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Old 4th April 2014, 09:59 AM   #1
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Default Hum from X250 amp itself

X250 recently develop hum problem, from the amp itself, not from the speakers. It only happens if running for more than 2 hr. If turn on, but in idle, nothing happens. Thanks for any advice.
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Old 4th April 2014, 06:24 PM   #2
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Has the transformer become loose over time, perhaps?
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Old 4th April 2014, 06:26 PM   #3
Zen Mod is offline Zen Mod  Serbia
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DC in mains ?
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Old 4th April 2014, 06:54 PM   #4
impuls is offline impuls  Yugoslavia
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Connect transformer for a higher mains voltage
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