M1261 - LF Drivers

M1261 - LF Drivers

Product description:

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:

  • 12” nominal diameter;
  • 1200 W AES program power;
  • 95 dB 1W/1m sensitivity;
  • 4” copper voice coil;
  • 6.7 kg weight.

Specifications
Nominal diameter, inches (mm) 12(300)
Nominal impedance, Ohm 4/8
Rated power (AES), W 600
Frequency range, Hz 40-1500
Sensitivity (1W / 1m), dB 95
Minimum impedance, Ohm 7@180Hz
Bl product, Tm 19,2
Voice coil inductance, mH (1kHz) 1,66
Moving mass Mms, g 102
Voice coil
Diameter, inches (mm) 4(100)
Winding material copper
Former material glass fiber
Winding depth, mm 21
Magnetic system
Magnetic gap depth, mm 8
Flux density, T 1,05
Thiele-Small parameters
Fs, Hz 47
Vas, l 48
Qts 0,43
Qes 0,48
Qms 4,2
Re, Оhm 5,9
Sd, сm2 552
Xmax, mm 8,5
n, % 1,0
Mounting information
Overall diameter, mm 318
Baffle cutout diameter, mm 286
Bolt hole diameter, mm 7
Bolt circle diameter, mm 302,5
Height, mm 142
Net weight, kg 6,7