| 85 | Electrical machinery and equipment and parts thereof; sound recording and reproducing apparatus, for recording and playback, television image and sound, and parts and accessories |
| 8518 | Microphones and stands therefor; loudspeakers, whether or not mounted in their enclosures; headphones and head phones, whether or not combined with a microphone, and sets consisting of a microphone and one or more speakers; electrical |
| 851840 | Electrical power amplifiers |
| 85184080 | Electrical audio amplifiers, other |
| 8518408009 | Other power audio amplifiers, other |