重低音喇叭(Subwoofer)是一种低频率的扬声器,其频率介于20至200赫兹之间,在THX标准下则低于80赫兹[1]。重低音喇叭大约在1960年代问世,并随着感恩至死、史提利·丹等乐团的应用逐渐大众化[2]。在传统的5.1声道中,即会用到一个重低音喇叭。[3]
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