M1808 - LF Drivers
Product description:
High power low distortion extended low frequency transducer for bass reflex and band pass system.
Main features:
- aluminum die-cast octagonal frame with small installation dimensions;
- removable self-centering ferrite magnet system;
- inside-outside copper voice coil;
- ventilated voice coil gap;
- double aluminum demodulation ring;
- glass fiber reinforced weather protected cone;
- double silicon spider.
Product specification:
- 18” nominal diameter;
- 3200 W AES program power;
- 96 dB 1W/1m sensitivity;
- 4.5” copper voice coil;
- 14.9 kg weight.
Specifications | |
---|---|
Nominal diameter, inches (mm) | 18(460) |
Nominal impedance, Ohm | 8 |
Rated power (AES), W | 1600 |
Frequency range, Hz | 35-1000 |
Sensitivity (1W / 1m), dB | 97 |
Minimum impedance, Ohm | 6,7@175Hz |
Bl product, Tm | 29,8 |
Voice coil inductance, mH (1kHz) | 1,27 |
Moving mass Mms, g | 274 |
Voice coil | |
Diameter, inches (mm) | 4,5(115) |
Winding material | copper |
Former material | glass fiber |
Winding depth, mm | 30 |
Magnetic system | |
Magnetic gap depth, mm | 11 |
Flux density, T | 1,1 |
Thiele-Small parameters | |
Fs, Hz | 34,5 |
Vas, l | 172 |
Qts | 0,34 |
Qes | 0,36 |
Qms | 5,2 |
Re, Оhm | 5,4 |
Sd, сm2 | 1250 |
Xmax, mm | 12,25 |
n, % | 1,9 |
Mounting information | |
Overall diameter, mm | 448/480 |
Baffle cutout diameter, mm | 424 |
Bolt hole diameter, mm | 7,5/9,5 |
Bolt circle diameter, mm | 450 |
Height, mm | 218 |
Net weight, kg | 14,9 |