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Old 2nd September 2006, 08:34 PM   #1
elaar is offline elaar  United Kingdom
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Default Cyrus 1 amplifier problem


I have a Cyrus one amplifier that over the years has developed a huge hum, can anyone suggest any possible reasons for this? I was thinking perhaps a ground problem, but what are the best methods of testing for this?

Many thanks,
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Old 2nd September 2006, 10:04 PM   #2
Zen Mod is offline Zen Mod  Serbia
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be more specific
hum with volume on min?
in both channels equally?
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Old 28th September 2006, 10:56 PM   #3
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Given the age of these units I would certainly suspect the Electrolytics.
I'm about to recap my Cyrus Two and PSX. It sounds OK but I'm definitely stretching things expecting them to be good after 11+ years.
Since you did not reply to Zen's post does this mean that you have fixed the problem?

If so I would like to hear how (especially since I own a few Ones and Twos).

If not already fixed then you should definitely provide more details since there are some people around here who have serviced these amps in a professional capacity.
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