| 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-L402008C-1W | 40*20 | 7.8 | 8 | 650 | 20 | 1.0 / 2.0 | 84 ± 3 | Metal | Cloth |
*Tested at 1m 1W 0.8K 1K 1.2K 1.5K average
