{"id":9283,"date":"2026-02-15T17:50:13","date_gmt":"2026-02-15T17:50:13","guid":{"rendered":"https:\/\/www.zehsm.com\/?p=9283"},"modified":"2026-02-15T17:50:13","modified_gmt":"2026-02-15T17:50:13","slug":"%e3%82%b9%e3%83%94%e3%83%bc%e3%82%ab%e3%83%bc%e3%81%ae%e5%87%ba%e5%8a%9b%e3%81%a8%e9%9f%b3%e9%87%8f%e3%81%ab%e9%96%a2%e3%81%99%e3%82%8b%e3%82%88%e3%81%8f%e3%81%82%e3%82%8b%e8%aa%a4%e8%a7%a3%e3%82%92","status":"publish","type":"post","link":"https:\/\/www.zehsm.com\/ja\/top-myths-about-loudspeaker-power-and-volume-explained\/","title":{"rendered":"\u30e9\u30a6\u30c9\u30b9\u30d4\u30fc\u30ab\u30fc\u306e\u51fa\u529b\u3068\u97f3\u91cf\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8aa4\u89e3"},"content":{"rendered":"<p>\u4f55\u5341\u5e74\u3082\u306e\u9593\u3001\u6d88\u8cbb\u8005\u306f\u30aa\u30fc\u30c7\u30a3\u30aa\u6a5f\u5668\u306e\u8907\u96d1\u306a\u74b0\u5883\u3092\u3001\u6839\u5f37\u3044\u8aa4\u89e3\u3084\u904e\u5ea6\u306a\u5358\u7d14\u5316\u306b\u5c0e\u304b\u308c\u306a\u304c\u3089\u9032\u3093\u3067\u304d\u307e\u3057\u305f\u3002\u30b9\u30d4\u30fc\u30ab\u30fc\u306b\u95a2\u3057\u3066\u3001\u3053\u308c\u307b\u3069\u8aa4\u89e3\u3055\u308c\u3066\u3044\u308b\u30c6\u30fc\u30de\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002 <strong>\u8010\u5165\u529b\u3068\u97f3\u91cf\u51fa\u529b<\/strong>. \u3002\u8aa4\u89e3\u306f\u3001\u4e0d\u9069\u5207\u306a\u8cfc\u5165\u5224\u65ad\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30df\u30b9\u30de\u30c3\u30c1\u3001\u3055\u3089\u306b\u306f\u6a5f\u5668\u306e\u640d\u50b7\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30a2\u30f3\u30d7\u51fa\u529b\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u611f\u5ea6\u3001\u77e5\u899a\u3055\u308c\u308b\u30e9\u30a6\u30c9\u30cd\u30b9\u306e\u80cc\u5f8c\u306b\u3042\u308b\u6280\u8853\u7684\u73fe\u5b9f\u3092\u89e3\u660e\u3057\u3001\u6839\u5f37\u3044\u8aa4\u89e3\u3068\u5de5\u5b66\u7684\u771f\u5b9f\u3092\u533a\u5225\u3057\u307e\u3059\u3002.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.zehsm.com\/wp-content\/uploads\/2026\/01\/JBL-1.5inch-speaker-8ohm-10w.jpg\" alt=\"JBL 1.5\u30a4\u30f3\u30c1\u30b9\u30d4\u30fc\u30ab\u30fc 8\u30aa\u30fc\u30e0 10W\" title=\"JBL 1.5\u30a4\u30f3\u30c1\u30b9\u30d4\u30fc\u30ab\u30fc 8\u30aa\u30fc\u30e0 10W\" class=\"wpauto-inline-image\" style=\"max-width: 100%;height: auto;margin: 20px auto\" \/><\/p>\n<h2>\u8aa4\u89e31\uff1a\u30ef\u30c3\u30c8\u6570\u304c\u5927\u304d\u3044\u307b\u3069\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u5e38\u306b\u5927\u304d\u3044\u97f3\u306b\u306a\u308b<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.zehsm.com\/wp-content\/uploads\/2026\/01\/Customized-Speaker.jpg\" alt=\"\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3055\u308c\u305f\u30b9\u30d4\u30fc\u30ab\u30fc\" title=\"\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3055\u308c\u305f\u30b9\u30d4\u30fc\u30ab\u30fc\" class=\"wpauto-inline-image\" style=\"max-width: 100%;height: auto;margin: 20px auto\" \/><\/p>\n<p>\u6700\u3082\u6839\u5f37\u3044\u4fe1\u5ff5\u306e\u4e00\u3064\u306f\u3001200\u30ef\u30c3\u30c8\u5b9a\u683c\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u306f100\u30ef\u30c3\u30c8\u30e2\u30c7\u30eb\u3088\u308a\u3082\u672c\u8cea\u7684\u306b\u5927\u304d\u3044\u97f3\u306b\u306a\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002. <strong>\u3053\u308c\u306f\u5371\u967a\u306a\u904e\u5ea6\u306a\u5358\u7d14\u5316\u3067\u3059\u3002.<\/strong> \u97f3\u5727\u30ec\u30d9\u30eb\uff08SPL\uff09\u3068\u3057\u3066\u77e5\u899a\u3055\u308c\u308b\u30e9\u30a6\u30c9\u30cd\u30b9\u306f\u3001\u4ee5\u4e0b\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u3063\u3066\u6c7a\u307e\u308a\u307e\u3059\u3002 <strong>\u30a2\u30f3\u30d7\u51fa\u529b<\/strong> \u305d\u3057\u3066 <strong>\u30b9\u30d4\u30fc\u30ab\u30fc\u611f\u5ea6<\/strong>.