The volume on my 552 increase significantly with only small movements on the control knob. This started a few months ago. Music (especially hi-hat) become shrill and unbearable at 9 o’clock. I suspect it might be time for a visit to the dealer.
It’s odd for the behaviour of the ALPS pot to change in such a way. Have you tried doing some repeated turns of the knob up and down the full track range to see whether things improve (obviously don’t play anything when doing this!)?
I vaguely remember accidently resting on the remote and the volume moved to its maximum position…this was for a few seconds. Do you think that may had damaged the ALPS pot?
I did try what you suggested, but can’t say I noticed any difference. The 552 is near its 20th birthday, so I suspect she is in need of a full service…
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Unlikely. How old is the 552? I does sound like dirt or a short inside the pot
Its almost 20 years old.
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OK, time for a service that will take care of it.
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Blimy…you have had a good run…!!!
Yes, the whole setup has been super reliable apart from the CDS3 (mechanism). Bought the 552, 500 CDS3 in 2003/04 and 555ps 2006.
From Naim website:
How often should I service my Naim product? This is a question often asked, and the Service Department recommendations are as follows: for the Chrome Bumper (circa 1975 - 1989) and Olive (circa 1989 - 2000) range products, we recommend every 8 - 10 years and for the newer Black products (2000 - present), every 12 - 15 years.
Thanks.
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