Unverified78% confidenceDecision RuleTime unknown

监听用途选耳机时阻抗和灵敏度要匹配返送/调音台输出：低阻高敏（如16Ω/110dB以上）适合手机和调音台直推；高阻（100Ω以上）需专用推力设备，插错设备会导致音量不足或底噪明显

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