音響擺放

音響的(de)擺(bai)位(wei)方(fang)法一直是很多音響發燒友(you)們比(bi)較關注的(de)問題。那么(me)KTV音響如何擺(bai)位(wei)呢?接(jie)下來給大家介紹到這(zhe)方(fang)面的(de)相關信息。

1、三一七比例法

這種擺(bai)(bai)位方法是指(zhi)將KTV包(bao)房(fang)長(chang)度均(jun)分為(wei)三(san)等分，報(bao)告(gao)廳音(yin)響，喇(la)(la)叭擺(bai)(bai)在三(san)分之一長(chang)度處，二(er)喇(la)(la)叭之間的(de)(de)間隔(ge)為(wei)房(fang)間三(san)分之二(er)長(chang)度的(de)(de)0.7倍(bei)。在這里大家還(huan)需(xu)要注意的(de)(de)一點　那就是喇(la)(la)叭*好有略微(wei)的(de)(de)向(xiang)內投射角度，不(bu)過沒有向(xiang)內投射亦(yi)可(ke)，聆聽(ting)位置不(bu)可(ke)貼靠(kao)后墻。

2、三三一比例法

這種方法也(ye)(ye)就是(shi)講將房(fang)間長度(du)均(jun)分(fen)為(wei)(wei)三等分(fen)，寬(kuan)度(du)也(ye)(ye)均(jun)分(fen)為(wei)(wei)三等分(fen)，喇(la)叭(ba)擺在長度(du)與(yu)寬(kuan)度(du)的(de)(de)*等分(fen)交點上。喇(la)叭(ba)可(ke)有(you)略微的(de)(de)向內投射角(jiao)度(du)，甚(shen)至(zhi)不需要向內投射亦可(ke)，報告(gao)廳(ting)音響(xiang)廠家，聆聽位置不可(ke)貼靠后墻。這種KTV音響(xiang)擺位方法看上去與(yu)*種和(he)大家介紹的(de)(de)有(you)些相同。但是(shi)它們有(you)著一(yi)定的(de)(de)區別。

