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这个箱子是帮同学打的,16L箱体是以前就做好的,一直在寻找合适的单元,最后选用了银笛的YD167-1505X-S和QG5-34防磁单元,单元价格比较便宜,4个三百大圆有找。1505X的实测Qts在0.5,比银笛提供的数据要高,而且在5K有一个8dB的分割振动。而高音单元的Fo大概在1.8K,最终决定分采用频点定在3K多,高低音均3阶的方案。
测试用的是speakerworkshop和justmls
分频器为LSPCAD辅助设计
高音听起来太亮了点,还得调整
幅频响应,黑线和红线WM61A距离音箱1.5米高音反接和正接的结果,蓝线为距离1米高音反接
用银笛单元打造的书架箱
阻抗响应
<img src="attachments/dvbbs/2004880465081950.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/2004880465081950.gif\');}" onmousewheel="return imgzoom(this);" alt="" />
近场测试和时间窗法测试拟合后的结果,没有叠加倒相管的辐射
<img src="attachments/dvbbs/2004881313854411.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/2004881313854411.gif\');}" onmousewheel="return imgzoom(this);" alt="" />
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