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Clicking noise on speaker when changing volume
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<blockquote data-quote="ludo" data-source="post: 63174" data-attributes="member: 691"><p>Guessing here:</p><p></p><p>I believe those amps use a lot of relays for volume switching. Like in a DA converter one only needs very few relays to switch comparatively very many steps of volume level. Each step of volume level is achieved by a certain combination of some relays. But if one of those relays is not working right, a whole lot of those steps are going to be incorrect. Hence the clicking on one speaker. Do you notice any left/right imbalance at any point?</p><p></p><p>I'm also wondering if a slight offset voltage could affect such a volume control in the way you describe. Then there would not be a L/R imbalance, only clicking.</p><p></p><p>Depending on what type of relay is used, how the amp is put together etc it may be a simple bad connection on the board, failing to control one relay, or it may be a minor nightmare involving a microcontroller, or it might just be a leaky cap causing some offset.</p><p></p><p>If it is still under warranty, that would be good news.</p></blockquote><p></p>
[QUOTE="ludo, post: 63174, member: 691"] Guessing here: I believe those amps use a lot of relays for volume switching. Like in a DA converter one only needs very few relays to switch comparatively very many steps of volume level. Each step of volume level is achieved by a certain combination of some relays. But if one of those relays is not working right, a whole lot of those steps are going to be incorrect. Hence the clicking on one speaker. Do you notice any left/right imbalance at any point? I'm also wondering if a slight offset voltage could affect such a volume control in the way you describe. Then there would not be a L/R imbalance, only clicking. Depending on what type of relay is used, how the amp is put together etc it may be a simple bad connection on the board, failing to control one relay, or it may be a minor nightmare involving a microcontroller, or it might just be a leaky cap causing some offset. If it is still under warranty, that would be good news. [/QUOTE]
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Audio and Video Talk
General Discussion
Clicking noise on speaker when changing volume
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