音(yin)(yin)響電(dian)(dian)(dian)(dian)(dian)(dian)源部(bu)(bu)(bu)分。音(yin)(yin)箱(xiang)內的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)為(wei)(wei)低壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，所以(yi)首先需要(yao)(yao)一個(ge)(ge)將(jiang)高電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)變(bian)(bian)為(wei)(wei)低電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)(de)變(bian)(bian)壓(ya)(ya)(ya)器，報告廳(ting)音(yin)(yin)響安裝，然(ran)后就是(shi)(shi)(shi)(shi)(shi)用兩個(ge)(ge)或(huo)四個(ge)(ge)二(er)極管將(jiang)交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)轉換為(wei)(wei)直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)，較后是(shi)(shi)(shi)(shi)(shi)用大(da)小電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)進行濾(lv)波以(yi)使(shi)輸(shu)出(chu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)趨于平緩（在普通的(de)(de)音(yin)(yin)箱(xiang)中穩壓(ya)(ya)(ya)管一般是(shi)(shi)(shi)(shi)(shi)沒必要(yao)(yao)用的(de)(de)）。實(shi)話說這(zhe)幾個(ge)(ge)是(shi)(shi)(shi)(shi)(shi)很不(bu)(bu)(bu)被(bei)人注意的(de)(de)部(bu)(bu)(bu)分，其實(shi)它們對(dui)于音(yin)(yin)箱(xiang)的(de)(de)重(zhong)(zhong)要(yao)(yao)性絲毫不(bu)(bu)(bu)小于主機電(dian)(dian)(dian)(dian)(dian)(dian)源對(dui)于你計算機的(de)(de)重(zhong)(zhong)要(yao)(yao)性。變(bian)(bian)壓(ya)(ya)(ya)器一般被(bei)固定在主音(yin)(yin)箱(xiang)的(de)(de)底(di)部(bu)(bu)(bu)（這(zhe)也是(shi)(shi)(shi)(shi)(shi)主音(yin)(yin)箱(xiang)份量(liang)重(zhong)(zhong)的(de)(de)原因(yin)），對(dui)它的(de)(de)要(yao)(yao)求是(shi)(shi)(shi)(shi)(shi)要(yao)(yao)有(you)足夠的(de)(de)功(gong)(gong)率(lv)輸(shu)出(chu)，劣質產品常常偷(tou)工減料(liao)在這(zhe)里(li)。考慮到一些損耗與(yu)(yu)效率(lv)的(de)(de)因(yin)素，可以(yi)算出(chu)如果變(bian)(bian)壓(ya)(ya)(ya)器的(de)(de)額定功(gong)(gong)率(lv)是(shi)(shi)(shi)(shi)(shi)100W的(de)(de)話，它實(shi)際能(neng)順(shun)利(li)帶動(dong)的(de)(de)功(gong)(gong)放芯片的(de)(de)功(gong)(gong)率(lv)要(yao)(yao)在45-40W以(yi)下(xia)，所以(yi)通過(guo)算音(yin)(yin)箱(xiang)變(bian)(bian)壓(ya)(ya)(ya)器與(yu)(yu)功(gong)(gong)放的(de)(de)功(gong)(gong)率(lv)關系也可以(yi)驗證(zheng)音(yin)(yin)箱(xiang)的(de)(de)實(shi)際額定功(gong)(gong)率(lv)是(shi)(shi)(shi)(shi)(shi)否能(neng)達到標(biao)稱值(zhi)。整流(liu)部(bu)(bu)(bu)分和(he)濾(lv)波電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)都在電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板上(shang)，濾(lv)波的(de)(de)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)（幾千微法(fa)）應(ying)該采用電(dian)(dian)(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)而(er)且是(shi)(shi)(shi)(shi)(shi)越大(da)越好，可以(yi)采用一個(ge)(ge)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)或(huo)是(shi)(shi)(shi)(shi)(shi)兩個(ge)(ge)中容(rong)(rong)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)并聯的(de)(de)方法(fa)實(shi)現濾(lv)波，而(er)小電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)（零點幾微法(fa)以(yi)下(xia)）是(shi)(shi)(shi)(shi)(shi)為(wei)(wei)了(le)彌補(bu)大(da)濾(lv)波電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)對(dui)高頻濾(lv)波的(de)(de)不(bu)(bu)(bu)足。整流(liu)部(bu)(bu)(bu)分一般問題不(bu)(bu)(bu)大(da)，但是(shi)(shi)(shi)(shi)(shi)為(wei)(wei)了(le)降低成(cheng)本，劣質音(yin)(yin)箱(xiang)的(de)(de)濾(lv)波電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)容(rong)(rong)量(liang)都明顯(xian)不(bu)(bu)(bu)足，報告廳(ting)音(yin)(yin)響設備，有(you)的(de)(de)甚至不(bu)(bu)(bu)到2000微法(fa)；而(er)小電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)很可能(neng)就被(bei)它們忽略(lve)了(le)。

左/右側環(huan)繞(rao)音箱(xiang)(xiang)。左/右側環(huan)繞(rao)音箱(xiang)(xiang)分別在9點鐘和3點鐘方向(xiang)，位于“皇帝位”兩(liang)側且相距1～3m為(wei)宜，兩(liang)只音箱(xiang)(xiang)正面相對。環(huan)繞(rao)音箱(xiang)(xiang)到底需(xu)要掛多高才合適呢？事實上，環(huan)繞(rao)音箱(xiang)(xiang)的(de)高度并沒有(you)一(yi)個(ge)太(tai)嚴格的(de)標(biao)準，但必(bi)須注(zhu)意的(de)是，環(huan)繞(rao)音箱(xiang)(xiang)的(de)聲音的(de)擴散性(xing)應重于方向(xiang)性(xing)，以便營造濃郁的(de)環(huan)繞(rao)氣氛。

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