Harman Kardon RCD291
| Brand | Harman Kardon |
| Model | RCD291 |
| Format | |
| Heads | |
| Motors | |
| Dolby B | |
| Dolby C | |
| Dolby S | |
| Dolby HX Pro | |
| dbx | |
| DNR | |
| High Com | |
| Auto-reverse | |
| 4.76 cm/s (1⅞ ips) | |
| 2.38 cm/s (15/16 ips) | |
| 9.5 cm/s (3¾ ips) | |
| 19 cm/s (7½ ips) | |
| 38 cm/s (15 ips) | |
| 76 cm/s (30 ips) | |
| Largest reel (mm) | |
| Frequency response | 20 Hz – 21000 Hz +3 −3 dB |
| Wow and flutter (%) | 0.05 |
| Signal-to-noise ratio (dB) | 57 |
| Height (mm) | |
| Width (mm) | |
| Depth (mm) | |
| Weight (kg) |