Harman Kardon AVR 3550HD
| Brand | Harman Kardon |
| Model | AVR 3550HD |
| Amplified channels | |
| Processing channels | |
| Subwoofer outputs | |
| Power per channel, 8 Ω (W) | |
| Power rated from (Hz) | |
| Power rated to (Hz) | |
| Power rated at THD (%) | |
| Power rated with channels driven | |
| HDMI inputs | |
| HDMI outputs | |
| 8K video | |
| Dolby Atmos | |
| DTS:X | |
| Zones | |
| Room correction | |
| Room correction system | |
| Phono input | |
| Wi-Fi | |
| Bluetooth | |
| AirPlay 2 | |
| Height (mm) | 165 |
| Width (mm) | 440 |
| Depth (mm) | 382 |
| Weight (kg) | 14.3 |