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.zehsm.com\/wp-content\/uploads\/2026\/01\/Customized-speaker-box.jpg\" alt=\"\u30aa\u30fc\u30c0\u30fc\u30e1\u30a4\u30c9\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u30dc\u30c3\u30af\u30b9\" title=\"\u30aa\u30fc\u30c0\u30fc\u30e1\u30a4\u30c9\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u30dc\u30c3\u30af\u30b9\" class=\"wpauto-inline-image\" style=\"max-width: 100%;height: auto;margin: 20px auto\" \/><\/p>\n<p>\u30b9\u30d4\u30fc\u30ab\u30fc\u611f\u5ea6\u306f\u30011\u30e1\u30fc\u30c8\u30eb\u306e\u8ddd\u96e2\u30671\u30ef\u30c3\u30c8\u306e\u96fb\u529b\u3067\u30c7\u30b7\u30d9\u30eb\uff08dB\uff09\u5358\u4f4d\u3067\u6e2c\u5b9a\u3055\u308c\u3001\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u4f8b\u3048\u3070\uff1a<\/p>\n<ul>\n<li>\u611f\u5ea692 dB\uff081W\/1m\uff09\u306e\u9ad8\u52b9\u7387\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u3001\u308f\u305a\u304b1\u30ef\u30c3\u30c8\u306792 dB\u306e\u97f3\u3092\u751f\u6210\u3057\u307e\u3059\u3002.<\/li>\n<li>\u30e9\u30a6\u30c9\u30cd\u30b9\u30923 dB\uff08\u3061\u3087\u3046\u3069\u77e5\u899a\u53ef\u80fd\u306a\u5dee\uff09\u4e0a\u3052\u308b\u306b\u306f\u3001 <strong>\u30a2\u30f3\u30d7\u51fa\u529b\u30922\u500d\u306b\u3059\u308b<\/strong>. \u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u300195 dB\u306b\u9054\u3059\u308b\u306b\u306f2\u30ef\u30c3\u30c8\u300198 dB\u306b\u306f4\u30ef\u30c3\u30c8\u3001\u3068\u3044\u3063\u305f\u5177\u5408\u3067\u3059\u3002.<\/li>\n<\/ul>\n<p>\u611f\u5ea6\u306e\u4f4e\u3044\u30b9\u30d4\u30fc\u30ab\u30fc\uff08\u4f8b\uff1a85 dB\uff09\u306f\u3001\u540c\u3058\u97f3\u91cf\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\u306f\u308b\u304b\u306b\u591a\u304f\u306e\u96fb\u529b\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u300294 dB\u306b\u9054\u3059\u308b\u3060\u3051\u3067\u30828\u30ef\u30c3\u30c8\u304c\u5fc5\u8981\u3067\u3042\u308a\u300192 dB\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u308f\u305a\u304b2\u30ef\u30c3\u30c8\u3067\u6e08\u307f\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u300150\u30ef\u30c3\u30c8\u306e\u30a2\u30f3\u30d7\u3067\u9ad8\u611f\u5ea6\u30b9\u30d4\u30fc\u30ab\u30fc\u3092\u99c6\u52d5\u3059\u308b\u65b9\u304c\u3001200\u30ef\u30c3\u30c8\u306e\u30a2\u30f3\u30d7\u3068\u975e\u52b9\u7387\u306a\u8a2d\u8a08\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3088\u308a\u3082\u3001\u3057\u3070\u3057\u3070\u512a\u308c\u305f\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong> \u611f\u5ea6\u5b9a\u683c\u3068\u51fa\u529b\u5b9a\u683c\u306f\u5e38\u306b\u7d44\u307f\u5408\u308f\u305b\u3066\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u9ad8\u611f\u5ea6\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u3001\u96fb\u6c17\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u97f3\u97ff\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u5909\u63db\u3059\u308b\u52b9\u7387\u304c\u9ad8\u3044\u3067\u3059\u3002.<\/p>\n<p><em>\u88681\uff1a1\u30e1\u30fc\u30c8\u30eb\u3067\u76ee\u6a19SPL\u306b\u9054\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u96fb\u529b<\/em><br \/>\n| \u30b9\u30d4\u30fc\u30ab\u30fc\u611f\u5ea6\uff08dB @ 1W\/1m\uff09 | SPL\u76ee\u6a19\uff1a95 dB | SPL\u76ee\u6a19\uff1a105 dB\uff08\u30e9\u30a4\u30d6\u30d0\u30f3\u30c9\u30ec\u30d9\u30eb\uff09 |<br \/>\n| :\u2014 | :\u2014 | :\u2014 |<br \/>\n| 85 dB\uff08\u4f4e\u52b9\u7387\uff09 | 10 \u30ef\u30c3\u30c8 | <strong>100 \u30ef\u30c3\u30c8<\/strong> |<br \/>\n| 88 dB\uff08\u5e73\u5747\u7684\u306a\u30d6\u30c3\u30af\u30b7\u30a7\u30eb\u30d5\uff09 | 5 \u30ef\u30c3\u30c8 | 50 \u30ef\u30c3\u30c8 |<br \/>\n| 92 dB\uff08\u9ad8\u52b9\u7387\uff09 | 2 \u30ef\u30c3\u30c8 | 20 \u30ef\u30c3\u30c8 |<br \/>\n| 96 dB\uff08\u30d7\u30ed\/\u30cf\u30a4\u30a8\u30f3\u30c9\u30db\u30fc\u30f3\uff09 | <strong>~1 \u30ef\u30c3\u30c8<\/strong> | 8 \u30ef\u30c3\u30c8 |<\/p>\n<h2>\u8aa4\u89e32\uff1a\u30d4\u30fc\u30af\u51fa\u529b\u3060\u3051\u304c\u91cd\u8981\u306a\u6570\u5024\u3067\u3042\u308b<\/h2>\n<p>\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u8cc7\u6599\u3067\u306f\u3001\u3057\u3070\u3057\u3070 <strong>PMPO\uff08\u30d4\u30fc\u30af\u97f3\u697d\u51fa\u529b\uff09<\/strong> \u3084\u5de8\u5927\u306a\u30d4\u30fc\u30af\u51fa\u529b\u6570\u5024\u304c\u5f37\u8abf\u3055\u308c\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306f\u5b9f\u969b\u306e\u6027\u80fd\u306b\u304a\u3044\u3066\u306f\u672c\u8cea\u7684\u306b\u7121\u610f\u5473\u3067\u3059\u3002\u306f\u308b\u304b\u306b\u91cd\u8981\u306a\u4ed5\u69d8\u306f <strong>RMS\uff08\u5b9f\u52b9\u5024\uff09\u51fa\u529b<\/strong>, \u3001\u5225\u540d\u9023\u7d9a\u51fa\u529b\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u304c\u51e6\u7406\u3067\u304d\u308b\u3001\u307e\u305f\u306f\u30a2\u30f3\u30d7\u304c\u6b6a\u307f\u3084\u640d\u50b7\u306a\u304f\u9577\u671f\u9593\u306b\u308f\u305f\u3063\u3066\u4f9b\u7d66\u3067\u304d\u308b\u4e00\u8cab\u3057\u305f\u96fb\u529b\u30ec\u30d9\u30eb\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002.<\/p>\n<p>2023\u5e74\u306eCTA-200-B\u898f\u683c\u306e\u66f4\u65b0\u306b\u3088\u308c\u3070\u3001\u4fe1\u983c\u3067\u304d\u308b\u30e1\u30fc\u30ab\u30fc\u306f\u3001\u30d4\u30f3\u30af\u30ce\u30a4\u30ba\u306a\u3069\u306e\u6a19\u6e96\u5316\u3055\u308c\u305f\u30c6\u30b9\u30c8\u30c8\u30fc\u30f3\u3092\u7528\u3044\u305f\u5b9f\u4e16\u754c\u306e\u30c6\u30b9\u30c8\u6761\u4ef6\u4e0b\u3067\u306e <strong>\u9023\u7d9a\u5e73\u5747\u51fa\u529b<\/strong> \u5b9a\u683c\u306b\u307e\u3059\u307e\u3059\u91cd\u70b9\u3092\u7f6e\u3044\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001 <strong>50\u30ef\u30c3\u30c8RMS<\/strong> \u5b9a\u683c\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u3001\u305d\u306e\u96fb\u529b\u3092\u7121\u671f\u9650\u306b\u51e6\u7406\u3067\u304d\u307e\u3059\u304c\u3001\u300c1000W PMPO\u300d\u5b9a\u683c\u306b\u306f\u6a19\u6e96\u30c6\u30b9\u30c8\u304c\u306a\u304f\u3001\u5b9f\u7528\u7684\u306a\u6307\u91dd\u3092\u63d0\u4f9b\u3057\u307e\u305b\u3093\u3002.<\/p>\n<p><strong>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong> PMPO\u306f\u7121\u8996\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30a2\u30f3\u30d7\u3068\u30b9\u30d4\u30fc\u30ab\u30fc\u306e\u4e21\u65b9\u3067\u3001\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u30af\u30ea\u30fc\u30f3\u306a\u6027\u80fd\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001RMS\u307e\u305f\u306f\u9023\u7d9a\u51fa\u529b\u5b9a\u683c\u306b\u57fa\u3065\u3044\u3066\u5224\u65ad\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h2>\u8aa4\u89e33\uff1a\u5927\u97f3\u91cf\u3067\u306f\u660e\u77ad\u6027\u3092\u7dad\u6301\u3067\u304d\u306a\u3044<\/h2>\n<p>\u591a\u304f\u306e\u4eba\u306f\u3001\u97f3\u91cf\u3092\u4e0a\u3052\u308b\u3068\u5fc5\u7136\u7684\u306b\u6b6a\u307f\u3084\u300c\u6fc1\u3063\u305f\u300d\u97f3\u306b\u306a\u308b\u3068\u4fe1\u3058\u3066\u3044\u307e\u3059\u3002\u4f4e\u54c1\u8cea\u306e\u6a5f\u5668\u306f\u78ba\u304b\u306b\u9650\u754c\u3067\u52a3\u5316\u3057\u307e\u3059\u304c\u3001\u672c\u5f53\u306e\u539f\u56e0\u306f <strong>clipping<\/strong> \u305d\u3057\u3066 <strong>\u71b1\u5727\u7e2e<\/strong>.<\/p>\n<ul>\n<li><strong>\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\uff1a<\/strong> \u3067\u3059\u3002\u30a2\u30f3\u30d7\u304cRMS\u51fa\u529b\u3092\u8d85\u3048\u3066\u99c6\u52d5\u3055\u308c\u308b\u3068\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u6ce2\u5f62\u304c\u300c\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u300d\u3055\u308c\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u306e\u30c4\u30a4\u30fc\u30bf\u30fc\u3092\u6587\u5b57\u901a\u308a\u713c\u304d\u5207\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u6b6a\u307f\u304c\u751f\u3058\u307e\u3059\u3002\u3053\u308c\u304c\u30b9\u30d4\u30fc\u30ab\u30fc\u6545\u969c\u306e\u4e3b\u306a\u539f\u56e0\u3067\u3059\u3002.