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<blockquote data-quote="dB-r" data-source="post: 2910342" data-attributes="member: 574699">The PWM power supply in the amp could be running at a frequency close to your AM band, and since most people don&#039;t listen to AM, noone else would have noticed that the power supply in the amp has Radio Frequency emissions near the AM broadcast band.&nbsp;&nbsp; Try more/better grounding.&nbsp;&nbsp; Other than that you may have to just get a new amp.&nbsp; &nbsp; Maybe add some .01uf disc caps from the power rail + and - to ground inside the amp.&nbsp;&nbsp; Easy to do if you know what&#039;s what inside an amp.&nbsp;&nbsp; Would be a cheap fix, but if you can&#039;t do it yourself you may be out of luck.&nbsp;&nbsp; And it may not work anyway.&nbsp; &nbsp; The amp may already have similar caps in it, but isn&#039;t enough, or this fix may just not work on this amp.Before everyone else lectures you on listening to AM (what the hell do you listen to AM radio for?)&nbsp;&nbsp; I get that all the time.&nbsp;&nbsp; Talk radio isn&#039;t for everyone, some of us like it better than the same 12 songs all day long, and some of us listen to AM radio for sports too.</blockquote>

[QUOTE="dB-r, post: 2910342, member: 574699"] The PWM power supply in the amp could be running at a frequency close to your AM band, and since most people don't listen to AM, noone else would have noticed that the power supply in the amp has Radio Frequency emissions near the AM broadcast band. Try more/better grounding. Other than that you may have to just get a new amp. Maybe add some .01uf disc caps from the power rail + and - to ground inside the amp. Easy to do if you know what's what inside an amp. Would be a cheap fix, but if you can't do it yourself you may be out of luck. And it may not work anyway. The amp may already have similar caps in it, but isn't enough, or this fix may just not work on this amp. Before everyone else lectures you on listening to AM (what the hell do you listen to AM radio for?) I get that all the time. Talk radio isn't for everyone, some of us like it better than the same 12 songs all day long, and some of us listen to AM radio for sports too. [/QUOTE]

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