M1503 - LF Drivers

M1503 - LF Drivers

Product description:

Extended low frequency transducer for bass reflex and band pass system. 

Main features:

  • aluminum die-cast frame with improved voice coil ventilation ; 
  • removable self-centering ferrite magnet system with ventilated gap; 
  • inside-outside copper voice coil;
  • double silicon spider.

Product specification:

  • 15” nominal diameter;
  • 2000 W AES program power;
  • 96 dB 1W/1m sensitivity;
  • 4” copper voice coil;
  • 12 kg weight.

Specifications
Nominal diameter, inches (mm) 15(380)
Nominal impedance, Ohm 4/8
Rated power (AES), W 1000
Frequency range, Hz 35-500
Sensitivity (1W / 1m), dB 96
Minimum impedance, Ohm 6,9@135Hz
Bl product, Tm 25,8
Voice coil inductance, mH (1kHz) 2,4
Moving mass Mms, g 151
Voice coil
Diameter, inches (mm) 4(99)
Winding material copper
Former material glass fiber
Winding depth, mm 25
Magnetic system
Magnetic gap depth, mm 12
Flux density, T 1,08
Thiele-Small parameters
Fs, Hz 38,2
Vas, l 91
Qts 0,29
Qes 0,31
Qms 5,6
Re, Оhm 5,64
Sd, сm2 755
Xmax, mm 9,5
n, % 1,58
Mounting information
Overall diameter, mm 398
Baffle cutout diameter, mm 342
Bolt hole diameter, mm 7
Bolt circle diameter, mm 371
Height, mm 172
Net weight, kg 12