<\/li>\n<li><strong>\u71b1\u5727\u7e2e\uff1a<\/strong> \u9577\u6642\u9593\u306e\u9ad8\u51fa\u529b\u4f7f\u7528\u4e2d\u306b\u30b9\u30d4\u30fc\u30ab\u30fc\u306e\u30dc\u30a4\u30b9\u30b3\u30a4\u30eb\u304c\u52a0\u71b1\u3059\u308b\u3068\u3001\u305d\u306e\u62b5\u6297\u304c\u5897\u52a0\u3057\u3001\u52b9\u7387\u3068\u51fa\u529b\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u97f3\u697d\u304c\u300c\u305f\u308b\u3093\u3060\u300d\u3088\u3046\u306b\u611f\u3058\u3089\u308c\u305f\u308a\u3001\u30c0\u30a4\u30ca\u30df\u30af\u30b9\u304c\u5931\u308f\u308c\u305f\u308a\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>\u9ad8\u54c1\u8cea\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001\u3053\u308c\u3089\u306e\u5f71\u97ff\u3092\u8efd\u6e1b\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30d9\u30ea\u30ea\u30a6\u30e0\u3084\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u30c4\u30a4\u30fc\u30bf\u30fc\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u3001\u9ad8\u5ea6\u306a\u30e2\u30fc\u30bf\u30fc\u69cb\u9020\u3001\u5805\u7262\u306a\u51b7\u5374\u8a2d\u8a08\u306a\u3069\u306e\u6700\u65b0\u7d20\u6750\u306b\u3088\u308a\u3001\u30d7\u30ec\u30df\u30a2\u30e0\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u9ad8SPL\u3067\u3082\u76f4\u7dda\u6027\u3068\u660e\u77ad\u6027\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002\u5341\u5206\u306a <strong>\u30d8\u30c3\u30c9\u30eb\u30fc\u30e0<\/strong> \uff08\u901a\u5e38\u306e\u30ea\u30b9\u30cb\u30f3\u30b0\u30ec\u30d9\u30eb\u3092\u8d85\u3048\u308b\u4f59\u5270\u96fb\u529b\uff09\u3092\u6301\u3064\u3001\u9069\u5207\u306b\u30de\u30c3\u30c1\u30f3\u30b0\u3055\u308c\u305f\u9ad8\u96fb\u6d41\u30a2\u30f3\u30d7\u306f\u3001\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u306a\u3057\u3067\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306a\u30d4\u30fc\u30af\u3092\u30af\u30ea\u30fc\u30f3\u306b\u4f9b\u7d66\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong> \u5927\u97f3\u91cf\u3067\u306e\u6b6a\u307f\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30df\u30b9\u30de\u30c3\u30c1\u3084\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u9650\u754c\u306e\u5146\u5019\u3067\u3042\u308a\u3001\u7d76\u5bfe\u7684\u306a\u30eb\u30fc\u30eb\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d8\u30c3\u30c9\u30eb\u30fc\u30e0\u3092\u5099\u3048\u305f\u9ad8\u54c1\u8cea\u306e\u30a2\u30f3\u30d7\u306b\u6295\u8cc7\u3059\u308b\u3053\u3068\u306f\u3001\u512a\u308c\u305f\u30b9\u30d4\u30fc\u30ab\u30fc\u3092\u9078\u3076\u3053\u3068\u3068\u540c\u3058\u304f\u3089\u3044\u91cd\u8981\u3067\u3059\u3002.<\/p>\n<h2>\u8aa4\u89e34\uff1a\u30c9\u30e9\u30a4\u30d0\u30fc\u304c\u5927\u304d\u3044\u307b\u3069\u3001\u81ea\u52d5\u7684\u306b\u4f4e\u97f3\u3068\u97f3\u91cf\u304c\u5411\u4e0a\u3059\u308b<\/h2>\n<p>12\u30a4\u30f3\u30c1\u30a6\u30fc\u30d5\u30a1\u30fc\u304c\u5e38\u306b8\u30a4\u30f3\u30c1\u3088\u308a\u512a\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u524d\u63d0\u306f\u8aa4\u308a\u3067\u3059\u3002\u4f4e\u97f3\u5fdc\u7b54\u3068\u51fa\u529b\u306f\u3001 <strong>\u30c9\u30e9\u30a4\u30d0\u30fc\u8a2d\u8a08\u3001\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u30bf\u30a4\u30d7\u3001\u304a\u3088\u3073\u30b7\u30b9\u30c6\u30e0\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/strong>.<\/p>\n<ul>\n<li><strong>\u30c9\u30e9\u30a4\u30d0\u30fc\u8a2d\u8a08\uff1a<\/strong> \u9ad8\u51fa\u529b\u30de\u30b0\u30cd\u30c3\u30c8\u3092\u5099\u3048\u305f\u9ad8\u632f\u5e45\u30fb\u30ed\u30f3\u30b0\u30b9\u30ed\u30fc\u30d7\u306e8\u30a4\u30f3\u30c1\u30c9\u30e9\u30a4\u30d0\u30fc\u306f\u3001\u53ef\u52d5\u57df\u304c\u9650\u3089\u308c\u305f\u8a2d\u8a08\u306e\u60aa\u304412\u30a4\u30f3\u30c1\u30c9\u30e9\u30a4\u30d0\u30fc\u3088\u308a\u3082\u3001\u3088\u308a\u591a\u304f\u306e\u7a7a\u6c17\u3092\u52d5\u304b\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff08\u6392\u6c17\u91cf = \u03c0 \u00d7 \u534a\u5f84\u00b2 \u00d7 \u632f\u5e45\uff09\u3002.