Unverified83% confidenceFactTime unknown
低频下潜频率看厂商标注的-3dB下限，标称50Hz以下才算有真低频；很多小音箱标100Hz起，重低音其实是靠箱体共振和EQ拉起的假低音
1
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83%
Confidence
Long-term
Relevance
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Unverified看重频响标注时留意标注范围，低频下探到60Hz以下才有较明显低音表现，仅标注'重低音'但下限100Hz以上多为营销话术88% similarUnverified隔音毯的隔声量随频率变化，低频（<250Hz）隔声远难于高频；标称的单一dB降噪值无意义，应看不同频率的隔声曲线，尤其关注100-500Hz低频段的表现88% similarUnverified低频下潜（频响下限40Hz以下）带来强劲低音但需要更大腔体和功率，小体积便携音箱低频普遍在60-80Hz起，喜欢重低音者别买超小巧款87% similarUnverified标称频响范围必须看正负偏差，无标注±3dB的频响数字（如"20Hz-20kHz"）参考价值极低；真正评价低频看-3dB或-6dB下限频率85% similarUnverified5寸监听低频下潜一般到45-50Hz，若需要完整听到电子乐/嘻哈的超低频(30Hz以下)，应搭配10寸有源低音炮而非盲目上8寸箱子84% similar
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