Plug your microphone or instrument into an Input A connector. If it is a stereo source, plug the other plug into the Input B connector.
Connect the Fostex MR-8 to a recorder using the stereo output jack. It is located to the right of the Input A and B connections, which are on the top right of the unit.
Adjust effects, distortion, delay and trim using the four white buttons located under the stereo output jack.
Press the record button to begin recording. It is located on the bottom right of the device, next to the play, fast-forward and rewind keys.
Press the "stop" button to stop recording.