Unverified82% confidenceDecision RuleTime unknown
AVR功放选购看解码通道数而非标称瓦数：9.2功放才能原生驱动5.1.4布局；虚标'1000W'多为峰值功率，应看每声道RMS功率(通常80-120W/声道足够家用)
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Unverified功放输出功率需匹配音箱灵敏度与阻抗：驱动6欧、灵敏度85dB以下的书架箱，选每声道≥100W(8欧)的机型；灵敏度90dB以上的箱子60-80W足够79% similarUnverified功放标称功率务必看驱动条件：以'8欧姆/20Hz-20kHz全频段/两声道同时驱动/THD 0.08%'标注的功率才可靠；单标'6欧姆/1kHz/单声道'的峰值功率往往虚高2-3倍，实际全声道同驱功率可能只有标称的40%77% similarUnverified额定功率1000-1200W已能满足绝大多数家用及轻商用需求；盲目追求1600W+会导致噪音超85分贝且家用16A插座易跳闸75% similarUnverified近场监听功率无需追求大瓦数：50W/声道（RMS）对5-7寸单元在近距离已充分，标称峰值功率参考意义小，应看RMS持续功率和是否为双功放（低音/高音独立放大）设计75% similarUnverified多口同时输出时总功率会被分摊，标榜65W的双口机型同时充两设备可能每口仅30W左右，需看'多口同时输出'规格而非单口峰值75% similar
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