{"id":9096,"date":"2026-01-23T07:55:49","date_gmt":"2026-01-23T07:55:49","guid":{"rendered":"https:\/\/www.zehsm.com\/?p=9096"},"modified":"2026-01-23T07:55:49","modified_gmt":"2026-01-23T07:55:49","slug":"%e5%85%ac%e5%85%b1%e6%94%be%e9%80%81%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%ab%e9%81%a9%e3%81%97%e3%81%9f%e3%82%aa%e3%83%bc%e3%83%87%e3%82%a3%e3%82%aa%e3%83%9b%e3%83%bc%e3%83%b3%e3%81%ae%e9%81%b8","status":"publish","type":"post","link":"https:\/\/www.zehsm.com\/ja\/how-to-choose-the-right-audio-horn-for-public-address-systems\/","title":{"rendered":"\u62e1\u58f0\u30b7\u30b9\u30c6\u30e0\u306b\u9069\u3057\u305f\u30aa\u30fc\u30c7\u30a3\u30aa\u30db\u30fc\u30f3\u306e\u9078\u3073\u65b9"},"content":{"rendered":"<p>\u516c\u5171\u653e\u9001\uff08PA\uff09\u30b7\u30b9\u30c6\u30e0\u306b\u9069\u3057\u305f\u30aa\u30fc\u30c7\u30a3\u30aa\u30db\u30fc\u30f3\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u306f\u3001\u6280\u8853\u4ed5\u69d8\u3068\u5b9f\u969b\u306e\u6027\u80fd\u3092\u7d50\u3073\u3064\u3051\u308b\u91cd\u8981\u306a\u5224\u65ad\u3067\u3059\u3002\u4e0d\u9069\u5207\u306a\u9078\u629e\u306f\u52b9\u7387\u4f4e\u4e0b\u3001\u660e\u77ad\u6027\u306e\u554f\u984c\u3001\u30ea\u30bd\u30fc\u30b9\u306e\u6d6a\u8cbb\u306b\u3064\u306a\u304c\u308b\u4e00\u65b9\u3001\u9069\u5207\u306a\u9078\u629e\u306f\u660e\u78ba\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u901a\u4fe1\u3092\u78ba\u4fdd\u3057\u3001\u99c5\u304b\u3089\u5de5\u5834\u306b\u81f3\u308b\u65bd\u8a2d\u306b\u304a\u3044\u3066\u5b89\u5168\u3001\u904b\u7528\u3001\u8a98\u5c0e\u306e\u305f\u3081\u306e\u91cd\u8981\u306a\u8981\u7d20\u3068\u306a\u308a\u307e\u3059\u3002\u672c\u30ac\u30a4\u30c9\u3067\u306f\u3001\u3042\u3089\u3086\u308b\u7528\u9014\u3067\u60c5\u5831\u306b\u57fa\u3065\u3044\u305f\u6c7a\u5b9a\u3092\u4e0b\u305b\u308b\u3088\u3046\u3001\u57fa\u672c\u539f\u5247\u3001\u6280\u8853\u30d1\u30e9\u30e1\u30fc\u30bf\u3001\u5b9f\u7528\u7684\u306a\u8003\u616e\u4e8b\u9805\u3092\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.zehsm.com\/wp-content\/uploads\/2026\/01\/28x28mm-4ohm-3w-loudspeaker-square.jpg\" alt=\"28\u00d728mm 4\u30aa\u30fc\u30e0 3W \u30b9\u30af\u30a8\u30a2\u578b\u30b9\u30d4\u30fc\u30ab\u30fc\" title=\"28\u00d728mm 4\u30aa\u30fc\u30e0 3W \u30b9\u30af\u30a8\u30a2\u578b\u30b9\u30d4\u30fc\u30ab\u30fc\" class=\"wpauto-inline-image\" style=\"max-width: 100%;height: auto;margin: 20px auto\" \/><\/p>\n<h2>\u30aa\u30fc\u30c7\u30a3\u30aa\u30db\u30fc\u30f3\u306e\u57fa\u672c\u6a5f\u80fd\u3068\u7a2e\u985e\u306e\u7406\u89e3<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.zehsm.com\/wp-content\/uploads\/2026\/01\/20x35mm-Built-in-mounting-hole-speaker-8ohm-1.5w.jpg\" alt=\"20x35mm \u30d3\u30eb\u30c8\u30a4\u30f3\u30de\u30a6\u30f3\u30c8\u30db\u30fc\u30eb\u30b9\u30d4\u30fc\u30ab\u30fc 8\u30aa\u30fc\u30e0 1.5w\" title=\"20x35mm \u30d3\u30eb\u30c8\u30a4\u30f3\u30de\u30a6\u30f3\u30c8\u30db\u30fc\u30eb\u30b9\u30d4\u30fc\u30ab\u30fc 8\u30aa\u30fc\u30e0 1.5w\" class=\"wpauto-inline-image\" style=\"max-width: 100%;height: auto;margin: 20px auto\" \/><\/p>\n<p>\u516c\u5171\u653e\u9001\u7528\u30db\u30fc\u30f3\u306f\u3001\u672c\u8cea\u7684\u306b\u306f\u30a2\u30f3\u30d7\u304b\u3089\u306e\u96fb\u6c17\u30aa\u30fc\u30c7\u30a3\u30aa\u4fe1\u53f7\u3092\u97f3\u97ff\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u5909\u63db\u3057\u3001\u9577\u8ddd\u96e2\u304b\u3064\u904e\u9177\u306a\u74b0\u5883\u3067\u3082\u97f3\u3092\u6295\u5c04\u3059\u308b\u30c8\u30e9\u30f3\u30b9\u30c7\u30e5\u30fc\u30b5\u3067\u3059\u3002\u97f3\u697d\u7528\u306e\u6a19\u6e96\u30b9\u30d4\u30fc\u30ab\u30fc\u3068\u306f\u7570\u306a\u308a\u3001\u30db\u30fc\u30f3\u306f\u4ee5\u4e0b\u306e\u305f\u3081\u306b\u6700\u9069\u5316\u3055\u308c\u3066\u3044\u307e\u3059\uff1a <strong>\u97f3\u58f0\u306e\u660e\u77ad\u6027<\/strong> \u305d\u3057\u3066 <strong>\u97f3\u306e\u6295\u5c04<\/strong>.