A bass reflex speaker is designed so that the back wave of a speaker cone is routed through an open port (sometimes called a vent or tube) in the enclosure in order to reinforce overall bass output.
A na-emepụta ọkà okwu dị mgbagwoju anya ka e wee gbaghaa azụ azụ nke ikpo okwu okwu site n'ọdụ ụgbọ mmiri na-emeghe (mgbe ụfọdụ a na-akpọ windo ma ọ bụ tube) n'ime ogige ahụ iji mee ka mmepụta ihe dị elu n'ozuzu.