8NDF75C1 Line Array Speakers 8 inches

Notes

-3  INCH  COPPER  VOICE  COIL 
 
-97.3 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

-DUAL GAP MOTOS  LINEARIZE  INDUCTANCE


-IDEAL FOR TWO-WAYS AND LINE ARRAY APPLICATION

GENERAL SPECIFICATIONS

Nominal diameter 213(8) mm (in.)
Nominal impedance 8 Ω
Minimum impedance 7.2 Ω
Program power (1) 400 W
AES Power rating(2) 800 W
Sensitivity (3) 97.3 dB
Frequency range 64~3500 Hz
Voice coil diameter 75(3) mm (in.)
Chassis material Aluminium
Magnet material Neodymium
Magnet dimensions (ODxIDxh) 74X15X10 mm
Coil material ALR
Former material Glass Fiber
Xmax(4) 5.5 mm
Xmech(5) 11 mm
Gap height 10X2 mm
Voice coil Winding height 36 mm

SMALL SIGNAL PARAMETERS

DC resistance(Re) 5.8 Ω
Resonance frequency(Fs) 63.7 Hz
Moving mass(Mms) 31 g
Compliance(Cms) 0.20 mm/N
Force factor(BL) 21.9 N/A
Mechanical Q-factor(Qms) 5.0
Electrical Q-factor(Qes) 0.18
Total Q-factor(Qts) 0.17
Equivalent air volume(Vas) 16 I
Voice coil Inductance(Le) 2.2 mH
Diaphragm area(Sd) 240 cm2
Reference efficiency(Eta O) 2.6 %

SHIPPING INFORMATION

Net weight 2.3 Kg
Multipack size (1) (W x D x H) 220X220X158 mm
Multipack weight 2.7 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