Unverified85% confidenceDecision RuleTime unknown
up-firing向上单元依赖天花板反射形成头顶声，要求天花板平整、材质硬（水泥/石膏）、层高2.4-3.6米；斜顶、镂空吊顶或层高超过3.6米会导致反射失效，此类房间应选真实吸顶/壁挂后环绕音箱而非依赖反射
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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