| 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-L402808C-2W | 40*28.3 | 11.5 | 8 | 450 | 5 | 2.0 / 3.0 | 82 ± 3 | Plastic | Cloth+paper |
*Tested at 1m 1W 0.6K 0.8K 1K 1.2KHz average
