M1805 - LF Drivers
Product description:
High power low distortion 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;
- inside-outside copper voice coil;
- ventilated voice coil gap;
- aluminum demodulation ring;
- glass fiber reinforced cone;
- double silicon spider.
Product specification:
- 18” nominal diameter;
- 2400 W AES program power;
- 96 dB 1W/1m sensitivity;
- 4” copper voice coil;
- 15.2 kg weight.
Specifications | |
---|---|
Nominal diameter, inches (mm) | 18(460) |
Nominal impedance, Ohm | 4/8 |
Rated power (AES), W | 1200 |
Frequency range, Hz | 30-500 |
Sensitivity (1W / 1m), dB | 96 |
Minimum impedance, Ohm | 7,2@140Hz |
Bl product, Tm | 30 |
Voice coil inductance, mH (1kHz) | 2,08 |
Moving mass Mms, g | 271 |
Voice coil | |
Diameter, inches (mm) | 4(100) |
Winding material | copper |
Former material | glass fiber |
Winding depth, mm | 29 |
Magnetic system | |
Magnetic gap depth, mm | 14 |
Flux density, T | 1,12 |
Thiele-Small parameters | |
Fs, Hz | 35,7 |
Vas, l | 159 |
Qts | 0,4 |
Qes | 0,41 |
Qms | 15,4 |
Re, Оhm | 6,1 |
Sd, сm2 | 1244 |
Xmax, mm | 11 |
n, % | 1,7 |
Mounting information | |
Overall diameter, mm | 465 |
Baffle cutout diameter, mm | 414 |
Bolt hole diameter, mm | 6,5 |
Bolt circle diameter, mm | 440 |
Height, mm | 212 |
Net weight, kg | 15,2 |