一、效果器電源對音色的影響大嗎
效果器電源對音色有影響,一(yi)個差勁的(de)(de)電源會(hui)為你的(de)(de)演(yan)奏帶(dai)來噪聲,更重(zhong)(zhong)(zhong)要的(de)(de)是會(hui)帶(dai)來其他(ta)更嚴重(zhong)(zhong)(zhong)的(de)(de)問題(ti),比(bi)(bi)如(ru)漏電,比(bi)(bi)如(ru)效果器重(zhong)(zhong)(zhong)啟。沒有什么(me)比(bi)(bi)正在臺上忘情(qing)演(yan)出而(er)(er)這時聲音嘎然而(er)(er)止更郁悶的(de)(de)事情(qing)了。如(ru)果使用的(de)(de)電壓(ya)不穩定,那么(me)就會(hui)發生重(zhong)(zhong)(zhong)啟的(de)(de)情(qing)況。
二、效果器電源如何選擇
1、首先先了解一下最基本的電源規格:
直(zhi)(zhi)流用DC表示;交(jiao)流用AC表示。提示:在選擇(ze)電源的(de)時候,必須確認你的(de)效(xiao)果器是直(zhi)(zhi)流供電還是交(jiao)流(大(da)部分是直(zhi)(zhi)流),千萬不能(neng)搞(gao)混!
電壓:用(yong)伏特(V)來表示,常見的效果器電源是9V的,也(ye)有12V、15V、24V等各種(zhong)。
提示(shi):在(zai)選擇電源的時候,必須(xu)保證電源的輸出(chu)電壓(ya)(ya)和效果器(qi)要求的電壓(ya)(ya)是一致(zhi)的!
電(dian)(dian)流:用毫(hao)(hao)安(mA)來表示,通(tong)常效果器電(dian)(dian)流都是(shi)幾(ji)十到幾(ji)百毫(hao)(hao)安。
提示:電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)不需要(yao)和(he)效(xiao)(xiao)果(guo)(guo)(guo)器(qi)(qi)要(yao)求的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)完全一(yi)致(zhi)(zhi),只要(yao)保證大(da)(da)于(yu)(yu)(yu)效(xiao)(xiao)果(guo)(guo)(guo)器(qi)(qi)電(dian)(dian)(dian)(dian)(dian)流(liu)即可。比如,效(xiao)(xiao)果(guo)(guo)(guo)器(qi)(qi)上寫的(de)(de)(de)(de)(de)(de)是(shi)(shi)200mA,那(nei)么(me)(me)你(ni)選擇(ze)400mA甚至更(geng)大(da)(da)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)也是(shi)(shi)可以(yi)用的(de)(de)(de)(de)(de)(de),因為(wei)(wei)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)上寫的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)是(shi)(shi)指最大(da)(da)供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)(de)(de)參數,而(er)不是(shi)(shi)不管你(ni)接什么(me)(me)效(xiao)(xiao)果(guo)(guo)(guo)器(qi)(qi),它永遠都輸(shu)出(chu)(chu)那(nei)么(me)(me)大(da)(da)電(dian)(dian)(dian)(dian)(dian)流(liu),這一(yi)點通(tong)常是(shi)(shi)很容易混淆(xiao)的(de)(de)(de)(de)(de)(de),很多人(ren)反映(ying)說我找(zhao)不到完全一(yi)致(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)流(liu)大(da)(da)小的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan),就(jiu)(jiu)是(shi)(shi)他們認為(wei)(wei)電(dian)(dian)(dian)(dian)(dian)流(liu)大(da)(da)小必須是(shi)(shi)完全一(yi)致(zhi)(zhi)的(de)(de)(de)(de)(de)(de),這是(shi)(shi)錯誤的(de)(de)(de)(de)(de)(de),實際上不需要(yao)完全一(yi)致(zhi)(zhi),只要(yao)大(da)(da)于(yu)(yu)(yu)就(jiu)(jiu)可以(yi)。