Posted August 15, 2026 at 12:31 GMT
Hi.
I have a pair of Beolab 4000s, Mk I with the power switch on the front. The speakers work and play very nicely, but one of the two gives a somewhat disturbing loudish high pop/click when it turns from on to standby. This seems to vary on how long the speaker has been powered on, and sometimes it behaves just fine and it's just the relay click as it should.
I haven't yet tried swapping the powerlink cables, but I presume these were new cables I used.
I was wondering if this is a known problem? Could it be something "as simple" as the stand-by power relay having bad contacts?
While these are Mk I, I have peeked under the tweeter that these have the later white foam inside and not the bad black stuff!
Location: Helsinki - Finland
"Bang & Olufsen - A Life Less Ordinary" // "It's not magic, it's the Bang & Olufsen link system" // "It takes more upon itself, asks less of you. And a natural consequence of this is the simple and striking design. The true harmony of form and function spells beauty in any language"