| Model | AP-M81A |
| Type | Midrange |
| Size | 8" |
| Frequency response | 110-10000 Hz |
| Package quantity | Pair |
| Voice coil size | 2.00" |
| Cone | Paper |
| Magnet | Ferrite |
| Voice coil wire | CCAW |
| Surround | Cloth |
| RMS Power | 300 W |
| MAX Power | 600 W |
| Frame | Steel |
| Impedance | 4 Ohm |
| SPL | 97.00 dB |
| Fs | 105.00 Hz |
| Qts | 0.40 |
| BL | 9.06 |
| Vas | 11.30 L |
| Mounting depth | 3.52" (89.5 mm) |
| Cut-out dimension | 7.32" (186.0 mm) |
| Gross weight | 16.36 lb (7.42 kg) |