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.zehsm.com\/wp-content\/uploads\/2026\/01\/20x30-built-in-small-speaker.jpg\" alt=\"20x30 \u30d3\u30eb\u30c8\u30a4\u30f3\u5c0f\u578b\u30b9\u30d4\u30fc\u30ab\u30fc\" title=\"20\u00d730 \u30d3\u30eb\u30c8\u30a4\u30f3\u5c0f\u578b\u30b9\u30d4\u30fc\u30ab\u30fc\" class=\"wpauto-inline-image\" style=\"max-width: 100%;height: auto;margin: 20px auto\" \/><\/p>\n<p>PA\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3055\u308c\u308b\u4e3b\u306a\u30db\u30fc\u30f3\u306e\u7a2e\u985e\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<ol>\n<li><strong>\u5b9a\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30db\u30fc\u30f3\uff1a<\/strong> \u5f93\u6765\u306f70V\u307e\u305f\u306f100V\u306e\u30a2\u30f3\u30d7\u51fa\u529b\u306b\u4e26\u5217\u63a5\u7d9a\u3055\u308c\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u30d9\u30fc\u30b9\u306e\u8a2d\u8a08\u306b\u3088\u308a\u3001\u30b7\u30f3\u30d7\u30eb\u3067\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u3001\u8907\u6570\u306e\u30db\u30fc\u30f3\u30921\u3064\u306e\u30a2\u30f3\u30d7\u30c1\u30e3\u30f3\u30cd\u30eb\u3067\u52d5\u4f5c\u3055\u305b\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u5e83\u57df\u30ab\u30d0\u30ec\u30c3\u30b8\u306e\u4e3b\u529b\u88fd\u54c1\u3067\u3059\u3002.<\/li>\n<li><strong>\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30db\u30fc\u30f3\uff088\u30aa\u30fc\u30e0\uff09\uff1a<\/strong> \u5f93\u6765\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u3068\u540c\u69d8\u306b\u6a5f\u80fd\u3057\u3001\u30a2\u30f3\u30d7\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u76f4\u63a5\u63a5\u7d9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u9ad8\u5fe0\u5b9f\u5ea6\u306e\u7528\u9014\u3084\u30e6\u30cb\u30c3\u30c8\u6570\u304c\u5c11\u306a\u3044\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u3001\u97f3\u8cea\u9762\u3067\u512a\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5927\u898f\u6a21\u306a\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u67d4\u8edf\u6027\u306b\u52a3\u308a\u307e\u3059\u3002.<\/li>\n<li><strong>\u30da\u30fc\u30b8\u30f3\u30b0\u30db\u30fc\u30f3 vs \u30b5\u30a6\u30f3\u30c9\u30d7\u30ed\u30b8\u30a7\u30af\u30bf\u30fc\uff1a<\/strong> \u30da\u30fc\u30b8\u30f3\u30b0\u30db\u30fc\u30f3\u306f\u4e00\u822c\u7684\u306b\u5c0f\u578b\u3067\u3001\u6307\u5411\u6027\u306e\u3042\u308b\u97f3\u3092\u51fa\u3059\u305f\u3081\u306b\u72ed\u3044\u62e1\u6563\u30d1\u30bf\u30fc\u30f3\u3092\u6301\u3061\u307e\u3059\u3002\u30b5\u30a6\u30f3\u30c9\u30d7\u30ed\u30b8\u30a7\u30af\u30bf\u30fc\u306f\u5927\u578b\u3067\u9ad8\u51fa\u529b\u306e\u30e6\u30cb\u30c3\u30c8\u3067\u3042\u308a\u3001\u77f3\u6cb9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3084\u9020\u8239\u6240\u306a\u3069\u3001\u6975\u5ea6\u306e\u8ddd\u96e2\u3068\u9ad8\u9a12\u97f3\u74b0\u5883\u5411\u3051\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/li>\n<\/ol>\n<p>\u3053\u308c\u3089\u306e\u7a2e\u985e\u306e\u9078\u629e\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306e\u57fa\u76e4\u3092\u5f62\u6210\u3057\u307e\u3059\u30022024\u5e74\u306b\u304a\u3044\u3066\u3001\u696d\u754c\u306e\u30c8\u30ec\u30f3\u30c9\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30aa\u30fc\u30c7\u30a3\u30aa over IP\uff08AoIP\uff09\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u79fb\u884c\u3092\u7d9a\u3051\u3066\u304a\u308a\u3001\u5f93\u6765\u306e\u30db\u30fc\u30f3\u3082\u30be\u30fc\u30f3\u3054\u3068\u306e\u5236\u5fa1\u3068\u76e3\u8996\u304c\u53ef\u80fd\u306a\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8\u3067\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u53ef\u80fd\u306a\u30a2\u30f3\u30d7\u306b\u3088\u3063\u3066\u99c6\u52d5\u3055\u308c\u3001\u30af\u30e9\u30b7\u30c3\u30af\u306a\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3068\u6700\u65b0\u306e\u30c7\u30b8\u30bf\u30eb\u7ba1\u7406\u304c\u878d\u5408\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h2>\u60c5\u5831\u306b\u57fa\u3065\u3044\u305f\u9078\u629e\u306e\u305f\u3081\u306e\u4e3b\u8981\u6280\u8853\u30d1\u30e9\u30e1\u30fc\u30bf<\/h2>\n<p>\u4ed5\u69d8\u66f8\u3092\u8aad\u307f\u89e3\u304f\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u8a55\u4fa1\u3059\u3079\u304d\u5fc5\u9808\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u611f\u5ea6\uff08dB SPL\u30011W\/1m\uff09\uff1a<\/strong> \u3053\u308c\u306f\u30011\u30ef\u30c3\u30c8\u306e\u5165\u529b\u96fb\u529b\u30671\u30e1\u30fc\u30c8\u30eb\u96e2\u308c\u305f\u5730\u70b9\u3067\u30db\u30fc\u30f3\u304c\u3069\u308c\u3060\u3051\u5927\u304d\u306a\u97f3\u3092\u51fa\u3059\u304b\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u611f\u5ea6\u304c\u9ad8\u3044\uff08\u4f8b\uff1a110 dB\uff09\u307b\u3069\u30db\u30fc\u30f3\u306f\u52b9\u7387\u7684\u3067\u3042\u308a\u3001\u5c11\u306a\u3044\u30a2\u30f3\u30d7\u96fb\u529b\u3067\u3088\u308a\u591a\u304f\u306e\u97f3\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u30a8\u30cd\u30eb\u30ae\u30fc\u52b9\u7387\u3068\u30a2\u30f3\u30d7\u30b3\u30b9\u30c8\u524a\u6e1b\u306b\u91cd\u8981\u3067\u3059\u3002.