普通(tong)音(yin)(yin)箱(xiang)(xiang)可以(yi)(yi)分為倒(dao)相(xiang)式和(he)密(mi)閉式兩種。密(mi)閉式音(yin)(yin)箱(xiang)(xiang)就是(shi)箱(xiang)(xiang)體封(feng)閉，箱(xiang)(xiang)體內部沒有任何通(tong)口與外界相(xiang)聯(lian)；而倒(dao)相(xiang)式就是(shi)在音(yin)(yin)箱(xiang)(xiang)的前(qian)面板或(huo)后面板上裝(zhuang)有圓(yuan)柱形的倒(dao)相(xiang)管(guan)，將箱(xiang)(xiang)體的內外連通(tong)。它是(shi)按照亥姆霍茲共振器(qi)的原理工作的，優點(dian)是(shi)靈敏度高(gao)(gao)(gao)，能承(cheng)受(shou)的功率(lv)較(jiao)大(da)，Ktv音(yin)(yin)響設備(bei)出租(zu)，動態范圍(wei)廣(guang)。由(you)于(yu)揚聲(sheng)器(qi)後背的聲(sheng)波還可以(yi)(yi)從倒(dao)相(xiang)孔放出，所(suo)以(yi)(yi)它的聲(sheng)音(yin)(yin)效率(lv)要(yao)高(gao)(gao)(gao)于(yu)密(mi)閉箱(xiang)(xiang)。同(tong)一只揚聲(sheng)器(qi)裝(zhuang)在合適(shi)的倒(dao)相(xiang)箱(xiang)(xiang)中(zhong)(zhong)要(yao)比(bi)裝(zhuang)在同(tong)體積的密(mi)閉箱(xiang)(xiang)中(zhong)(zhong)得(de)到(dao)的低頻聲(sheng)壓要(yao)高(gao)(gao)(gao)出3dB，Ktv音(yin)(yin)響設備(bei)安裝(zhuang)，也就是(shi)說有助于(yu)音(yin)(yin)箱(xiang)(xiang)低頻部分的表現(xian)，所(suo)以(yi)(yi)這使得(de)倒(dao)相(xiang)箱(xiang)(xiang)得(de)以(yi)(yi)廣(guang)泛的流行。

音(yin)響(xiang)電(dian)(dian)(dian)(dian)源(yuan)部(bu)(bu)分(fen)(fen)。音(yin)箱(xiang)(xiang)(xiang)內的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)路為(wei)低(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)路，所(suo)以(yi)首先(xian)需(xu)要(yao)一(yi)(yi)個(ge)將高電(dian)(dian)(dian)(dian)壓(ya)(ya)變(bian)(bian)為(wei)低(di)電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)(de)變(bian)(bian)壓(ya)(ya)器，然(ran)后(hou)就是(shi)(shi)用(yong)兩個(ge)或(huo)四(si)個(ge)二極管(guan)將交流(liu)(liu)電(dian)(dian)(dian)(dian)轉換為(wei)直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)，較后(hou)是(shi)(shi)用(yong)大(da)小(xiao)(xiao)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)對(dui)電(dian)(dian)(dian)(dian)壓(ya)(ya)進(jin)行(xing)濾波(bo)(bo)以(yi)使輸出(chu)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)趨于(yu)平緩（在(zai)普通(tong)(tong)的(de)(de)(de)(de)(de)音(yin)箱(xiang)(xiang)(xiang)中穩壓(ya)(ya)管(guan)一(yi)(yi)般是(shi)(shi)沒必要(yao)用(yong)的(de)(de)(de)(de)(de)）。實(shi)話說這幾個(ge)是(shi)(shi)很不(bu)被(bei)人注意的(de)(de)(de)(de)(de)部(bu)(bu)分(fen)(fen)，其實(shi)它(ta)們(men)對(dui)于(yu)音(yin)箱(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)重(zhong)要(yao)性絲(si)毫(hao)不(bu)小(xiao)(xiao)于(yu)主機(ji)(ji)電(dian)(dian)(dian)(dian)源(yuan)對(dui)于(yu)你計算(suan)機(ji)(ji)的(de)(de)(de)(de)(de)重(zhong)要(yao)性。變(bian)(bian)壓(ya)(ya)器一(yi)(yi)般被(bei)固(gu)定在(zai)主音(yin)箱(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)底部(bu)(bu)（這也是(shi)(shi)主音(yin)箱(xiang)(xiang)(xiang)份量重(zhong)的(de)(de)(de)(de)(de)原(yuan)因），對(dui)它(ta)的(de)(de)(de)(de)(de)要(yao)求是(shi)(shi)要(yao)有足夠的(de)(de)(de)(de)(de)功(gong)(gong)(gong)率(lv)(lv)輸出(chu)，劣(lie)質產品常(chang)(chang)常(chang)(chang)偷工減料在(zai)這里。