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Modding the Altec Lansing MX 5021 for dummies!!
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<blockquote data-quote="sergey" data-source="post: 923227" data-attributes="member: 29545"><p>Thank you! I've checked indeed - all seems to be correct.</p><p></p><p>Let me explain more about that hiss: </p><p>as I posted above sub plays music without problem but produces that noise regardless volume level. You can hear it from 30 - 40cm from sub in silence. Maybe I'm paranoidal about that?</p><p></p><p>People, can you listen to your subs for a light hissing noise and tell me about your experience?</p><p></p><p>My friend, a radio-engineer told me looking at sub's board photo (unfortunately, we have no electric scheme) that he couldn't see any low-pass filter at the board so that hiss can be because of it's absence.</p><p></p><p>As I also posted a faint hiss from speakers is also remains as it's been before the mod which is also very sad. </p><p></p><p>The only good news - the new toroidal transformer makes no buzz.:clap:</p></blockquote><p></p>
[QUOTE="sergey, post: 923227, member: 29545"] Thank you! I've checked indeed - all seems to be correct. Let me explain more about that hiss: as I posted above sub plays music without problem but produces that noise regardless volume level. You can hear it from 30 - 40cm from sub in silence. Maybe I'm paranoidal about that? People, can you listen to your subs for a light hissing noise and tell me about your experience? My friend, a radio-engineer told me looking at sub's board photo (unfortunately, we have no electric scheme) that he couldn't see any low-pass filter at the board so that hiss can be because of it's absence. As I also posted a faint hiss from speakers is also remains as it's been before the mod which is also very sad. The only good news - the new toroidal transformer makes no buzz.:clap: [/QUOTE]
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Modding the Altec Lansing MX 5021 for dummies!!
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