-3  INCH  COPPER  VOICE  COIL 

-93.9 dB/SPL SENSITIVITY

-800  WATT  PROGRAM  POWER  HANDING

-FEM  OPTIMIZED  MOTOR  AND  SUSPENSIONS

-OPTIMIZED  COOLING  SYSTEM

-DOUBLE  SPIDE

-RESONANCE FREE AND HEAVY DUTY BASKET DESIGN

Nominal diameter	213(8) mm (in.)
Nominal impedance	8 Ω
Minimum impedance	6.9 Ω
Program power (1)	800 W
AES Power rating(2)	400 W
Sensitivity (3)	93.9 dB
Frequency range	72~3200 Hz
Voice coil diameter	75(3) mm (in.)
Chassis material	Aluminium
Magnet material	Ferrite
Magnet dimensions (ODxIDxh)	170x85x20 mm
Coil material	ALW
Former material	Glass Fiber
Xmax(4)	4.5 mm
Xmech(5)	10 mm
Gap height	10 mm
Voice coil Winding height	17 mm

DC resistance(Re)	5.2 Ω
Resonance frequency(Fs)	72.8 Hz
Moving mass(Mms)	31 g
Compliance(Cms)	0.14 mm/N
Force factor(BL)	16.1 N/A
Mechanical Q-factor(Qms)	7.4
Electrical Q-factor(Qes)	0.42
Total Q-factor(Qts)	0.40
Equivalent air volume(Vas)	11.8 I
Voice coil Inductance(Le)	5.0 mH
Diaphragm area(Sd)	240 cm2
Reference efficiency(Eta O)	2.0 %

Net weight	4.9 Kg
Multipack size (1) (W x D x H)	220x220x145 mm
Multipack weight	5.3 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