但不能(neng)小于(yu)(yu)(yu)要(yao)求電(dian)(dian)(dian)(dian)(dian)流(liu),如果(guo)(guo)(guo)你(ni)的(de)(de)(de)(de)(de)(de)效(xiao)(xiao)果(guo)(guo)(guo)器(qi)(qi)要(yao)求的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)是(shi)(shi)800mA,那(nei)么(me)(me)400mA的(de)(de)(de)(de)(de)(de)這款電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)就(jiu)(jiu)不能(neng)夠被(bei)使用了。如果(guo)(guo)(guo)你(ni)是(shi)(shi)用一(yi)塊電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)同時帶好幾個(ge)效(xiao)(xiao)果(guo)(guo)(guo)器(qi)(qi)的(de)(de)(de)(de)(de)(de)話,則要(yao)保證電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)最大(da)(da)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)大(da)(da)于(yu)(yu)(yu)等于(yu)(yu)(yu)所有效(xiao)(xiao)果(guo)(guo)(guo)器(qi)(qi)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)總和(he)。
極(ji)性:也(ye)就是(shi)(shi)正(zheng)負級,通(tong)常(chang)單塊效果器的(de)(de)極(ji)性都是(shi)(shi)外正(zheng)內(nei)負的(de)(de),也(ye)有相反的(de)(de),而常(chang)用(yong)的(de)(de)民用(yong)設備的(de)(de)電源通(tong)常(chang)是(shi)(shi)外負內(nei)正(zheng)的(de)(de)。
提示(shi):只(zhi)有直流電源(yuan)才存在(zai)極性的標記,交流電源(yuan)是(shi)沒有的。極性也是(shi)絕對要(yao)確認(ren)符合的參數(shu)之一,不能相反。
2、效果器的電源規格
然后來檢查(cha)自己效(xiao)果器(qi)上所要求的(de)電源(yuan)(yuan)規(gui)格是什么(me),通常你會在效(xiao)果器(qi)電源(yuan)(yuan)插口附近或者背(bei)面(mian)的(de)規(gui)格說(shuo)(shuo)明里找到電源(yuan)(yuan)規(gui)格要求,也可以參(can)看(kan)說(shuo)(shuo)明書來確(que)認。
比如(ru)說效(xiao)果(guo)(guo)器(qi)(qi)上邊緣寫著9V、DC、外正內負(fu),就是(shi)使用(yong)外正內伏極性(xing)的(de)9伏直流(liu)(liu)電的(de)意思(si),這種(zhong)規格(ge)是(shi)最常(chang)見的(de)單(dan)塊效(xiao)果(guo)(guo)器(qi)(qi)的(de)電源規格(ge),通(tong)常(chang)這種(zhong)規格(ge)的(de)效(xiao)果(guo)(guo)器(qi)(qi)都(dou)(dou)是(shi)支(zhi)持使用(yong)電池供電的(de)。這里沒有(you)寫明(ming)(ming)電流(liu)(liu)大小,所以(yi)就需要查看說明(ming)(ming)書來確認,不(bu)過一般可(ke)以(yi)使用(yong)電池的(de)效(xiao)果(guo)(guo)器(qi)(qi)的(de)電流(liu)(liu)都(dou)(dou)不(bu)會(hui)很大,通(tong)常(chang)幾百毫安都(dou)(dou)足夠,而(er)大部(bu)分電源都(dou)(dou)至少是(shi)200mA以(yi)上的(de),通(tong)常(chang)都(dou)(dou)可(ke)以(yi)用(yong)。如(ru)果(guo)(guo)電流(liu)(liu)要求(qiu)比較(jiao)大的(de)話,通(tong)常(chang)效(xiao)果(guo)(guo)器(qi)(qi)上都(dou)(dou)會(hui)有(you)標明(ming)(ming)。
3、然后來看電源上面標明的規格
一(yi)款SPOT效果器專用(yong)電(dian)(dian)源(yuan),輸入的(de)規格(ge)是(shi)100-240V,也就是(shi)說是(shi)從100V到(dao)(dao)240V電(dian)(dian)壓都可使(shi)用(yong),后(hou)面的(de)50/60HZ以及0.35A這(zhe)個可以不看。輸出規格(ge)是(shi)9V DC,直流(liu)(liu),輸出電(dian)(dian)流(liu)(liu)最大(da)可以達到(dao)(dao)1700毫安,因此它可以為多塊效果器提供電(dian)(dian)源(yuan),極性(xing)是(shi)外正內(nei)負。