KHT9000ACE是KEF 采用ACE技术制成的首部扬声器。所谓ACE技术(Acoustic Compliance Enhancement)就是一种把活性炭封装到箱体内,控制箱内内压,在不损害低音域再现能力的同时能把箱体尺寸缩小的技术。以这部KHT9000ACE为例,它的低音可以与比它箱体大1.7倍左右的扬声器相匹敌。
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