<\/li>\n<li><strong>\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u30bf\u30a4\u30d7\uff1a<\/strong> \u9069\u5207\u306b\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3055\u308c\u305f\u30dd\u30fc\u30c8\u4ed8\u304d\uff08\u30d0\u30b9\u30ec\u30d5\uff09\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u306f\u3001\u540c\u4e00\u30c9\u30e9\u30a4\u30d0\u30fc\u306b\u304a\u3044\u3066\u5bc6\u9589\u8a2d\u8a08\u3068\u6bd4\u8f03\u3057\u3066\u4f4e\u5468\u6ce2\u51fa\u529b\u3068\u52b9\u7387\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6700\u65b0\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u8a2d\u8a08\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306f\u3001\u3053\u308c\u3089\u306e\u76f8\u4e92\u4f5c\u7528\u306e\u7cbe\u5bc6\u306a\u30e2\u30c7\u30ea\u30f3\u30b0\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u7d71\u5408:<\/strong> \u4f4e\u97f3\u306e\u77e5\u899a\u306f\u3001\u90e8\u5c4b\u306e\u97f3\u97ff\u7279\u6027\u306b\u3082\u5927\u304d\u304f\u5f71\u97ff\u3055\u308c\u307e\u3059\u3002\u9069\u5207\u306b\u914d\u7f6e\u3055\u308c\u305f\u5c0f\u578b\u30b9\u30d4\u30fc\u30ab\u30fc\u306f\u3001\u90e8\u5c4b\u306e\u30e2\u30fc\u30c9\u30ad\u30e3\u30f3\u30bb\u30ec\u30fc\u30b7\u30e7\u30f3\u306b\u60a9\u307e\u3055\u308c\u308b\u5927\u578b\u30b9\u30d4\u30fc\u30ab\u30fc\u3088\u308a\u3082\u3001\u6e80\u8db3\u5ea6\u304c\u9ad8\u304f\u6b63\u78ba\u306a\u4f4e\u97f3\u3092\u751f\u6210\u3067\u304d\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p><strong>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong> \u30c9\u30e9\u30a4\u30d0\u30fc\u30b5\u30a4\u30ba\u306f\u591a\u304f\u306e\u8981\u7d20\u306e\u3046\u3061\u306e\u4e00\u3064\u306b\u904e\u304e\u307e\u305b\u3093\u3002\u76f4\u5f84\u306e\u307f\u306b\u6ce8\u76ee\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5468\u6ce2\u6570\u7279\u6027\u3084\u4f4e\u57df\u62e1\u5f35\u6027\u306a\u3069\u306e\u4ed5\u69d8\u3092\u542b\u3080\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u8a2d\u8a08\u3092\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h2>\u795e\u8a715\uff1a\u3059\u3079\u3066\u306e\u30ef\u30c3\u30c8\u6570\u3068dB\u5b9a\u683c\u306f\u540c\u7b49\u3067\u3042\u308b<\/h2>\n<p>\u30aa\u30fc\u30c7\u30a3\u30aa\u696d\u754c\u306f\u3001\u4e00\u8cab\u6027\u306e\u306a\u3044\u6e2c\u5b9a\u57fa\u6e96\u306b\u9577\u5e74\u60a9\u307e\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002\u3042\u308b\u30d6\u30e9\u30f3\u30c9\u306e\u300c100\u30ef\u30c3\u30c8\u300d\u5b9a\u683c\u306f\u3001\u5225\u306e\u30d6\u30e9\u30f3\u30c9\u306e\u3082\u306e\u3068\u540c\u7b49\u3067\u306f\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u91cd\u8981\u306a\u5909\u6570\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9:<\/strong> \u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u534a\u5206\u306b\u306a\u308b\u3068\u96fb\u529b\u306f\u500d\u306b\u306a\u308a\u307e\u3059\uff08\u4f8b\uff1a8\u03a9\u3067100W\u306f4\u03a9\u3067\u7d04200W\uff09\u3002\u5b9a\u683c\u306f\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u660e\u793a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<li><strong>\u6b6a\u307f\u95be\u5024\uff08THD\uff09\uff1a<\/strong> \u96fb\u529b\u5b9a\u683c\u306f0.1% THD\u6642\u70b9\u304b\u3001\u305d\u308c\u3068\u308210% THD\u6642\u70b9\u304b\uff1f\u4fe1\u983c\u3067\u304d\u308b\u30d6\u30e9\u30f3\u30c9\u306f\u3001\u4f4e\u6b6a\u307f\u5e2f\u57df\u5185\uff08\u4f8b\uff1a&lt;0.05% THD\uff09\u3067\u96fb\u529b\u3092\u660e\u793a\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u5e2f\u57df\u5e45\uff1a<\/strong> \u5b9a\u683c\u306f\u30d5\u30eb20Hz-20kHz\u7bc4\u56f2\u304b\u3001\u305d\u308c\u3068\u30821kHz\u306e\u307f\u304b\uff1f<\/li>\n<li><strong>\u99c6\u52d5\u30c1\u30e3\u30f3\u30cd\u30eb\u6570\uff1a<\/strong> \u30a2\u30f3\u30d7\u306e\u5834\u5408\u3001\u5168\u30c1\u30e3\u30f3\u30cd\u30eb\u540c\u6642\u99c6\u52d5\u6642\u306b\u5b9a\u683c\u96fb\u529b\u3092\u4f9b\u7d66\u3067\u304d\u308b\u304b\uff1f<\/li>\n<\/ul>\n<p>Audio Science Review\u306a\u3069\u306e\u5a92\u4f53\u306b\u3088\u308b\u53b3\u683c\u306a\u30c6\u30b9\u30c8\u3067\u898b\u3089\u308c\u308b\u50be\u5411\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a <strong>FTC\u57fa\u6e96\u306e\u5b9a\u683c<\/strong> \u304c\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30d5\u30eb\u5e2f\u57df\u5e45\u3001\u5168\u30c1\u30e3\u30f3\u30cd\u30eb\u99c6\u52d5\u3001\u304a\u3088\u3073\u898f\u5b9a\u3055\u308c\u305f\u6b6a\u307f\u9650\u754c\u3092\u8981\u6c42\u3057\u3001\u6027\u80fd\u306e\u771f\u306e\u59ff\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong> \u96fb\u529b\u3084\u51fa\u529b\u5b9a\u683c\u306e\u80cc\u5f8c\u306b\u3042\u308b\u30c6\u30b9\u30c8\u6761\u4ef6\u3092\u7cbe\u67fb\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u610f\u5473\u306e\u3042\u308b\u6bd4\u8f03\u306e\u305f\u3081\u306b\u306f\u3001FTC\u3001CTA\u3001\u307e\u305f\u306fIEC\u898f\u683c\u3078\u306e\u6e96\u62e0\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h2>\u795e\u8a716\uff1a\u30c7\u30b8\u30bf\u30eb\u30a2\u30f3\u30d7\u306f\u30a2\u30ca\u30ed\u30b0\u30a2\u30f3\u30d7\u306e\u300c\u30d1\u30ef\u30fc\u300d\u306b\u6b20\u3051\u308b<\/h2>\n<p>Class-D\uff08\u30c7\u30b8\u30bf\u30eb\uff09\u30a2\u30f3\u30d7\u306e\u97f3\u304c\u300c\u8584\u3044\u300d\u3001\u307e\u305f\u306f\u99c6\u52d5\u304c\u96e3\u3057\u3044\u30b9\u30d4\u30fc\u30ab\u30fc\u3092\u6271\u3048\u306a\u3044\u3068\u3044\u3046\u795e\u8a71\u306f\u3001\u521d\u671f\u306e\u6027\u80fd\u306e\u60aa\u3044\u5b9f\u88c5\u304b\u3089\u7d9a\u3044\u3066\u3044\u307e\u3059\u3002\u9ad8\u5ea6\u306a\u5909\u8abf\u6280\u8853\u3068\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7\u3092\u7528\u3044\u305f\u6700\u65b0\u306eClass-D\u6280\u8853\u306f\u3001\u5287\u7684\u306b\u9032\u5316\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<ul>\n<li><strong>\u52b9\u7387\u3068\u96fb\u6d41\u4f9b\u7d66\u80fd\u529b\uff1a<\/strong> Class-D\u30a2\u30f3\u30d7\u306f80-95%\u306e\u52b9\u7387\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001\u5f93\u6765\u306eClass A\/B\u306f50-70%\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u5ec3\u71b1\u304c\u5c11\u306a\u304f\u3001\u8907\u96d1\u306a\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30b9\u30d4\u30fc\u30ab\u30fc\u8ca0\u8377\u306b\u5927\u96fb\u6d41\u3092\u4f9b\u7d66\u3067\u304d\u308b\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u8a2d\u8a08\u3092\u610f\u5473\u3057\u3001\u5236\u5fa1\u6027\u3068\u30c0\u30a4\u30ca\u30df\u30af\u30b9\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002.<\/li>\n<li><strong>\u6027\u80fd\u6307\u6a19\uff1a<\/strong> Purifi\u3084Hypex\u306a\u3069\u306e\u30d6\u30e9\u30f3\u30c9\u306b\u3088\u308b\u30c8\u30c3\u30d7\u30af\u30e9\u30b9\u306eClass-D\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u3001\u73fe\u5728\u3067\u306f\u6975\u3081\u3066\u4f4e\u3044\u6b6a\u307f\u3068\u30ce\u30a4\u30ba\u30d5\u30ed\u30a2\u3092\u9054\u6210\u3057\u3001\u5ba2\u89b3\u7684\u6e2c\u5b9a\u306b\u304a\u3044\u3066\u5f93\u6765\u8a2d\u8a08\u3092\u51cc\u99d5\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002.<\/li>\n<li><strong>\u5b9f\u969b\u306e\u63a1\u7528\u72b6\u6cc1\uff1a<\/strong> 2024\u5e74\u73fe\u5728\u3001Class-D\u306f\u30d7\u30ed\u30aa\u30fc\u30c7\u30a3\u30aa\u304a\u3088\u3073\u30a2\u30af\u30c6\u30a3\u30d6\u30b9\u30d4\u30fc\u30ab\u30fc\u5e02\u5834\u3092\u652f\u914d\u3057\u3066\u304a\u308a\u3001\u305d\u306e\u6027\u80fd\u3068\u74b0\u5883\u9762\u3067\u306e\u5229\u70b9\u304b\u3089\u30cf\u30a4\u30a8\u30f3\u30c9\u30db\u30fc\u30e0\u30aa\u30fc\u30c7\u30a3\u30aa\u3067\u3082\u6025\u901f\u306b\u666e\u53ca\u3057\u3066\u3044\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p><strong>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong> \u30a2\u30f3\u30d7\u306e\u30c8\u30dd\u30ed\u30b8\u30fc\uff08Class A\u3001A\/B\u3001D\u306a\u3069\uff09\u306f\u3001\u305d\u306e\u5b9f\u88c5\u307b\u3069\u91cd\u8981\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u9069\u5207\u306b\u8a2d\u8a08\u3055\u308c\u305f\u6700\u65b0\u306eClass-D\u30a2\u30f3\u30d7\u306f\u3001\u5353\u8d8a\u3057\u305f\u30d1\u30ef\u30fc\u3001\u5236\u5fa1\u6027\u3001\u304a\u3088\u3073\u5fe0\u5b9f\u5ea6\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h3>\u5c02\u9580\u5bb6\u306b\u3088\u308bQ&amp;A<\/h3>\n<p><strong>Q1\uff1a\u81ea\u5b85\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u306b\u306f\u3001\u5b9f\u969b\u306b\u3069\u308c\u304f\u3089\u3044\u306e\u30a2\u30f3\u30d7\u51fa\u529b\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/strong><br \/>\n<strong>A:<\/strong> \u5e73\u5747\u7684\u306a\u611f\u5ea6\uff0886-88 dB\uff09\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u3092\u4f7f\u7528\u3059\u308b\u4e00\u822c\u7684\u306a\u30ea\u30d3\u30f3\u30b0\u30eb\u30fc\u30e0\u3067\u306f\u3001 <strong>50\uff5e100\u30ef\u30c3\u30c8\/\u30c1\u30e3\u30f3\u30cd\u30eb\uff08RMS\u30018\u03a9\u6642\uff09<\/strong> \u306e\u30a2\u30f3\u30d7\u3067\u3001\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30d4\u30fc\u30af\u3092\u8003\u616e\u3057\u3066\u3082\u3001\u73fe\u5b9f\u7684\u306a\u97f3\u91cf\u3067\u306e\u30af\u30ea\u30fc\u30f3\u306a\u518d\u751f\u306b\u5341\u5206\u3067\u3059\u3002\u4f4e\u611f\u5ea6\u30b9\u30d4\u30fc\u30ab\u30fc\uff08&lt;84 dB\uff09\u3084\u5e83\u3044\u30ea\u30b9\u30cb\u30f3\u30b0\u30b9\u30da\u30fc\u30b9\u306e\u5834\u5408\u306f\u3001 <strong>150\u30ef\u30c3\u30c8\u4ee5\u4e0a<\/strong>. \u3092\u76ee\u6307\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u76ee\u6a19\u306f\u3001\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u5341\u5206\u306a <strong>\u30d8\u30c3\u30c9\u30eb\u30fc\u30e0<\/strong> \u4f59\u88d5\u3092\u6301\u3064\u3053\u3068\u3067\u3059\u3002.<\/p>\n<p><strong>Q2\uff1a\u5927\u97f3\u91cf\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u306a\u306e\u306f\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u611f\u5ea6\u3068\u30a2\u30f3\u30d7\u51fa\u529b\u306e\u3069\u3061\u3089\u3067\u3059\u304b\uff1f<\/strong><br \/>\n<strong>A:<\/strong> \u30b9\u30d4\u30fc\u30ab\u30fc\u611f\u5ea6\u304c\u4e3b\u8981\u306a\u30ec\u30d0\u30ec\u30c3\u30b8\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u611f\u5ea6\u30923 dB\u4e0a\u3052\u308b\u3053\u3068\u306f\u3001\u30a2\u30f3\u30d7\u51fa\u529b\u30922\u500d\u306b\u3059\u308b\u3053\u3068\u3068\u540c\u3058\u6700\u5927\u30e9\u30a6\u30c9\u30cd\u30b9\u52b9\u679c\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u63a7\u3048\u3081\u306a\u30a2\u30f3\u30d7\u3067\u6700\u5927\u51fa\u529b\u3092\u5f97\u308b\u306b\u306f\u3001\u9ad8\u611f\u5ea6\u30b9\u30d4\u30fc\u30ab\u30fc\uff0890 dB\u4ee5\u4e0a\uff09\u3092\u512a\u5148\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u56fa\u5b9a\u3055\u308c\u305f\u30b9\u30d4\u30fc\u30ab\u30fc\u306b\u5bfe\u3057\u3066\u306f\u3001\u305d\u306e\u5f8c\u3067\u9069\u5207\u306b\u5897\u5e45\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<p><strong>Q3\uff1a\u51fa\u529b\u4e0d\u8db3\u306e\u30a2\u30f3\u30d7\u306f\u30b9\u30d4\u30fc\u30ab\u30fc\u3092\u640d\u50b7\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/strong><br \/>\n<strong>A:<\/strong> \u306f\u3044\u3001\u9593\u9055\u3044\u306a\u304f\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u6545\u969c\u306e\u4e3b\u8981\u306a\u539f\u56e0\u3067\u3059\u3002\u51fa\u529b\u4e0d\u8db3\u306e\u30a2\u30f3\u30d7\u304c <strong>clipping<\/strong> \u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u72b6\u614b\u306b\u306a\u308b\u3068\u3001\u9ad8\u8abf\u6ce2\u6b6a\u307f\u304c\u767a\u751f\u3057\u3001\u30c4\u30a4\u30fc\u30bf\u30fc\u306b\u904e\u5270\u306a\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u9001\u3089\u308c\u3001\u904e\u71b1\u3057\u3066\u7834\u58ca\u3057\u307e\u3059\u3002\u5fc5\u8981\u3068\u601d\u308f\u308c\u308b\u3088\u308a\u3082\u30af\u30ea\u30fc\u30f3\u306a\u30d8\u30c3\u30c9\u30eb\u30fc\u30e0\u3092\u6301\u3064\u30a2\u30f3\u30d7\u3092\u4f7f\u7528\u3059\u308b\u65b9\u304c\u5b89\u5168\u3067\u3059\u3002.