Hum or buzz in the speakers is usually caused by something external to the speakers which is coupling noise into the speaker system (either through the AC lines, cordless phone, wireless router, or directly from the source input). A common reason is that the entire system is set up such that a "ground loop" results. Basically, a ground loop occurs when the AC power grounds and the system signal grounds are not at the same electrical potential. Refer to our online Setup Guides for a list of things to try.
Articles in this section
- Can I drill holes in my Audioengine speakers and mount them to a wall?
- How do I connect bare speaker wire to my speakers?
- Do the A2+s have an auto-sleep, idle, or auto-power-off function? Can I leave them on all the time?
- Can I use the A2+ with my iPad or iPhone via USB to bypass the internal DAC and get better sound?
- Audio and video aren't in sync when using Bluetooth. This wasn't happening before, what gives?
- What are the differences between A2+ the original A2?
- Why isn't the A2+ available in the bamboo finish?
- When using the USB input of the A2+, what bit rate and bit depth should I set my system to?
- Can I use the A2+ USB input with tablets or smartphones like Samsung Galaxy or Microsoft Surface?
- Since the A2+ already has a built in DAC, does that mean I cannot use another one?