12NTF75TB Coaxials 12 inches

Notes

3 INCH WOOFER EDGEWOUND CCA VOICE COIL
 
3 INCH COMPRESSION ALUMINIUM VOICE COIL
 
97 dB/SPL SENSITIVITY
 
800 WATT PROGRAM POWER HANDING
 
FEM OPTIMIZED MOTOR AND SUSPENSIONS
 
OPTIMIZED COOLING SYSTEM
 
RESONANCE FREE AND HEAVY DUTY BASKET DESIGN

GENERAL SPECIFICATIONS

Nominal diameter 311(12) mm (in.)
Nominal impedance 8 Ω
Minimum impedance 6.1 Ω
Program power (1) 800 W
AES Power rating(2) 400 W
Sensitivity (3) 97 dB
Frequency range 60 ~ 3000 Hz
Voice coil diameter 75(3) mm (in.)
Chassis material Aluminium
Magnet material Neodymium
Magnet dimensions (ODxIDxh) 138 x 90 x 10 mm
Coil material CCAW
Former material Glass Fiber
Xmax(4) 7.5 mm
Xmech(5) 13 mm
Gap height 8 mm
Voice coil Wingding height 18 mm
Diaphragm material Titanium
Program power(1) 220 W
AES Power rating(2) 110 W
Sensitivity(3) 108 dB
Frequency range 500 ~ 18000 Hz
Voice coil diameter 72(3) mm (in.)
Coil material ALR

SMALL SIGNAL PARAMETERS

DC resistance(Re) 5.3 Ω
Resonance frequency(Fs) 60 Hz
Moving mass(Mms) 50 g
Compliance(Cms) 0.14 mm/N
Force factor(BL) 15.30 N/A
Mechanical Q-factor(Qms) 5.4
Electrical Q-factor(Qes) 0.45
Total Q-factor(Qts) 0.41
Equivalent air volume(Vas) 67 I
Voice coil Inductance(Le) 0.25 mH
Diaphragm area(Sd) 581 cm2
Reference efficiency(Eta O) 3.1 %

SHIPPING INFORMATION

Net weight 4.5 Kg
Multipack size (1) (W x D x H) 325 x 325 x 205 mm
Multipack weight 5.1 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.