<\/p>\n<p><strong>Q4\uff1a\u30b9\u30d4\u30fc\u30ab\u30fc\u30b1\u30fc\u30d6\u30eb\u306e\u30b2\u30fc\u30b8\u3068\u54c1\u8cea\u306f\u3001\u96fb\u529b\u4f9b\u7d66\u3068\u97f3\u91cf\u306b\u5f71\u97ff\u3057\u307e\u3059\u304b\uff1f<\/strong><br \/>\n<strong>A:<\/strong> 50\u30d5\u30a3\u30fc\u30c8\u672a\u6e80\u306e\u4e00\u822c\u7684\u306a\u5bb6\u5ead\u5185\u914d\u7dda\u3067\u306f\u3001 <strong>16\u30b2\u30fc\u30b8<\/strong> \u306e\u7121\u9178\u7d20\u9285\u7dda\u3067\u5341\u5206\u3067\u3059\u3002\u3088\u308a\u9577\u3044\u914d\u7dda\u3001\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30b9\u30d4\u30fc\u30ab\u30fc\u3001\u307e\u305f\u306f\u975e\u5e38\u306b\u9ad8\u51fa\u529b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001, <strong>12\u307e\u305f\u306f14\u30b2\u30fc\u30b8<\/strong> \u306e\u30ef\u30a4\u30e4\u30fc\u304c\u62b5\u6297\u3092\u4f4e\u6e1b\u3057\u3001\u3088\u308a\u52b9\u7387\u7684\u306a\u96fb\u529b\u4f1d\u9001\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002\u30a8\u30ad\u30be\u30c1\u30c3\u30af\u306a\u30b1\u30fc\u30d6\u30eb\u306f\u96fb\u6c17\u7684\u306a\u5229\u70b9\u304c\u7121\u8996\u3067\u304d\u308b\u4e00\u65b9\u3067\u3001\u9069\u5207\u306a\u30b2\u30fc\u30b8\u306f\u771f\u306e\u6280\u8853\u7684\u8981\u4ef6\u3067\u3059\u3002.<\/p>\n<p><strong>Q5\uff1a\u90e8\u5c4b\u306e\u30b5\u30a4\u30ba\u306f\u3001\u77e5\u899a\u3055\u308c\u308b\u97f3\u91cf\u3068\u5fc5\u8981\u306a\u51fa\u529b\u306b\u3069\u306e\u3088\u3046\u306b\u5f71\u97ff\u3057\u307e\u3059\u304b\uff1f<\/strong><br \/>\n<strong>A:<\/strong> \u90e8\u5c4b\u306e\u97f3\u97ff\u7279\u6027\u306fSPL\u306b\u5287\u7684\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u97f3\u97ff\u30a8\u30cd\u30eb\u30ae\u30fc\u306f\u8ddd\u96e2\u3068\u3068\u3082\u306b\u6e1b\u8870\u3057\u3001\u90e8\u5c4b\u306e\u8868\u9762\u306f\u4f4e\u5468\u6ce2\u6570\u3092\u5f37\u5316\u307e\u305f\u306f\u6253\u3061\u6d88\u3059\u53cd\u5c04\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u5e83\u304f\u3066\u97f3\u97ff\u7684\u306b\u300c\u30c7\u30c3\u30c9\u300d\u306a\u90e8\u5c4b\u3067\u306f\u3001\u5c0f\u3055\u304f\u53cd\u5c04\u6027\u306e\u9ad8\u3044\u7a7a\u9593\u3068\u540c\u3058\u77e5\u899a\u30e9\u30a6\u30c9\u30cd\u30b9\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\u3001 <strong>4\u500d\u306e\u30a2\u30f3\u30d7\u51fa\u529b<\/strong> \u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4f4e\u97f3\u306e\u554f\u984c\u306b\u5bfe\u3057\u3066\u306f\u3001\u5358\u306b\u30a2\u30f3\u30d7\u306e\u30ef\u30c3\u30c8\u6570\u3092\u5897\u3084\u3059\u3088\u308a\u3082\u3001\u30eb\u30fc\u30e0\u88dc\u6b63DSP\u3084\u30b5\u30d6\u30a6\u30fc\u30d5\u30a1\u30fc\u306e\u65b9\u304c\u52b9\u679c\u7684\u306a\u89e3\u6c7a\u7b56\u3068\u306a\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>For decades, consumers have navigated the complex landscape of audio equipment, often guided by pervasive myths and oversimplifications. When it comes to loudspeakers, few topics are as misunderstood as power handling and volume output. Misconceptions can lead to poor purchasing decisions, system mismatches, and even damaged equipment. This guide demystifies the technical realities behind amplifier power, speaker sensitivity, and perceived loudness, separating enduring myths from engineering truths. Myth 1: More Watts Always Mean a Louder Speaker One of the most entrenched beliefs is that a speaker rated for 200 watts is inherently louder than a 100-watt model. This is a dangerous oversimplification. Loudness, perceived as sound pressure level (SPL), is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9283","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/comments?post=9283"}],"version-history":[{"count":1,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9283\/revisions"}],"predecessor-version":[{"id":9284,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9283\/revisions\/9284"}],"wp:attachment":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/media?parent=9283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/categories?post=9283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/tags?post=9283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}