<\/li>\n<li><strong>\u8a31\u5bb9\u5165\u529b\uff08\u9023\u7d9a\/\u30d4\u30fc\u30af\uff09\uff1a<\/strong> \u30ef\u30c3\u30c8\u3067\u8868\u3055\u308c\u3001\u30db\u30fc\u30f3\u304c\u640d\u50b7\u306a\u304f\u9023\u7d9a\u3057\u3066\u51e6\u7406\u3067\u304d\u308b\u96fb\u529b\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u30a2\u30f3\u30d7\u306e\u51fa\u529b\u306b\u5408\u308f\u305b\u3066\u304f\u3060\u3055\u3044\u3002\u5b9a\u96fb\u5727\u30b7\u30b9\u30c6\u30e0\u306e\u5834\u5408\u3001\u30db\u30fc\u30f3\u306e\u30c8\u30e9\u30f3\u30b9\u306b\u305d\u306e\u8a2d\u7f6e\u5834\u6240\u306b\u5fc5\u8981\u306aSPL\u306b\u9069\u3057\u305f\u30ef\u30c3\u30c8\u6570\u30bf\u30c3\u30d7\uff08\u4f8b\uff1a5W\u300110W\u300120W\uff09\u304c\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<li><strong>\u6700\u5927\u97f3\u5727\u30ec\u30d9\u30eb\uff08\u6700\u5927SPL\uff09\uff1a<\/strong> \u30db\u30fc\u30f3\u304c\u751f\u6210\u3067\u304d\u308b\u7d76\u5bfe\u7684\u306a\u6700\u5927\u51fa\u529b\u3067\u3059\u3002\u3053\u306e\u6570\u5024\u306f\u3001\u30db\u30fc\u30f3\u304c\u5468\u56f2\u306e\u9a12\u97f3\u3092\u514b\u670d\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u5c4b\u5916\u306e\u5de5\u696d\u30a8\u30ea\u30a2\u3067\u306f\u3001120\uff5e130 dB\u4ee5\u4e0a\u306e\u6700\u5927SPL\u3092\u6301\u3064\u30db\u30fc\u30f3\u304c\u5fc5\u8981\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<li><strong>\u62e1\u6563\u30d1\u30bf\u30fc\u30f3\uff08\u30ab\u30d0\u30ec\u30c3\u30b8\u89d2\u5ea6\uff09\uff1a<\/strong> \u5ea6\u5358\u4f4d\uff08\u4f8b\uff1a90\u00b0H x 40\u00b0V\uff09\u3067\u793a\u3055\u308c\u3001\u97f3\u5834\u306e\u5f62\u72b6\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u5e83\u3044\u6c34\u5e73\u30d1\u30bf\u30fc\u30f3\u306f\u30b3\u30f3\u30b3\u30fc\u30b9\u306e\u3088\u3046\u306a\u5e83\u3044\u30a8\u30ea\u30a2\u3092\u30ab\u30d0\u30fc\u3057\u3001\u72ed\u3044\u30d1\u30bf\u30fc\u30f3\u306f\u6ed1\u8d70\u8def\u306b\u6cbf\u3063\u305f\u3088\u3046\u306a\u9577\u8ddd\u96e2\u306b\u308f\u305f\u3063\u3066\u97f3\u3092\u72ed\u3044\u30d3\u30fc\u30e0\u3067\u6295\u5c04\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u5468\u6ce2\u6570\u7279\u6027\uff1a<\/strong> \u97f3\u58f0\u306e\u660e\u77ad\u6027\u306b\u3068\u3063\u3066\u3001\u91cd\u8981\u306a\u7bc4\u56f2\u306f <strong>500 Hz \u304b\u3089 4,000 Hz<\/strong>. \u3067\u3059\u3002\u3053\u306e\u7bc4\u56f2\u3067\u8abf\u6574\u3055\u308c\u305f\u5fdc\u7b54\u3092\u6301\u3064\u30db\u30fc\u30f3\u306f\u3001\u5e83\u3044\u304c\u4e0d\u5747\u4e00\u306a\u5fdc\u7b54\u3092\u6301\u3064\u3082\u306e\u3088\u308a\u3082\u660e\u77ad\u306a\u97f3\u58f0\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u97f3\u697d\u518d\u751f\u306b\u306f\u3088\u308a\u5e83\u3044\u7bc4\u56f2\uff08\u4f8b\uff1a100 Hz \u2013 15,000 Hz\uff09\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/li>\n<li><strong>IP65\u304c\u6700\u4f4e\u9650\u3067\u3042\u308a<\/strong> \u3053\u308c\u306f\u74b0\u5883\u8010\u4e45\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002 <strong>IP65<\/strong> \u5b9a\u683c\u306f\u9632\u5875\u6027\u3068\u4f4e\u5727\u6c34\u6d41\u304b\u3089\u306e\u4fdd\u8b77\u3092\u793a\u3057\u3001\u307b\u3068\u3093\u3069\u306e\u5c4b\u5916\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002. <strong>IP66\/67<\/strong> \u306f\u3088\u308a\u5f37\u3044\u6c34\u6d41\u3084\u4e00\u6642\u7684\u306a\u6d78\u6c34\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u3001\u904e\u9177\u306a\u5de5\u696d\u74b0\u5883\u3084\u6d77\u6d0b\u74b0\u5883\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/li>\n<\/ul>\n<h2>\u74b0\u5883\u3068\u7528\u9014\u306b\u5408\u308f\u305b\u305f\u30db\u30fc\u30f3\u306e\u9078\u5b9a<\/h2>\n<p>\u74b0\u5883\u304c\u30db\u30fc\u30f3\u306b\u5fc5\u8981\u306a\u4ed5\u69d8\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u4e3b\u8981