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Low audio | QuietComfort® 2 Acoustic Noise Cancelling™ headphones (2005)
Determine if the problem is specifically related to bass performance.
If there is too little bass, see Too little bass or too much treble from product.
If there is too much bass, see Too much bass or too little treble from product.
Check the volume level on the source.
Its possible the volume is too low or muted. Increase the volume gradually
Try a different app.
If the issue only occurs with a particular app, it is likely related to the app or app settings.
Try playing different types of media.
Different media types might produce different quality sound. For example, Podcasts, music stored locally on your phone, MP3s, streaming music services (Spotify, Pandora), videos on your device or stored in the cloud, etc. can all vary in quality. Try different media to determine if the issue is specific to certain media.
Try connecting a different audio device.
If available, connect another audio device using the same cables and connections to determine if the issue is related to the first device or its settings.
If connected, bypass any adapters or extension cables.
If your product connects to the device using an extension cable or adapter, disconnect the extension cable or adapter to determine if the issue is related to it.
On the audio cable, try changing the Hi/Lo switch position.
The Hi/Lo switch on the audio cable connector is useful if audio is too loud or too quiet in the headset, even after adjusting volume. Be sure it is set properly. For more info, see Setting the audio attenuation Hi/Lo switch.
Check the condition of the headphone cable.
If the plug or any part of the cable is damaged, replace the headphone cable.
Be sure the headphone openings are clean and free of debris.
Check for blockages in the headphone mesh grille and headphone opening. Excessive debris can result in low audio, poor sound quality or missing audio channels.
Plug in a different pair of headphones.
Connect another pair of headphones to the audio device to determine if the issue is with the device or its settings.
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