| APM-TEC | Diameter (mm) | Height (mm) | Impedance (Ω) | Fundamental Frequency (Hz) | Frequency range F0 – (Hz) | Power rating (Rated / Max) (W) | *Sound Output (dB) | Frame Material | Diaphragm |
| APM-L321808M-1W | 32*18 | .4,6 | 8 | 750 | 20 | 1.0 / 2.0 | 80 ± 3 | Plastic | Mylar |
*Tested at 1m 1W 1K 1.2K 1.5K, 2.0KHz average