\u306a\u7528\u9014\u30ab\u30c6\u30b4\u30ea\u3092\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n<ul>\n<li><strong>\u5c4b\u5185\u5546\u696d\u65bd\u8a2d\uff08\u30aa\u30d5\u30a3\u30b9\u3001\u5c0f\u58f2\u5e97\u3001\u30a2\u30c8\u30ea\u30a6\u30e0\uff09\uff1a<\/strong> \u3053\u3053\u3067\u306f\u3001\u7f8e\u89b3\u3068\u5747\u4e00\u306a\u30ab\u30d0\u30ec\u30c3\u30b8\u304c\u91cd\u8981\u3067\u3059\u3002\u4f4e\u51fa\u529b\u3067\u62e1\u6563\u30d1\u30bf\u30fc\u30f3\u306e\u5e83\u3044\u30db\u30fc\u30f3\uff08\u591a\u304f\u306e\u5834\u5408\u767d\u8272\uff09\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u660e\u77ad\u6027\u304c\u9375\u3067\u3059\u304c\u3001\u6700\u5927SPL\u8981\u4ef6\u306f\u4f4e\u3081\uff0890\uff5e100 dB\uff09\u3067\u3059\u3002\u5efa\u7bc9\u7528\u30b9\u30d4\u30fc\u30ab\u30fc\u3084\u5c0f\u578b\u30db\u30fc\u30f3\u304c\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/li>\n<li><strong>\u4ea4\u901a\u30cf\u30d6\uff08\u7a7a\u6e2f\u3001\u99c5\uff09\uff1a<\/strong> \u4ea4\u901a\u30cf\u30d6\uff08\u99c5\u3001\u7a7a\u6e2f\u3001\u30d0\u30b9\u30bf\u30fc\u30df\u30ca\u30eb\uff09\uff1a.<\/li>\n<li><strong>\u3053\u308c\u3089\u306e\u7a7a\u9593\u306f\u3001\u5e83\u304f\u9a12\u304c\u3057\u3044\u5c4b\u5185\u30a8\u30ea\u30a2\u3068\u5c4b\u5916\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u307e\u3059\u3002\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3084\u30aa\u30fc\u30d7\u30f3\u30ac\u30ec\u30fc\u30b8\u306b\u306f\u9ad8SPL\u3067\u8010\u5019\u6027\u306e\u3042\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30bf\u30fc\u3001\u30b3\u30f3\u30b3\u30fc\u30b9\u306b\u306f\u512a\u308c\u305f\u660e\u77ad\u6027\u3092\u6301\u3064\u5206\u6563\u578b\u30db\u30fc\u30f3\u3068\u3044\u3063\u305f\u3001\u6df7\u5408\u304c\u5fc5\u8981\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u306f\u5927\u91cf\u901a\u77e5\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u7d71\u5408\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/strong> \u5de5\u696d\u30fb\u88fd\u9020\u696d\uff1a.<\/li>\n<li><strong>\u6700\u9ad8\u306e\u96e3\u6613\u5ea6\u3067\u3059\u3002\u6a5f\u68b0\u304b\u3089\u306e\u9ad8\u5468\u56f2\u9a12\u97f3\uff0885\uff5e110 dB\u4ee5\u4e0a\uff09\u306b\u306f\u3001\u975e\u5e38\u306b\u9ad8\u3044\u6700\u5927SPL\uff08125 dB\u4ee5\u4e0a\uff09\u3092\u6301\u3064\u30db\u30fc\u30f3\u304c\u5fc5\u8981\u3067\u3059\u3002\u307e\u305f\u3001\u6975\u3081\u3066\u5805\u7262\uff08\u9ad8\u3044IP\u5b9a\u683c\u3001\u591a\u304f\u306e\u5834\u5408\u8010\u8150\u98df\u6027\uff09\u3067\u3001\u4f4e\u5468\u6ce2\u306e\u8f5f\u97f3\u3092\u900f\u904e\u3067\u304d\u308b\u80fd\u529b\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u77f3\u6cb9\u5316\u5b66\u30d7\u30e9\u30f3\u30c8\u306e\u3088\u3046\u306a\u5371\u967a\u533a\u57df\u3067\u306f\u3001\u9632\u7206\u30db\u30fc\u30f3\uff08ATEX\/IECEx\u8a8d\u8a3c\u4ed8\u304d\uff09\u304c\u5fc5\u9808\u3067\u3059\u3002<\/strong> \u5c4b\u5916\u516c\u5171\u30b9\u30da\u30fc\u30b9\uff08\u30b9\u30bf\u30b8\u30a2\u30e0\u3001\u516c\u5712\u3001\u30ad\u30e3\u30f3\u30d1\u30b9\uff09\uff1a.<\/li>\n<\/ul>\n<p><strong>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30c7\u30fc\u30bf\uff1a<\/strong> \u30b9\u30d4\u30fc\u30ab\u30fc\u7d20\u6750\u306b\u95a2\u3059\u308b\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30ebQ&amp;A <strong>\u8010\u5019\u6027\uff08IP65\u4ee5\u4e0a\uff09\u304c\u6a19\u6e96\u3067\u3059\u3002\u30ab\u30d0\u30ec\u30c3\u30b8\u304c\u4e3b\u306a\u8ab2\u984c\u3067\u3042\u308a\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u30a8\u30ea\u30a2\u5168\u4f53\u3092\u30ab\u30d0\u30fc\u3057\u3064\u3064\u5883\u754c\u5916\u3078\u306e\u904e\u5ea6\u306a\u9a12\u97f3\u516c\u5bb3\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u614e\u91cd\u306b\u9078\u629e\u3055\u308c\u305f\u62e1\u6563\u30d1\u30bf\u30fc\u30f3\u3092\u6301\u3064\u30db\u30fc\u30f3\u3092\u6226\u7565\u7684\u306b\u914d\u7f6e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>, Frost &amp; Sullivan <strong>\u306b\u3088\u308b\u3068\u3001\u7523\u696d\u90e8\u9580\u306b\u304a\u3051\u308b<\/strong> \u5805\u7262\u3067\u9ad8\u51fa\u529b\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3078\u306e\u9700\u8981.