)	16.5 mm
Xmech(5)	25 mm
Gap height	14 mm
Voice coil Winding height	40 mm

DC resistance(Re)	3.6 Ω
Resonance frequency(Fs)	34.7 Hz
Moving mass(Mms)	365 g
Compliance(Cms)	0.06 mm/N
Force factor(BL)	26.3 N/A
Mechanical Q-factor(Qms)	6.8
Electrical Q-factor(Qes)	0.44
Total Q-factor(Qts)	0.42
Equivalent air volume(Vas)	159 I
Voice coil Inductance(Le)	3.27 mH
Diaphragm area(Sd)	1325 cm2
Reference efficiency(Eta O)	2.1 %

Net weight	24 Kg
Multipack size (1) (W x D x H)	485X485X270 mm
Multipack weight	25.8 Kg

(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.