考慮(lv)到(dao)一(yi)(yi)些損耗與(yu)效(xiao)率(lv)(lv)的(de)(de)(de)(de)(de)因素(su)，Ktv音(yin)響(xiang)設(she)備廠家(jia)，可以(yi)算(suan)出(chu)如果變(bian)(bian)壓(ya)(ya)器的(de)(de)(de)(de)(de)額定功(gong)(gong)(gong)率(lv)(lv)是(shi)(shi)100W的(de)(de)(de)(de)(de)話，它(ta)實(shi)際(ji)能(neng)(neng)順(shun)利帶動的(de)(de)(de)(de)(de)功(gong)(gong)(gong)放(fang)芯片的(de)(de)(de)(de)(de)功(gong)(gong)(gong)率(lv)(lv)要(yao)在(zai)45-40W以(yi)下(xia)，所(suo)以(yi)通(tong)(tong)過算(suan)音(yin)箱(xiang)(xiang)(xiang)變(bian)(bian)壓(ya)(ya)器與(yu)功(gong)(gong)(gong)放(fang)的(de)(de)(de)(de)(de)功(gong)(gong)(gong)率(lv)(lv)關系也可以(yi)驗證音(yin)箱(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)實(shi)際(ji)額定功(gong)(gong)(gong)率(lv)(lv)是(shi)(shi)否能(neng)(neng)達(da)到(dao)標稱值。整流(liu)(liu)部(bu)(bu)分(fen)(fen)和濾波(bo)(bo)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)都在(zai)電(dian)(dian)(dian)(dian)路板上，曲靖Ktv音(yin)響(xiang)設(she)備，濾波(bo)(bo)的(de)(de)(de)(de)(de)大(da)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)（幾千微法）應該采用(yong)電(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)而且是(shi)(shi)越大(da)越好，可以(yi)采用(yong)一(yi)(yi)個(ge)大(da)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)或(huo)是(shi)(shi)兩個(ge)中容(rong)(rong)(rong)量電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)并聯的(de)(de)(de)(de)(de)方法實(shi)現濾波(bo)(bo)，而小(xiao)(xiao)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)（零點(dian)幾微法以(yi)下(xia)）是(shi)(shi)為(wei)了彌補大(da)濾波(bo)(bo)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)對(dui)高頻濾波(bo)(bo)的(de)(de)(de)(de)(de)不(bu)足。整流(liu)(liu)部(bu)(bu)分(fen)(fen)一(yi)(yi)般問題不(bu)大(da)，但(dan)是(shi)(shi)為(wei)了降(jiang)低(di)成本(ben)，劣(lie)質音(yin)箱(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)濾波(bo)(bo)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)(de)(de)(de)容(rong)(rong)(rong)量都明顯不(bu)足，有的(de)(de)(de)(de)(de)甚至不(bu)到(dao)2000微法；而小(xiao)(xiao)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)很可能(neng)(neng)就被(bei)它(ta)們(men)忽略了。

家(jia)(jia)庭KTV裝修設計為用戶提(ti)出需注意的(de)問題。一(yi)：確定(ding)使用空間。家(jia)(jia)庭KTV也是在家(jia)(jia)中(zhong)置(zhi)辦一(yi)套KTV設備，因(yin)(yin)此在組(zu)建家(jia)(jia)庭KTV的(de)時候，人(ren)們首先要確定(ding)放(fang)(fang)置(zhi)在那里，是在客廳、書房、閣樓、地下室等(deng)等(deng)，不(bu)同的(de)環(huan)境對(dui)器(qi)材的(de)要求是不(bu)一(yi)樣的(de)，開放(fang)(fang)與封(feng)閉的(de)空間所營(ying)造(zao)出的(de)影音效(xiao)果(guo)也完全不(bu)同，這是首先要考慮(lv)的(de)。因(yin)(yin)此人(ren)們想要一(yi)個(ge)好(hao)的(de)家(jia)(jia)庭KTV效(xiao)果(guo)，必須要確定(ding)家(jia)(jia)庭KTV使用空間在那里。