•If the hum is heard from within the USP-1 and not through the speakers, this may also be caused by interference on the AC or DC lines. The power transformers may turn this interference into an audible noise. Internal hum can be made worse by a shelf or cabinet resonating, so try moving the USP-1 to another shelf.
•Try moving your components further away from the TV, especially if you ever notice the screen has changed color in the area closest to the component.
•If you have very high efficiency speakers, these may tend to reveal noises which other speakers do not.
Problems with the whole A/V System
If you are having more complex problems in your overall home entertainment system (not just with the USP-1 preamplifier/processor), please contact Emotiva directly for professional installation assistance. These professionals have years of experience with a wide range of home entertainment and products and can offer you assistance in troubleshooting and rectifying problems.
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