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Poor sound quality from product | SoundLink® wireless music system
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.
If there is too much bass, see Too much bass or too little treble from product.
Determine if the issue is only occurring with a USB-to-Bluetooth audio adapter connected to a computer.
If the static, crackling, or distortion occurs every 30 seconds (or intermittently) and it only happens when using USB Bluetooth audio adapter connected to a computer, try another USB port on the computer and be sure the computer's operating system is up-to-date with all service packs installed.
Reset your product.
Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more info, see Resetting your product.
Try a different app.
If the issue only occurs with a particular app, it is likely related to the app or app settings.
Reboot the Bluetooth® device.
Electronics, such as cell phones, tablets or computers, might need to be reset on occasion to correct minor issues. This is typically done by shutting down the device, then powering it on again.
Check the EQ settings on your Bluetooth® device.
The EQ settings of your Bluetooth device can affect sound. On the device, try setting the EQ to "off" or "flat" and disabling any other sound playback adjustments (i.e. loudness, compression, reverb, etc.). These settings are commonly found in the device's audio settings or in the settings of the app being used to play audio.
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.
Check for sources of interference.
Electronics can pick up interference from other electronics connected to the same power circuit or connected within close proximity. Try disconnecting the power cord from any such nearby electronics (i.e. laptop/phone charger, TV, cable box, seasonal lights, microwave, etc.). If the issue is resolved, try connecting the device or your product to a different power circuit or farther away.
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