<\/p>\n<h2>\u306f\u3001\u52b4\u50cd\u8005\u306e\u5b89\u5168\u3078\u306e\u95a2\u5fc3\u306e\u9ad8\u307e\u308a\u3068\u53ef\u8074\u8b66\u5831\u304a\u3088\u3073\u30a2\u30ca\u30a6\u30f3\u30b9\u306b\u95a2\u3059\u308b\u898f\u5236\u9075\u5b88\u306e\u53b3\u683c\u5316\u306b\u3088\u308a\u3001\u5e74\u5e73\u5747\u6210\u9577\u73877.2%\u3067\u6210\u9577\u3057\u3066\u3044\u307e\u3059\u3002<\/h2>\n<p>\u8a2d\u7f6e\u3068\u30b7\u30b9\u30c6\u30e0\u7d71\u5408\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8.<\/p>\n<ol>\n<li><strong>\u9078\u629e\u306f\u30db\u30fc\u30f3\u81ea\u4f53\u3067\u7d42\u308f\u308a\u307e\u305b\u3093\u3002\u9069\u5207\u306a\u7d71\u5408\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/strong> \u30a2\u30f3\u30d7\u306e\u30de\u30c3\u30c1\u30f3\u30b0\uff1a.<\/li>\n<li><strong>\u30a2\u30f3\u30d7\u306e\u30c1\u30e3\u30f3\u30cd\u30eb\u3042\u305f\u308a\u306e\u30ef\u30c3\u30c8\u6570\u51fa\u529b\u304c\u3001\u5b9a\u96fb\u5727\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u305d\u306e\u30e9\u30a4\u30f3\u4e0a\u306e\u5168\u30db\u30fc\u30f3\u306e\u30ef\u30c3\u30c8\u6570\u30bf\u30c3\u30d7\u5408\u8a08\u3068\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30db\u30fc\u30f3\u306e\u5834\u5408\u306f\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u4e00\u81f4\u3055\u305b\u3066\u304f\u3060\u3055\u3044\u3002\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u3092\u9632\u3050\u305f\u3081\u306b\u300120\uff5e30%\u306e\u30a2\u30f3\u30d7\u30d8\u30c3\u30c9\u30eb\u30fc\u30e0\u3092\u78ba\u4fdd\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong> \u8ad6\u7406\u7684\u306a\u97f3\u97ff\u30be\u30fc\u30f3\uff08\u4f8b\uff1a\u30d5\u30ed\u30a2\u5225\u3001\u5371\u967a\u30a8\u30ea\u30a2\u5225\u3001\u6a5f\u80fd\u5225\uff09\u3092\u8a2d\u8a08\u3059\u308b\u3053\u3068\u3002\u9069\u5207\u306a\u30b2\u30fc\u30b8\u306e\u30b9\u30d4\u30fc\u30ab\u30fc\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3057\u300170V\/100V\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u9577\u8ddd\u96e2\u914d\u7dda\u3067\u306f\u96fb\u5727\u964d\u4e0b\u3092\u8a08\u7b97\u3057\u3066\u6027\u80fd\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u3002\u6700\u65b0\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001AoIP\u7528\u306b\u30ab\u30c6\u30b4\u30ea\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3057\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u30c7\u30fc\u30bf\u3001\u96fb\u529b\u3001\u304a\u3088\u3073\u97f3\u58f0\u3092\u4f1d\u9001\u3059\u308b\u3002.<\/li>\n<li><strong>\u53d6\u308a\u4ed8\u3051\u3068\u6307\u5411\u8abf\u6574\uff1a<\/strong> \u30db\u30fc\u30f3\u3092\u5bfe\u8c61\u30a8\u30ea\u30a2\u306b\u52b9\u679c\u7684\u306b\u30ab\u30d0\u30fc\u3059\u308b\u3088\u3046\u914d\u7f6e\u3057\u3001\u6307\u5411\u30d1\u30bf\u30fc\u30f3\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u3002\u30ea\u30b9\u30ca\u30fc\u30be\u30fc\u30f3\u306b\u5411\u3051\u3066\u8abf\u6574\u3057\u3001\u58c1\u3084\u969c\u5bb3\u7269\u306b\u5411\u3051\u306a\u3044\u3053\u3068\u3002\u7279\u306b\u91cd\u91cf\u306e\u3042\u308b\u5c4b\u5916\u7528\u30d7\u30ed\u30b8\u30a7\u30af\u30bf\u30fc\u306e\u5834\u5408\u3001\u53d6\u308a\u4ed8\u3051\u91d1\u5177\u306f\u5805\u7262\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3002.<\/li>\n<li><strong>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3068\u898f\u683c\uff1a<\/strong> \u30b7\u30b9\u30c6\u30e0\u304c\u3001\u7dca\u6025\u97f3\u97ff\u30b7\u30b9\u30c6\u30e0\u306b\u95a2\u3059\u308b\u8a72\u5f53\u3059\u308b\u5730\u57df\u304a\u3088\u3073\u56fd\u969b\u898f\u683c\uff08\u4f8b\uff1a\u7c73\u56fd\u306eNFPA 72\u3001\u6b27\u5dde\u306eEN 54\uff09\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3002\u3053\u308c\u3089\u306e\u898f\u683c\u306f\u3001\u516c\u5171\u5efa\u7bc9\u7269\u306b\u304a\u3051\u308b\u6700\u4f4e\u97f3\u5727\u30ec\u30d9\u30eb\u3068\u660e\u77ad\u6027\u57fa\u6e96\u3092\u7fa9\u52d9\u4ed8\u3051\u3066\u3044\u308b\u3002.