前级终于搞好了！！！

cww11

这是其中之一的测试用的器材及听音环境
<img src="attachments/dvbbs/2005-12/2005122813250665.jpg" 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/2005-12/2005122813250665.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

<img src="attachments/dvbbs/2005-12/2005122813546215.jpg" 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/2005-12/2005122813546215.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
JBL4425



<img src="attachments/dvbbs/2005-12/2005122813734289.jpg" 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/2005-12/2005122813734289.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
自制的纯甲类后级

<img src="attachments/dvbbs/2005-12/2005122813837653.jpg" 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/2005-12/2005122813837653.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
正在调整试听中的前级

经过试听，对前级作了一些修改！！使其更具胆味

这个前级出来的声音很靓！！它既有胆机的味道，也有石机的动态。可以与万元级的进口器材相比美！！！

aeon

的确,这个是小鬼头跟CCW11 的成果..我一边偷着乐....[em11][em11][em11]

cww11

<img src="attachments/dvbbs/2005-12/20051228124118916.jpg" 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/2005-12/20051228124118916.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
100Hz

<img src="attachments/dvbbs/2005-12/20051228124147134.jpg" 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/2005-12/20051228124147134.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
1kHz


<img src="attachments/dvbbs/2005-12/2005122812422957.jpg" 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/2005-12/2005122812422957.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
10kHz

<img src="attachments/dvbbs/2005-12/20051228124282.jpg" 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/2005-12/20051228124282.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
100kHz


<img src="attachments/dvbbs/2005-12/20051228125716140.jpg" 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/2005-12/20051228125716140.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
500kHz

<img src="attachments/dvbbs/2005-12/20051228125841450.jpg" 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/2005-12/20051228125841450.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
1MHz

由图可以看出，一直到1MHz，波形都无明显下跌和失真！！！整个频响可达1MHz以上
这可是在无负反馈下得到的测试结果！！！！！

cww11

这是前级的方波输出：
<img src="attachments/dvbbs/2005-12/2005122812262466.jpg" 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/2005-12/2005122812262466.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
100Hz

<img src="attachments/dvbbs/2005-12/20051228122658390.jpg" 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/2005-12/20051228122658390.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
1kHz

<img src="attachments/dvbbs/2005-12/2005122812271857.jpg" 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/2005-12/2005122812271857.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
10kHz

<img src="attachments/dvbbs/2005-12/20051228122741832.jpg" 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/2005-12/20051228122741832.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
100kHz

<img src="attachments/dvbbs/2005-12/20051228122758592.jpg" 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/2005-12/20051228122758592.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
500kHz

<img src="attachments/dvbbs/2005-12/20051228122818887.jpg" 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/2005-12/20051228122818887.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
1MHz

这是测试前级用的信号发生仪：
<img src="attachments/dvbbs/2005-12/2005122812309124.jpg" 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/2005-12/2005122812309124.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

由图可以看到整个频带的方波都很好，且无过冲和叠加振荡的情况出现，这可是靓声的条件哦！！！

赤兔

我我又要。。。。

HQ

[em09]

民主

要好音质也不用做那么大的东西啊

cww11

以下是引用tzx在2005-12-29 11:30:00的发言：
不知搂主可否转让一套套件呢？

yuren008

胆前石后。

cww11

以下是引用万健在2006-2-3 16:05:00的发言：
同样成本下，胆前的声音可能好听一点。
胆前配石后，鱼与熊掌兼得

万健

不能这样说，胆与石各有千秋，做后级由于胆要用输出变压器，成本高，而且不容易做好，做前级胆和石都能做出极品来，不过我认为胆还是有点优势，制作简单，供电电压高，动态好，失真主要是偶次谐波，声音好听一点，做石机都想要调出胆味，不如干脆做胆前。不知论坛J版的胆前还要等多久才能出来？

不速之客

说穿了就是可以遮丑[em02]

万健

同样成本下，胆前的声音可能好听一点。
胆前配石后，鱼与熊掌兼得

15060065

[em11]

文招

试过用2A3单端就能推得不错了[em09][em09]

zhudong

看波形真的非常好

傻到家

不管好坏，期待早出套件，试了才知道～

似水流年

以下是引用cww11在2006-2-3 21:50:00的发言：

--  作者：cww11
--  发布时间：2006-2-3 21:50:00

--  那不一定，这个前级曾经把朋友的一个几k胆前比了下去

这么厉害?!!

李乐6665

这后级我到过楼主家看，每个超过300斤，吓得我脚都有点震了。

凌凌漆

原帖由 李乐6665 于 2008-3-17 16:46 发表
这后级我到过楼主家看，每个超过300斤，吓得我脚都有点震了。

现在材料猛涨，保值啊！