20厘米喇叭是全频的吗 全频喇叭好不好？
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1\u3001\u5168\u9891\u5587\u53ed\u662f\u6307\u9891\u7387\u7684\u8303\u56f4\u5bbd\uff0c\u8986\u76d6\u9762\u5e7f\uff0c\u4ee5\u524d\u7684\u5168\u9891\u5587\u53ed\u6db5\u76d6\u7684\u9891\u7387\u8303\u56f4\u662f200\u201410000Hz\uff0c\u8fd1\u5e74\u6765\u968f\u7740\u58f0\u5b66\u6280\u672f\u4e0d\u65ad\u5f97\u5230\u8fdb\u6b65\uff0c\u73b0\u5728\u4e00\u822c\u7684\u5168\u9891\u5587\u53ed\u90fd\u53ef\u4ee5\u8fbe\u523050\u201425000Hz\u7684\u9891\u7387\u8303\u56f4\uff0c\u6709\u4e9b\u97f3\u7bb1\u7684\u4f4e\u9891\u53ef\u4ee5\u4e0b\u6f5c\u81f330Hz\u3002\u542c\u5230\u7684\u58f0\u97f3\u6bd4\u8f83\u5e73\u9762\uff0c\u7acb\u4f53\u611f\u6ca1\u6709\u90a3\u4e48\u5f3a\u3002
2\u3001\u5206\u9891\u97f3\u7bb1\u7684\u6784\u9020\u6bd4\u8f83\u590d\u6742\uff0c\u5587\u53ed\u6570\u91cf\u591a\uff0c\u91cc\u9762\u8bbe\u7f6e\u6709\u72ec\u7279\u7684\u5206\u9891\u5668\u3002\u5206\u9891\u5587\u53ed\u7684\u9891\u7387\u66f4\u6709\u4fa7\u91cd\u70b9\uff0c\u80fd\u591f\u4f7f\u9ad8\u4f4e\u97f3\u7684\u5ef6\u4f38\u66f4\u5bbd\uff0c\u56e0\u800c\u901a\u5e38\u80fd\u591f\u8986\u76d6\u5230\u6bd4\u5168\u9891\u5587\u53ed\u66f4\u5e7f\u7684\u9891\u7387\u8303\u56f4\u3002\u4f46\u662f\u58f0\u97f3\u7684\u97f3\u573a\u6ca1\u6709\u90a3\u4e48\u7eaf\u51c0\uff0c\u6574\u4f53\u7684\u97f3\u8272\u4e5f\u4f1a\u53d1\u751f\u504f\u5dee\u3002
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20公分就是8寸喇叭，一般都是低中音橡皮边喇叭，功率30瓦以上。只有飞乐纸盆纸边8寸喇叭，功率只有5瓦，就是全频喇叭。
3寸小口径喇叭，全频喇叭多一点。
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