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这个是DIYAUDIO近日疯长的贴子
讨论的是CARLOSFM的GC用snubber化电源(即使用大电容,并加进我小鬼头所画图中的R9+C5,R10+C6小网络)。。。。我只看了三几页[em02]
http://www.diyaudio.com/forums/showthread.php?s=&threadid=48942&perpage=10&pagenumber=1
从网友的反映看,这个电源声音收效比较大。CAROLSFM本人原来说,使用此电源后,他的LM3886的GC声音比他的小电容版本(约1500U)、稳压电源版本(LM338)都要好。。。
这是第29页#283帖的PETER DANIEL报告:
You might noticed that in a past I had quite big arguments regarding Zobels and regulated supplies for GC amp; I simply didn't like them.
However, as I mentioned already in this thread, last week I tried Carlos' suggestion with regards to snubbers in GC supply (and big caps) and right away I liked the results. It is better even comparing to battery supply I was using up untill now. There is more bass slamm but at the same time the mids and highs are not veiled by anything (like it was in a case of regulators). There is more midrange presence and dynamics, but also what suprises me, more micro detail, something I wouldn't really expect
The whole thing makes up for an improved GC supply and I would greatly recommmend it to everybody. Well done Carlos.
大意是与CARLOSFM的报告一致。。。并称他原来不喜欢这种电源,但试过后,觉得效果很满意,比他用电池供电还好。低频改善的同时,中高频仍保持优秀的表现(他的GC应该是用LM3875或LM4780的)
最后一句是说:此电源能整体提升GC的声音,我会推荐给每一个人。CARLOSFM,你做得好
这个是CARLOSFM画的图,也就是此帖第1贴所引用的图(图中文字有标:仅限于个人DIY使用[em11],那个阻容网络在IC的电源引脚焊接)
<img src="attachments/dvbbs/2005-1/200511273314717.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-1/200511273314717.gif\');}" onmousewheel="return imgzoom(this);" alt="" />
这是另一个图(某位网友的调整实例,但没做到焊在IC引脚的要求[em11]),也是第1帖连接里的
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