| SD-150 | |
| SD-150PH | |
| SD-150-1 | |
| SD-152B | |
| SD-152BH | |
| SD-153B | |
| SD-153BH | |
| SD-153H | |
| SD-155H | |
| SD-157B | |
| SD-157B-2 | |
| SD-158B | |
| SD-158BH | |
| SD-158B-2 | |
| BDR-4P | |
| SD-150B | |
| SB01-5B | |
| SB01-6B | |
|
SD-155H |
 |
 |
 |
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Magnet |
Nd-Fe-BF Ferrite Magnet |
Impedance |
150 ± 20% Ω at 1KHz |
Sensitivity |
98 ± 2dB S.P.L.60mv at 1KHZ 0dB 2 x 10-5Pa |
MF intensity axial |
≥ -19 dB at 1KHz 0dB 1 A/M |
MF intensity radial |
≥ -22 dB at 1KHz 0dB 1 A/M |