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很久没算了,简单回答一下.
1:S的单位是平方厘米;V的单位是升(L).
2:FB不是音箱的谐振频率,而是倒相管的调谐频率.是根据喇叭的谐振频率F和Q值来选取的,具体的计算我也不是很清楚,一般都是用图表来表示的.<img src="attachments/dvbbs/200471620253063442.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/200471620253063442.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
其原则应该是使得倒相管调谐频率产生的低频响应和喇叭装箱后的低频响应合成后的低频响应曲线平直并且尽可能向更低的频段延伸.当然也有故意调成有峰或谷的响应曲线来获得某种期望的听感或者效果.
3:一般为UF(微法)和MH(毫亨). |
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