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 |
