tag:blogger.com,1999:blog-8579244640653193982.post7421210414170467719..comments2024-01-13T09:54:52.236+08:00Comments on Yet Another View - by wwenze: JDS Labs cMoyBB v2.03 Review: Measurements Sectionwwenzehttp://www.blogger.com/profile/13100352671039674940noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8579244640653193982.post-32922180049081846232011-04-17T12:17:34.943+08:002011-04-17T12:17:34.943+08:00I can't provide an explanation for soundstage,...I can't provide an explanation for soundstage, but I've read that OPA627 can sound bad with inadequate power supply design.<br /><br />You might also want to check the authenticity of your OPA627AU if you bought them from eBay, since it is one of the most commonly counterfeited chips. 7mA current draw, low DC-offset, resistance measured across pins 1 and 5 should be between 40~60kohms.wwenzehttps://www.blogger.com/profile/13100352671039674940noreply@blogger.comtag:blogger.com,1999:blog-8579244640653193982.post-58330559395329800022011-04-16T22:06:22.153+08:002011-04-16T22:06:22.153+08:00Wwenze,
Very nice technical article, though a bit ...Wwenze,<br />Very nice technical article, though a bit more than I can handle. I can only say that I agree with you that the JDSlabs Cmoy is one excellent amp for the price!<br /><br />I am comparing the JDSlabs on OPA2227 and OPA627AU (soic), and I am hearing the soundstage on the 627AU to be smaller. Wonder if you can help with an eplanation from a technical standpoint.<br /><br />Thanks!Mikehttp://www.headfonia.comnoreply@blogger.com