<\/li>\n<\/ol>\n<h2>\u4e00\u822c\u7684\u306a\u30b7\u30ca\u30ea\u30aa\u306b\u304a\u3051\u308b\u30db\u30fc\u30f3\u30bf\u30a4\u30d7\u306e\u6bd4\u8f03\u5206\u6790<\/h2>\n<p>\u4ee5\u4e0b\u306e\u8868\u306f\u3001\u5178\u578b\u7684\u306a\u4f7f\u7528\u4e8b\u4f8b\u306b\u5bfe\u3059\u308b\u30af\u30a4\u30c3\u30af\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u6bd4\u8f03\u3092\u63d0\u4f9b\u3059\u308b\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b7\u30ca\u30ea\u30aa<\/th>\n<th style=\"text-align: left\">\u63a8\u5968\u30db\u30fc\u30f3\u30bf\u30a4\u30d7<\/th>\n<th style=\"text-align: left\">\u512a\u5148\u3059\u3079\u304d\u4e3b\u8981\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n<th style=\"text-align: left\">\u6a19\u6e96\u7684\u306a\u96fb\u529b\u304a\u3088\u3073SPL\u8981\u4ef6<\/th>\n<th style=\"text-align: left\">\u5099\u8003<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left\"><strong>\u5009\u5eab\uff08\u5c4b\u5185\uff09<\/strong><\/td>\n<td style=\"text-align: left\">70V\u30b3\u30f3\u30d1\u30af\u30c8\u30da\u30fc\u30b8\u30f3\u30b0\u30db\u30fc\u30f3<\/td>\n<td style=\"text-align: left\">\u611f\u5ea6\u300190\u00b0\uff5e120\u00b0\u306e\u6307\u5411\u6027\u3001IP54\uff08\u9632\u5875\u30fb\u9632\u6ef4\uff09<\/td>\n<td style=\"text-align: left\">10\uff5e30W\u30bf\u30c3\u30d7\u3001\u6700\u5927SPL 105\uff5e115 dB<\/td>\n<td style=\"text-align: left\">\u9ad8\u6240\u306b\u53d6\u308a\u4ed8\u3051\u3001\u901a\u8def\u306b\u5411\u3051\u3066\u89d2\u5ea6\u3092\u4ed8\u3051\u308b\u3053\u3068\u3002\u97f3\u58f0\u306e\u4e2d\u97f3\u57df\u3092\u512a\u5148\u3059\u308b\u3053\u3068\u3002.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\"><strong>\u5de5\u5834\u30d5\u30ed\u30a2\uff08\u9a12\u97f3\u74b0\u5883\uff09<\/strong><\/td>\n<td style=\"text-align: left\">70V\/100V\u9ad8\u51fa\u529b\u30b5\u30a6\u30f3\u30c9\u30d7\u30ed\u30b8\u30a7\u30af\u30bf\u30fc<\/td>\n<td style=\"text-align: left\">\u6700\u5927SPL\uff08125 dB\u8d85\uff09\u3001\u8010\u4e45\u6027\uff08IP66\uff09\u3001\u5468\u6ce2\u6570\u7279\u6027\uff08\u4f4e\u57df\u30ce\u30a4\u30ba\u3092\u6253\u3061\u629c\u304f\uff09<\/td>\n<td style=\"text-align: left\">30\uff5e60W\u30bf\u30c3\u30d7\u3001\u6700\u5927SPL 125\uff5e135 dB<\/td>\n<td style=\"text-align: left\">\u591a\u304f\u306e\u5834\u5408\u3001\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u307e\u305f\u306f\u30dd\u30ea\u30ab\u30fc\u30dc\u30cd\u30fc\u30c8\u88fd\u3002\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u300c\u30b7\u30e3\u30a6\u30c8\u300d\u3092\u5099\u3048\u305f\u30db\u30fc\u30f3\u304c\u5fc5\u8981\u306a\u5834\u5408\u304c\u3042\u308b\u3002\u201c<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\"><strong>\u5b66\u6821\u30ad\u30e3\u30f3\u30d1\u30b9\uff08\u5c4b\u5916\uff09<\/strong><\/td>\n<td style=\"text-align: left\">70V\u8010\u5019\u6027\u30db\u30fc\u30f3<\/td>\n<td style=\"text-align: left\">\u8010\u5019\u6027\uff08IP65\uff09\u3001\u5e83\u6307\u5411\u6027\u3001\u7f8e\u89b3<\/td>\n<td style=\"text-align: left\">15\uff5e30W\u30bf\u30c3\u30d7\u3001\u6700\u5927SPL 110\uff5e120 dB<\/td>\n<td style=\"text-align: left\">\u5747\u4e00\u306a\u30ab\u30d0\u30ec\u30c3\u30b8\u306e\u305f\u3081\u306b\u8907\u6570\u30e6\u30cb\u30c3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3002\u9632\u72af\u6027\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u3002.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\"><strong>\u7a7a\u6e2f\u624b\u8377\u7269\u53d7\u53d6\u6240<\/strong><\/td>\n<td style=\"text-align: left\">70V\u5e83\u6307\u5411\u6027\u30db\u30fc\u30f3<\/td>\n<td style=\"text-align: left\">\u660e\u77ad\u6027\u3001\u5e83\u304f\u5747\u4e00\u306a\u30ab\u30d0\u30ec\u30c3\u30b8\uff08\u4f8b\uff1a90\u00b0\u00d790\u00b0\uff09\u3001\u7f8e\u89b3\u30c7\u30b6\u30a4\u30f3<\/td>\n<td style=\"text-align: left\">5\uff5e15W\u30bf\u30c3\u30d7\u3001\u6700\u5927SPL 100\uff5e110 dB<\/td>\n<td style=\"text-align: left\">\u9ad8\u5bc6\u5ea6\u5206\u6563\u578b\u30b7\u30b9\u30c6\u30e0\u306e\u4e00\u90e8\u3002\u5929\u4e95\u306b\u7d71\u5408\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3002.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\"><strong>\u5371\u967a\u30a8\u30ea\u30a2\uff08\u30be\u30fc\u30f31\uff09<\/strong><\/td>\n<td style=\"text-align: left\">\u8a8d\u5b9a\u9632\u7206\u30db\u30fc\u30f3<\/td>\n<td style=\"text-align: left\">ATEX\/IECEx\u8a8d\u8a3c\u3001\u6700\u5927SPL\u3001\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u307e\u305f\u306f\u771f\u936e\u88fd<\/td>\n<td style=\"text-align: left\">\u30b5\u30a4\u30c8\u5206\u985e\u306b\u5fdc\u3058\u3066\u3001\u975e\u5e38\u306b\u9ad8\u3044SPL<\/td>\n<td style=\"text-align: left\">\u5c02\u9580\u30e1\u30fc\u30ab\u30fc\u304b\u3089\u8abf\u9054\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u914d\u7dda\u306f\u8a8d\u5b9a\u3055\u308c\u305f\u30b3\u30f3\u30b8\u30c3\u30c8\u30b7\u30fc\u30eb\u3092\u4ecb\u3057\u3066\u884c\u3046\u3002.