正確連接三(san)根線的(de)(de)喇叭，要先明確三(san)根線的(de)(de)性質，再(zai)對應(ying)連接到電源和音(yin)響設備上。

在(zai)汽(qi)(qi)車(che)(che)(che)音(yin)響(xiang)系統里(li)，喇(la)叭(ba)(ba)三根(gen)(gen)線(xian)(xian)(xian)(xian)(xian)分(fen)別(bie)為正(zheng)極(ji)、負(fu)(fu)極(ji)和(he)控制線(xian)(xian)(xian)(xian)(xian)。連(lian)(lian)接(jie)前先關閉電(dian)(dian)(dian)源(yuan)，將(jiang)正(zheng)極(ji)線(xian)(xian)(xian)(xian)(xian)接(jie)電(dian)(dian)(dian)源(yuan)正(zheng)極(ji)，負(fu)(fu)極(ji)線(xian)(xian)(xian)(xian)(xian)接(jie)電(dian)(dian)(dian)源(yuan)負(fu)(fu)極(ji)，控制線(xian)(xian)(xian)(xian)(xian)根(gen)(gen)據具體電(dian)(dian)(dian)路設(she)計和(he)控制方式(shi)連(lian)(lian)接(jie)。汽(qi)(qi)車(che)(che)(che)喇(la)叭(ba)(ba)的三根(gen)(gen)線(xian)(xian)(xian)(xian)(xian)也可能是左(zuo)聲(sheng)(sheng)道(dao)、右聲(sheng)(sheng)道(dao)和(he)地(di)(di)線(xian)(xian)(xian)(xian)(xian)，接(jie)線(xian)(xian)(xian)(xian)(xian)前關閉并拔掉(diao)音(yin)響(xiang)設(she)備(bei)電(dian)(dian)(dian)源(yuan)，把音(yin)響(xiang)設(she)備(bei)上的L（左(zuo)聲(sheng)(sheng)道(dao)）和(he)R（右聲(sheng)(sheng)道(dao)）標(biao)(biao)識(shi)，分(fen)別(bie)用連(lian)(lian)接(jie)線(xian)(xian)(xian)(xian)(xian)與喇(la)叭(ba)(ba)的左(zuo)、右聲(sheng)(sheng)道(dao)線(xian)(xian)(xian)(xian)(xian)相連(lian)(lian)，再將(jiang)音(yin)響(xiang)設(she)備(bei)上的地(di)(di)線(xian)(xian)(xian)(xian)(xian)標(biao)(biao)識(shi)連(lian)(lian)接(jie)到(dao)喇(la)叭(ba)(ba)的地(di)(di)線(xian)(xian)(xian)(xian)(xian)上。摩托(tuo)車(che)(che)(che)或自行(xing)車(che)(che)(che)喇(la)叭(ba)(ba)的三根(gen)(gen)線(xian)(xian)(xian)(xian)(xian)一般是電(dian)(dian)(dian)源(yuan)線(xian)(xian)(xian)(xian)(xian)、電(dian)(dian)(dian)源(yuan)線(xian)(xian)(xian)(xian)(xian)和(he)地(di)(di)線(xian)(xian)(xian)(xian)(xian)，連(lian)(lian)接(jie)時把紅色(se)線(xian)(xian)(xian)(xian)(xian)連(lian)(lian)到(dao)電(dian)(dian)(dian)瓶(ping)正(zheng)極(ji)，黑(hei)色(se)線(xian)(xian)(xian)(xian)(xian)連(lian)(lian)到(dao)電(dian)(dian)(dian)瓶(ping)負(fu)(fu)極(ji)，第三根(gen)(gen)線(xian)(xian)(xian)(xian)(xian)連(lian)(lian)接(jie)到(dao)汽(qi)(qi)車(che)(che)(che)金屬部分(fen)。

總(zong)之，連接(jie)三(san)根(gen)線(xian)的喇叭(ba)(ba)時，關鍵在于(yu)準確判(pan)斷(duan)每根(gen)線(xian)的作(zuo)用，按照正確步(bu)驟連接(jie)，這樣(yang)才能保證喇叭(ba)(ba)正常(chang)工(gong)作(zuo)，發揮出應有(you)的性能。