发一个前段时间调整过的DIY箱子!
该箱购于去年。最初为一店老板的DIY方案当初觉得听起来还行就照着他的方案入手了。回来听了一段时间后开始对箱子不满意。觉得有必要大改一番了。箱子原来的声间在高频上过亮。声音显得单簿低频方面自己还能凑合吧。前段时间在梦版的技术支持下完成了偶的测量设备。由此便开始了改进此箱的过程。现上图。这是分别测的低音同高音的曲线。明显能看出导相管不合理。本来打算扩充导相管的口径。但对自己的手工没有信心。所以只有将导相管的长度减短。直到现在也没能完全满意。不过对于这个低音单元也不期望他的低频有更好的表现所以就摆手了。
原来箱子用了一个佳讯的A-23的分频。其实并不适合这箱子。所以就从新打造分频。这是用LSPCAD模拟的频响及相位
下面送上分频器的图纸。
<img src="attachments/dvbbs/2005-1/200514195542631.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/2005-1/200514195542631.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
这是装好分频后且上箱的最终的实测曲线。只作了远场测量。
<img src="attachments/dvbbs/2005-1/200514195727.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/2005-1/200514195727.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
最后上个箱子的图嘻!
严重支持!
之后接着把俺那套也研究出来。要不然把它抗回俺家!
这对箱子我用过。
它的声音属于明快、解析力较高的类型,也可以爆的起来。以这个成本价位来说,属于非常超值的了!上张这个箱子的图。
进展蛮快
胖子多努力!俺支持你丫!降温了!!!箱子声音也变了??
这些天深圳降温降得厉害!晚上也在玩软件。所以顺手就测了一下原来调整的这对箱子。发现变化还真不小。高音的灵敏度明显要低了。两次测试的环境一样。温度相差10度左右。第一张图中的上面那个频响是刚调好时测的都为远场下面的那张为今晚测得的。第二张为另一个声道。第三张是近场加远场的频响。<img src="attachments/dvbbs/2005-1/200511503310316.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/2005-1/200511503310316.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="attachments/dvbbs/2005-1/200511503330663.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/2005-1/200511503330663.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="attachments/dvbbs/2005-1/200511503345193.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/2005-1/200511503345193.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
维卡亚 发表于 2005-1-15 00:34 static/image/common/back.gif
这些天深圳降温降得厉害!晚上也在玩软件。所以顺手就测了一下原来调整的这对箱子。发现变化还真不小。高音 ...
受到启示,以后在新单元入手测试时,还应该留意温度和湿度。
这本身就是测试环境记录的基础数据。
;P日记还要写:X月X日,晴/雨/多云天呐。
再加上一点心情的写照,NND(成微博了):P
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