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>\u5c02\u9580\u5bb6\u306b\u3088\u308bQ&amp;A<\/h3>\n<p><strong>Q1: \u660e\u77ad\u306a\u660e\u77ad\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u30db\u30fc\u30f3\u306f\u5468\u56f2\u30ce\u30a4\u30ba\u3088\u308a\u3069\u308c\u3060\u3051\u5927\u304d\u304f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u304b\uff1f<\/strong><br \/>\n<strong>A:<\/strong> \u4e00\u822c\u7684\u306a\u5de5\u5b66\u7684\u30eb\u30fc\u30eb\u3068\u3057\u3066\u3001\u826f\u597d\u306a\u97f3\u58f0\u660e\u77ad\u6027\u3092\u5f97\u308b\u305f\u3081\u306b\u306f\u3001\u30db\u30fc\u30f3\u306e\u51fa\u529b\u306f\u30ea\u30b9\u30ca\u30fc\u306e\u4f4d\u7f6e\u3067\u6e2c\u5b9a\u3055\u308c\u305f\u5468\u56f2\u30ce\u30a4\u30ba\u30ec\u30d9\u30eb\uff08Leq\uff09\u3088\u308a <strong>\u5c11\u306a\u304f\u3068\u308210\uff5e15 dB\u9ad8\u3044\u5fc5\u8981\u304c\u3042\u308b\u3002\u975e\u5e38\u306b\u9a12\u304c\u3057\u3044\u74b0\u5883\uff08\u4f8b\uff1a\u5468\u56f2100 dB\uff09\u3067\u306f\u3001115 dB SPL\u4ee5\u4e0a\u306e\u30db\u30fc\u30f3\u304c\u5fc5\u8981\u3068\u306a\u308b\u3002\u9ad8\u5ea6\u306a\u8a2d\u8a08\u3067\u306f\u3001\u30b9\u30da\u30af\u30c8\u30eb\u6574\u5f62\u3082\u4f7f\u7528\u3055\u308c\u3001\u4eba\u9593\u306e\u8033\u304c\u97f3\u58f0\u306e\u624b\u304c\u304b\u308a\u306b\u6700\u3082\u654f\u611f\u306a2\uff5e4 kHz\u5e2f\u57df\u3092\u5f37\u8abf\u3059\u308b\u3053\u3068\u3067\u3001\u5358\u306b\u5168\u4f53\u306e\u97f3\u91cf\u3092\u4e0a\u3052\u308b\u3060\u3051\u3067\u306a\u304f\u660e\u77ad\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002<\/strong> Q2: \u5358\u4e00\u306e70V\u30a2\u30f3\u30d7\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u591a\u6570\u306e\u30db\u30fc\u30f3\u3092\u30c7\u30a4\u30b8\u30fc\u30c1\u30a7\u30fc\u30f3\u63a5\u7d9a\u3059\u308b\u5834\u5408\u306e\u4e3b\u306a\u6b20\u70b9\u306f\u4f55\u304b\uff1f.<\/p>\n<p><strong>\u4e3b\u306a\u30ea\u30b9\u30af\u306f\u30a2\u30f3\u30d7\u306e\u904e\u8ca0\u8377\u3067\u3042\u308b\u3002\u30c8\u30e9\u30f3\u30b9\u30bf\u30c3\u30d7\u306b\u3088\u308a\u8ca0\u8377\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u4f4e\u304f\u306a\u308a\u3059\u304e\u308b\u306e\u3092\u9632\u3050\u304c\u3001<\/strong><br \/>\n<strong>A:<\/strong> \u3059\u3079\u3066\u306e\u30bf\u30c3\u30d7\u8a2d\u5b9a\u306e\u5408\u8a08\u30ef\u30c3\u30c8\u6570 <strong>\u306f\u3001\u305d\u306e\u30c1\u30e3\u30f3\u30cd\u30eb\u306e\u30a2\u30f3\u30d7\u306e\u9023\u7d9a\u30ef\u30c3\u30c8\u6570\u51fa\u529b\u3092\u8d85\u3048\u3066\u306f\u306a\u3089\u306a\u3044\u3002\u3053\u308c\u3092\u8d85\u3048\u308b\u3068\u3001\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u3001\u6b6a\u307f\u3001\u304a\u3088\u3073\u30a2\u30f3\u30d7\u306e\u6545\u969c\u306e\u53ef\u80fd\u6027\u304c\u751f\u3058\u308b\u3002\u6b21\u306b\u30011\u3064\u306e\u30db\u30fc\u30f3\u304c\u6545\u969c\u3057\u305f\u5834\u5408\uff08\u4f8b\uff1a\u30c8\u30e9\u30f3\u30b9\u306e\u30b7\u30e7\u30fc\u30c8\uff09\u3001\u56de\u8def\u5168\u4f53\u304c\u30c0\u30a6\u30f3\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u9069\u5207\u306a\u30be\u30fc\u30cb\u30f3\u30b0\u3068\u500b\u5225\u306e\u30a2\u30f3\u30d7\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u3088\u308a\u3001\u4e21\u65b9\u306e\u30ea\u30b9\u30af\u304c\u8efd\u6e1b\u3055\u308c\u308b\u3002<\/strong> Q3: IP\u30d9\u30fc\u30b9\u306e\u97f3\u97ff\u30b7\u30b9\u30c6\u30e0\u306e\u53f0\u982d\u306b\u4f34\u3044\u3001\u5f93\u6765\u306e70V\u30db\u30fc\u30f3\u306f\u6642\u4ee3\u9045\u308c\u306b\u306a\u308a\u3064\u3064\u3042\u308b\u304b\uff1f.