<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.postbody
{mso-style-name:postbody;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>VIRUS WARNING<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi List, I just got a “threat ware” virus from the History of Recording link in Chris’ signature. I was looking at the history of Trident Consoles and got nailed<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>BEWARE<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dave Magnuson<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Synth-diy [mailto:synth-diy-bounces@dropmix.xs4all.nl] <b>On Behalf Of </b>Chris Juried<br><b>Sent:</b> Monday, December 21, 2015 11:41 AM<br><b>To:</b> Mattias Rickardsson; synthdiy diy<br><b>Subject:</b> Re: [sdiy] Coolaudio VCAs: V2162 noisier than V2164?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Hi Mattias,<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>What instrument(s) are you using for you SNR measurements? <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1450423174763_159572"><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1450423174763_159574"><div id="yui_3_16_0_1_1450423174763_159573"><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Sincerely, <br> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1450423174763_159594"><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'>Chris Juried <br>Audio Engineering Society (AES) Member <br>InfoComm-Recognized AV Technologist<br><span class=postbody><a href="http://www.juriedengineering.com/" target="_blank" id="yui_3_16_0_1_1450423174763_159598">http://www.JuriedEngineering.com</a> (Juried Engineering, LLC.)</span><br><span class=postbody><a href="http://www.tubeequipment.com/" target="_blank" id="yui_3_16_0_1_1450423174763_159600">http://www.TubeEquipment.com</a> (Tube Equipment Corporation)</span><br><span class=postbody><a href="http://www.historyofrecording.com/" target="_blank" id="yui_3_16_0_1_1450423174763_159602">http://www.HistoryOfRecording.com</a> (History of Recording)</span><o:p></o:p></span></p></div></div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><div id="yui_3_16_0_1_1450423174763_159636"><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1450423174763_159634"><div id="yui_3_16_0_1_1450423174763_159633"><div id="yui_3_16_0_1_1450423174763_159632"><div id="yui_3_16_0_1_1450423174763_159631"><div class=MsoNormal align=center style='text-align:center;background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> Mattias Rickardsson <<a href="mailto:mr@analogue.org">mr@analogue.org</a>><br><b>To:</b> synthdiy diy <<a href="mailto:synth-diy@dropmix.xs4all.nl">synth-diy@dropmix.xs4all.nl</a>> <br><b>Sent:</b> Monday, December 21, 2015 10:21 AM<br><b>Subject:</b> [sdiy] Coolaudio VCAs: V2162 noisier than V2164?</span><span style='font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1450423174763_159635"><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-family:"Helvetica","sans-serif";color:black'><br>Hi there VCA lovers,<br><br>I've done some measurements of SNR & THD of the 2164 and 2162 VCA ICs<br>from Coolaudio, and I'm very surprised with the noise results I'm<br>getting. With the 2162 I cannot reach a SNR over 95 dB before<br>clipping, at any gain. With the 2164 at gain=1 I reach 120 dB SNR.<br>That's a huge difference!<br><br>When trimmed properly the 2162 does have slightly better THD, but the<br>noise seems to always be there in the background. I hope my<br>measurements are correct... the "-97 dBV" noise spec in the V2164<br>datasheet seems a bit odd to me compared to the "-94 dBu" in the V2164<br>dataheet - or I've misunderstood them.<br><br>Has anyone else tried the 2162 (either from THAT or from Coolaudio)<br>and compared it to the 2164 or other VCAs?<br><br>/mr<br>_______________________________________________<br>Synth-diy mailing list<br><a href="mailto:Synth-diy@dropmix.xs4all.nl">Synth-diy@dropmix.xs4all.nl</a><br><a href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br><br><o:p></o:p></span></p></div></div></div></div></div></div></body></html>