Subject: [AUDITORY] Advise on coupling pre-amp to insert earphones From: "Barrett, Liam" <l.barrett.16@xxxxxxxx> Date: Fri, 20 Jan 2023 12:19:29 +0000--_000_AM5PR0102MB262734FEEEAEB9EF6359AD9391C59AM5PR0102MB2627_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear Auditory List, I will be adding a set of etymotic ER-3C insert earphones (50 Ohm) to my EE= G set-up. I am currently considering how best to link these up to my HiFi s= ystem. Specifically what spec pre-amp I should find to couple the earphones= with. I am intending on presenting both computer-generated signals as well= as using a microphone for online auditory feedback. I have a RME FireFace = 400 audio interface between the computer, microphone and the headphones. I = am looking for a pre-amp that will generate excellent SNR. Any suggestions = or advise on setting up this interface would be greatly appreciated. Best, Liam --_000_AM5PR0102MB262734FEEEAEB9EF6359AD9391C59AM5PR0102MB2627_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:o=3D"urn:schemas-microsoft-com:office:office" xmlns:w=3D"urn:sc= hemas-microsoft-com:office:word" xmlns:m=3D"http://schemas.microsoft.com/of= fice/2004/12/omml" xmlns=3D"http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style><!-- /* Font Definitions */ @xxxxxxxx {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @xxxxxxxx {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm; font-size:11.0pt; font-family:"Calibri",sans-serif;} span.DefaultFontHxMailStyle {mso-style-name:"Default Font HxMail Style"; font-family:"Calibri",sans-serif; color:windowtext; font-weight:normal; font-style:normal; text-decoration:none none;} .MsoChpDefault {mso-style-type:export-only;} @xxxxxxxx WordSection1 {size:612.0pt 792.0pt; margin:72.0pt 72.0pt 72.0pt 72.0pt;} div.WordSection1 {page:WordSection1;} --></style> </head> <body lang=3D"EN-GB" style=3D"word-wrap:break-word"> <div class=3D"WordSection1"> <p class=3D"MsoNormal"><span lang=3D"EN-US">Dear Auditory List,<o:p></o:p><= /span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p> </o:p></span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">I will be adding a set of etymo= tic ER-3C insert earphones (50 Ohm) to my EEG set-up. I am currently consid= ering how best to link these up to my HiFi system. Specifically what spec p= re-amp I should find to couple the earphones with. I am intending on presenting both computer-generated signals as well= as using a microphone for online auditory feedback. I have a RME FireFace = 400 audio interface between the computer, microphone and the headphones. I = am looking for a pre-amp that will generate excellent SNR. Any suggestions or advise on setting up this inter= face would be greatly appreciated.<o:p></o:p></span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p> </o:p></span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">Best,<o:p></o:p></span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">Liam</span><span class=3D"Defau= ltFontHxMailStyle"><span style=3D"font-size:12.0pt"><o:p></o:p></span></spa= n></p> <p class=3D"MsoNormal"><span class=3D"DefaultFontHxMailStyle"><span style= =3D"font-size:12.0pt"><o:p> </o:p></span></span></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal"><span class=3D"DefaultFontHxMailStyle"><span style= =3D"font-size:12.0pt"><o:p> </o:p></span></span></p> </div> </body> </html> --_000_AM5PR0102MB262734FEEEAEB9EF6359AD9391C59AM5PR0102MB2627_--