<\/p>\n<p><strong>\u5168\u304f\u305d\u3046\u3067\u306f\u306a\u3044\u3002PA\u30b7\u30b9\u30c6\u30e0\u306e\u300c\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u300d\u306f\u3001\u5236\u5fa1\u3068\u4fe1\u53f7\u914d\u4fe1\u306e\u305f\u3081\u306bAoIP\uff08\u4f8b\uff1aDante\uff09\u3092\u7528\u3044\u3066\u6025\u901f\u306b\u30c7\u30b8\u30bf\u30eb\u5316\u3057\u3066\u3044\u308b\u3002\u3057\u304b\u3057\u3001\u300c\u30e9\u30b9\u30c8\u30de\u30a4\u30eb\u300d\u3001\u3059\u306a\u308f\u3061\u30a2\u30f3\u30d7\u3068\u30db\u30fc\u30f3\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u30a2\u30ca\u30ed\u30b0\u306e\u307e\u307e\u3067\u3042\u308b\u3002\u6700\u65b0\u306e\u300c\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8\u300d\u30a2\u30f3\u30d7\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30aa\u30fc\u30c7\u30a3\u30aa\u3092\u53d7\u3051\u5165\u308c\u3001\u30c7\u30b8\u30bf\u30eb\u5236\u5fa1\u3001\u76e3\u8996\u3001\u30be\u30fc\u30cb\u30f3\u30b0\u306e\u5229\u70b9\u3092\u63d0\u4f9b\u3057\u306a\u304c\u3089\u3001\u5f93\u6765\u306e\u5805\u7262\u3067\u30b3\u30b9\u30c8\u52b9\u7387\u306e\u9ad8\u3044\u30db\u30fc\u30f3\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u6a19\u6e96\u306e70V\/100V\u4fe1\u53f7\u3092\u51fa\u529b\u3059\u308b\u3002\u30db\u30fc\u30f3\u81ea\u4f53\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u4fe1\u53f7\u3060\u3051\u3067\u306f\u672c\u8cea\u7684\u306a\u5229\u70b9\u304c\u306a\u3044\u97f3\u97ff\u6295\u5c04\u3068\u3044\u3046\u7269\u7406\u7684\u30bf\u30b9\u30af\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u307e\u307e\u3067\u3042\u308b\u3002<\/strong><br \/>\n<strong>A:<\/strong> Q4: \u8150\u98df\u6027\u306e\u6d77\u6d0b\u74b0\u5883\u3084\u5316\u5b66\u74b0\u5883\u3067\u6a19\u6e96\u7684\u306a\u5c4b\u5916\u30db\u30fc\u30f3\u3092\u4f7f\u7528\u3067\u304d\u308b\u304b\uff1f.<\/p>\n<p><strong>\u3067\u304d\u306a\u3044\u3002\u6a19\u6e96\u7684\u306a\u8010\u5019\u6027\uff08IP66\uff09\u30db\u30fc\u30f3\u306b\u306f\u3001\u6025\u901f\u306b\u8150\u98df\u3059\u308b\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u307e\u305f\u306f\u92fc\u9244\u90e8\u54c1\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u3053\u308c\u3089\u306e\u74b0\u5883\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u6750\u6599\u3067\u69cb\u6210\u3055\u308c\u305f\u30db\u30fc\u30f3\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/strong><br \/>\n<strong>A:<\/strong> \u6d77\u6d0b\u30b0\u30ec\u30fc\u30c9\u306e\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\uff08\u4f8b\uff1a316L\uff09 <strong>\u8010\u885d\u6483\u6027\u3001UV\u5b89\u5b9a\u6027\u30dd\u30ea\u30de\u30fc<\/strong> \u307e\u305f\u306f <strong>high-impact, UV-stable polymers<\/strong> \u30dd\u30ea\u30ab\u30fc\u30dc\u30cd\u30fc\u30c8\u3068\u540c\u69d8\u306b\u3001\u3059\u3079\u3066\u306e\u91d1\u5177\uff08\u30cd\u30b8\u3001\u30ac\u30b9\u30b1\u30c3\u30c8\uff09\u306f\u3001\u5b58\u5728\u3059\u308b\u7279\u5b9a\u306e\u8150\u98df\u6027\u85ac\u5264\u306b\u5bfe\u5fdc\u3057\u305f\u5b9a\u683c\u306e\u3082\u306e\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3002\u8010\u85ac\u54c1\u6027\u306b\u3064\u3044\u3066\u306f\u3001\u5fc5\u305a\u30e1\u30fc\u30ab\u30fc\u306e\u4ed5\u69d8\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>Choosing the correct audio horn for a public address (PA) system is a critical decision that bridges technical specifications with real-world performance. A poor selection can lead to inefficiency, intelligibility issues, and wasted resources, while the right choice ensures clear, reliable communication\u2014a vital component for safety, operations, and guidance in venues from train stations to industrial plants. This guide delves into the core principles, technical parameters, and practical considerations to empower you to make an informed decision for any application. Understanding the Core Function and Types of Audio Horns At its heart, a public address horn is a transducer designed to convert electrical audio signals from an amplifier into acoustic [&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-9096","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9096","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=9096"}],"version-history":[{"count":1,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9096\/revisions"}],"predecessor-version":[{"id":9097,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9096\/revisions\/9097"}],"wp:attachment":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/media?parent=9096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/categories?post=9096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/tags?post=9096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}