Various devices can plug into an audio interface, including:
1. Microphones: XLR or USB microphones can be connected to an audio interface to record high-quality audio.
2. Instruments: You can plug in musical instruments like guitars, keyboards, and other line-level devices through ¼-inch or XLR cables.
3. Synthesizers: You can connect analog and digital synthesizers to an audio interface to record and manipulate their sounds.
4. DJ equipment: Mixers, CDJs, and turntables can be connected to an audio interface to record and produce DJ sets or mixes.
5. Headphones: Most audio interfaces come with at least one headphone output for monitoring your recordings or mixes.
6. Speakers: You can connect powered speakers to the main outputs of an audio interface to listen to your recordings or mixes through a proper sound