Lowering Mechanical Noise Floor in Speakers Part 2

[Audioholics]

<P><FONT face="Arial, Helvetica, sans-serif" size=2><A href="http://www.audioholics.com/techtips/audioprinciples/loudspeakers/MechanicalNoiseLoudspeaker.php"><IMG style="WIDTH: 125px; HEIGHT: 75px" alt=[mechanicalnoisefloor] hspace=10 src="http://www.audioholics.com/news/thumbs/mechanicalnoisefloor_th.gif" align=left border=0></A>In </FONT><A href="http://www.audioholics.com/techtips/audioprinciples/loudspeakers/mechanicalnoisefloor.php"><FONT face="Arial, Helvetica, sans-serif" size=2>Part I</FONT></A><FONT face="Arial, Helvetica, sans-serif" size=2> of this series, devoted to loudspeaker panel vibration, we took a look at the maths &amp; theory underpinning the mechanics of panel vibration. Here in Part 2, we’ll take an empirical look at panel vibration, investigating with both accelerometer &amp; microphone. The mechanical &amp; acoustical performance of a loudspeaker cabinet’s panel will be assessed at various stages of construction, with an eye to noting any improvements along the way. This report will conclude with a simple before/after comparison of the acoustical output of one of the test cabinet’s panels, followed by a subjective assessment of the system’s performance.</FONT></P><P><FONT face="Arial, Helvetica, sans-serif" size=2>[Read the Article]</FONT></P>