iPod Hi-Fi: Troubleshooting sound quality issues

Resolution

1. Decrease the volume of either that device, iPod Hi-Fi or both. Hearing a buzzing sound when a device is connected to the audio input port may be caused by a volume setting that is too high.
2. Try a different song from a different source (different CD, different artist).
3. Disconnect the iPod or the audio device and verify the sound quality using headphones.
4. Set the iPod’s EQ setting in the Settings menu to Off (select Settings > EQ > Off). If using a different audio device, verify its EQ or tone settings are set to normal, flat, or off. See the documentation that came with the device for more information.
5. The acoustics in a room may be a factor. Try moving iPod Hi-Fi to a different location in that room or try a different room.
6. Verify that the iPod Hi-Fi Tone Control setting is set to Normal, if a supported iPod is available (select Speakers > Tone Control > Normal). Note: Depending on acoustics in a room and the type of music playing, you may get better results by selecting Treble Boost or Bass Boost instead of Normal.
7. If running off batteries, connect the iPod Hi-Fi to AC power.
8. If playback if from a device connected to the audio input port, try connecting with a different cable or a different device, if available.
9. Reset the iPod Hi-Fi by removing the AC cord and all six batteries, waiting five seconds, and then connecting power.
10. Remove the speaker grille to determine if this is causing the sound quality to not be optimal.
11. If the issue appears to be too much bass, use the iPod EQ setting for Bass Reducer (select Settings > EQ > Bass Reducer).
12. If the issue continues, please schedule a service appointment with either an Apple Retail Store or an Apple Authorized Service Provider.