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Humming, buzzing or rattling noise heard from product | Wave® radio III
If you hear an unexpected noise from your product:
Try the following:
Be sure the rattling noise is not something on or near the system.
A loose item on or near the system may be vibrating when certain frequencies or volume levels are played. Secure any loose items or move the system or items to another location if the system sound is causing nearby items to rattle.
Disconnect the coaxial cable that comes from your wall to a device, then check if the issue stops.
Find the coaxial cable that is coming into your house, then isconnect it from the first device to which it connects. This is typically the twist-on connection to your cable or satellite box. If the noise stops when disconnected, purchasing a coaxial ground loop isolator should help. The coaxial cable will plug into the isolator, then the isolator will connect to the device.
Install replacement RCA cables that eliminate ground hum.
Disconnect the RCA cables between the external device and the Bose system. The hum or interference should disappear. If it does, an RCA ground loop isolator can be used to eliminate the hum. Connect the RCA ground loop isolator, replacing the original RCA cables.
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.
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.
Reset your product.
Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more information, see Resetting your product.
Try relocating the Wave system to another area and power outlet.
Other electronics can cause interference affecting your Wave system if they're on the same power circuit or nearby. Try moving the Wave system away from (or unplug the power to) such devices like chargers, old electronics, holiday lights, or microwaves. If that helps, plug the Wave system (or the device causing the problem) into a different power outlet, or move them farther apart.
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