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Crown D-75A


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#1 cjc

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Posted 03 October 2011 - 02:18 PM

I have a Crown D-75A that sounds absolutely wonderful EXCEPT for a slight/faint, 60hz transformer hum/buzz sound . I don't hear this noise in the music, only from the actual amplifier itself. Is this "normal" ? Is there any way to "soundproof" and "quiet" these little amps?

#2 Tom Lureman

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Posted 29 November 2011 - 11:28 AM

That transformer does buzz a bit.  I have one myself, they all do that.  I have heard of people putting a piece of thing, mushy foam on the top and bottom of the transformer to alleviate the noise.  I have never done this, so I do not know how well it works.  I usually am listening to music through it so I don't notice it.