国庆DAC 9*tda1543
国庆期间终于将1543DAC放进了机箱,用旧的CEC891改装而成。1543用9片并联,具体感受如下:
1)实验过单片1543,感觉整体偏暗,但听着非常舒服,不过和其他CD机比起来细节上的差距还是较大。
2)RECLOCK对音质的改善比较明显。
3)分别试了:2、4、5、8、9片并联,感觉力度和音场在不断改善,低频的结相力增加,但音乐感和整体均衡变化不大。
4)电源分4组供电,背静和力度改善较明显。<img src="attachments/dvbbs/200410810505636832.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/200410810505636832.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/200410810513140161.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/200410810513140161.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/200410810515784655.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/200410810515784655.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
CD用的是KENWOOD 7010
TDA1541难于并联
并联确实很难
请教一下。
以下是引用chopin在2004-10-8 10:52:00的发言:国庆期间终于将1543DAC放进了机箱,用旧的CEC891改装而成。1543用9片并联,具体感受如下:
1)实验过单片1543,感觉整体偏暗,但听着非常舒服,不过和其他CD机比起来细节上的差距还是较大。
2)RECLOCK对音质的改善比较明显。
3)分别试了:2、4、5、8、9片并联,感觉力度和音场在不断改善,低频的结相力增加,但音乐感和整体均衡变化不大。
4)电源分4组供电,背静和力度改善较明显。<img src="attachments/dvbbs/200410810505636832.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/200410810505636832.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/200410810513140161.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/200410810513140161.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/200410810515784655.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/200410810515784655.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
CD用的是KENWOOD<I></I> 7010
Re-clock电路是不是用在 CD机数字信号和接收芯片(8412)之间吗?
具体的电路是怎样的?
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