A4 Mk3
|
| Channels | 4 |
| Number of microphones | 0 |
| Output | 20 watts per channel |
| Surround function | No |
| - | Basic sound amplifier |
|
| Channels | 6 |
| Number of microphones | max. 1 (only in vehicles with speech control system) |
| Output | 3 x 20 watts, 3 x 40 watts |
| Surround function | No |
| - | Standard sound amplifier |
|
| Channels | 10 |
| Number of microphones | at least 1 (due to background noise compensation), max. 2 (in vehicles with speech control system) |
| Output | 4/5 x 25 watts, 4 x 43 watts, 1 x 100 watts |
| Surround function | Yes |
| - | Premium sound amplifier |