15FTN75TM Coaxials 15 inches

Notes

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

GENERAL SPECIFICATIONS

Nominal diameter 398~421(15) mm (in.)
Nominal impedance 8 Ω
Minimum impedance 6.2 Ω
Program power (1) 900 W
AES Power rating(2) 450 W
Sensitivity (3) 97.8 dB
Frequency range 45~2500 Hz
Voice coil diameter 75(3) mm (in.)
Chassis material Aluminium
Magnet material Ferrite
Magnet dimensions (ODxIDxh) 200X100X20 mm
Coil material CCAW
Former material Glass Fiber
Xmax(4) 6.5 mm
Xmech(5) 12 mm
Gap height 10 mm
Voice coil Winding height 18 mm
Diaphragm material Titanium
Program power(1) 160 W
AES Power rating(2) 80 W
Sensitivity(3) 109 dB
Frequency range 800~17000 Hz
Voice coil diameter 51(2) mm (in.)
Coil material ALR

SMALL SIGNAL PARAMETERS

DC resistance(Re) 5.3 Ω
Resonance frequency(Fs) 45 Hz
Moving mass(Mms) 72 g
Compliance(Cms) 0.17 mm/N
Force factor(BL) 16.3 N/A
Mechanical Q-factor(Qms) 7.07
Electrical Q-factor(Qes) 0.51
Total Q-factor(Qts) 0.47
Equivalent air volume(Vas) 205 I
Voice coil Inductance(Le) 0.39 mH
Diaphragm area(Sd) 924 cm2
Reference efficiency(Eta O) 3.5 %

SHIPPING INFORMATION

Net weight 9.2 Kg
Multipack size (1) (W x D x H) 410 x 410 x 228 mm
Multipack weight 10.1 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.