M1551 - LF Drivers

M1551 - LF Drivers

Product description:

High output low distortion mid bass transducer for 2-way speakers. 

Main features: 

  • aluminum die-cast octagonal frame with small installation dimensions; 
  • removable self-centering ferrite magnet system; 
  • inside-outside copper clad aluminum voice coil;
  • ventilated voice coil gap;
  • aluminum demodulation ring.

Product specification:

  • 15” nominal diameter;
  • 1000 W AES program power;
  • 98 dB 1W/1m sensitivity;
  • 3” CCAW voice coil;
  • 6,6 kg weight.

Specifications
Nominal diameter, inches (mm) 15(380)
Nominal impedance, Ohm 8/4
Rated power (AES), W 500
Frequency range, Hz 50-2500
Sensitivity (1W / 1m), dB 98
Minimum impedance, Ohm 7,2@220Hz
Bl product, Tm 18,3
Voice coil inductance, mH (1kHz) 1
Moving mass Mms, g 95
Voice coil
Diameter, inches (mm) 3(76)
Winding material CCAW
Former material glass fiber
Winding depth, mm 19,2
Magnetic system
Magnetic gap depth, mm 10
Flux density, T 1,1
Thiele-Small parameters
Fs, Hz 44
Vas, l 146
Qts 0,43
Qes 0,455
Qms 7,5
Re, Оhm 5,8
Sd, сm2 876
Xmax, mm 7
n, % 2,6
Mounting information
Overall diameter, mm 422/390
Baffle cutout diameter, mm 354
Bolt hole diameter, mm 6/8
Bolt circle diameter, mm 398
Height, mm 164
Net weight, kg 6,6