[求助]改音箱喇叭后的问题

Impromptu

本人把DALI102箱子的原有D20TD单元换了seas H519，高音清晰了很多，但平衡感没有原来好（高频比低频强），估计为灵敏度比原来的高音高的问题，所以想请教各位有何办法在不更换单元的基础上做到衰减高频？箱子的中低音为VIFA P17WJ。劳烦各位帮忙，谢谢

impromptu

改好了，效果相当满意，平衡度几乎恢复原来状态

impromptu

改好了，效果相当满意，平衡度几乎恢复原来状态

Impromptu

过两天只要有空就试一试[em01]
还想问一下那个电阻值的计算公式是怎么算？

Eagles

<img src="attachments/dvbbs/2005-5/2005510212730560.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/2005-5/2005510212730560.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Eagles

原来的分频器继续用<img src="attachments/dvbbs/2005-5/200551021240799.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/2005-5/200551021240799.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Impromptu

<img src="attachments/dvbbs/2005-5/200559173746278.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/2005-5/200559173746278.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Impromptu

谢谢这位朋友了！H519灵敏度90dB，原来的D20TD灵敏度89dB，P17WJ灵敏度88dB，如何改？可否不破坏原来箱子的分频器？[em05]

Eagles

简单的串一个电阻会让你的分频点跑掉的。最好是用衰减网络。那就是串一个还要并一个。具体数值。得先告诉我你觉得高音多了多少？

      你可以试试以下组合来听听看哪个比较适合你：

   串：1.5ohm  并15ohm
   串 ：2ohm   并10ohm
   串：3ohm  并6ohm

注意接法：这两个电阻是在分音器后面，喇叭前面。 并是指和喇叭并联/

完美主义

[em05]

Impromptu

以下是引用梦游在2005-5-9 8:33:00的发言：

请问如何计算串联多大值的电阻？我的单元为6Ω，低音单元为8Ω，箱子的阻抗为8Ω，如果串个电阻，阻抗必然会变大，请问如何解决这个问题？[em05]