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旧 Nov 18th, 2011, 07:53     #1
jianghy
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当然喇叭更重要. 没有箱体喇叭照样出声. 没有喇叭的箱体能发声吗?
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旧 Nov 20th, 2011, 12:55     #2
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作者: lighting 查看帖子
这些上万的箱子,声音是悦耳的,没问题,样子是时髦,Luxury 的,但Clarity 和 声场 并不能保证。

这箱子市场滥竽充数的太多,很多只是以高价唬住顾客。其中本地的 Paradigm 做的不错,无论式样 和 音质。

像 Monitor 7 现在只卖 $599, Monitor 11...
有个问题很困惑. 现在很多音箱的高音单元指标非常高, 动不动达到30kHz以上. 象Paradigm的Signature S2, 轴向频响达45kHz(+-2dB)! 这有实际意义吗? 人又不是蝙蝠!
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旧 Nov 20th, 2011, 17:43     #3
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作者: 老广 查看帖子
晕,还有这种低级错误。任何音乐信号都不是纯的正弦波,高次谐波的是信号重现的根本。你把一个7K的方波信号输入给20KHZ带宽的放大器看看输出还是不是方波。
管它正弦波还是音乐的高次谐波, 问题是频率高于22kHz的信号人能够感知吗? 我知道除了基频之外, 各种乐器的声音含有丰富的高次谐波, 但高于22kHz的谐波如果不被人耳感知, 还有何意义?

此帖于 Nov 20th, 2011 18:24 被 jianghy 编辑。
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旧 Nov 20th, 2011, 18:11     #4
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作者: 食指 查看帖子
高音靠喇叭,低音靠箱子。

低音不好弄啊,并不是简单的增加箱体容积,加固箱体等就可以解决的。顶级音箱买的就是设计费,因为厂家知道业余条件下很难做到大箱体、多喇叭的系统设计。
低频的重放更重要的是听音环境.

此帖于 Nov 20th, 2011 18:32 被 jianghy 编辑。
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旧 Nov 20th, 2011, 18:31     #5
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作者: lighting 查看帖子
这个问题,我做过一个是实验,给系统一个22K 的纯正玄波, 你是不是听不到?

然后我增大音量,然后听到了。这就是 tweeter 不能 Handle 高功率 22K 的,产生的失真声音,


Tweeter 没有能力重播20K 以上的,就纯播放20K以下的,能播45khz 的,就需同时播放2K 到...
你听到的失真声音肯定是你耳朵能感知的频率, 而不会是高于22kHz的谐波.
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旧 Nov 20th, 2011, 20:38     #6
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作者: 有门! 查看帖子
你和老广说的都有一定道理,至少我不反对你们中的任何一方。老广强调的是超高频会组成人耳可以完全听的到的低频谐波,没有超高频将会丧失这些应该存在的可听信息,所以有超高频特性对真实还原声音有优势。而你强调的是有了超高频会带来一定的失真,如果切除掉会避免因强调耳朵听不到的超高频声音而带来的噪音。所以你们一个...
这个不懂, 还请明示.
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旧 Nov 20th, 2011, 20:47     #7
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好象还没有那种乐器的基频/基音超过20kHz的, 而且泛音(谐波)的频率都比基音频率高.
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旧 Nov 20th, 2011, 20:49     #8
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作者: lighting 查看帖子
这里有个问题可以探讨。

老广和你都认为,切掉了20k 以上的主波,就丧失了低频谐波,在乐器发声时是这样的,但录制时,切掉主波,并没有丧失谐波。谐波还是被录制了下来,这和人耳朵听不到主波,但听得到低的谐波是一个道理。
20k以上没有主波. 全是泛音或噪音.
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旧 Nov 20th, 2011, 21:47     #9
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作者: sgyyz 查看帖子
用超高音改變CD聽感(音響的味精,聲波之整形,體驗真聲聽感)
http://www.hiendy.com/hififorum/foru...read&tid=23144 ("http://www.hiendy.com/hififorum/forum.php?mod=vie...
看了两页, 没兴趣看下去了. 那个"天下第一刀"不是地球人: tweeter移动几豪米他能听出区别!!
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旧 Nov 21st, 2011, 20:07     #10
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作者: 千金顶 查看帖子
准备搞双12寸3.5way,分频器准备重新设计,铁芯电感要换成空心的,估计有5磅。箱体也有大改动...
用空心电感的话, 估计分频器要放箱外了.
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旧 Nov 23rd, 2011, 12:35     #11
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作者: 有门! 查看帖子
你好像根本没听CD版的。有区别主要在于录制,并不在于是CD还是SACD。我也可以举出CD版好过SACD的例子的。但我不会象你因此得出“效果真好,SACD永远达不到。" 这样的结论的。
老广属于偏食的
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旧 Nov 24th, 2011, 21:27     #12
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我是OPEN MIND的,我并不反对说SACD要好过CD,我始终认为差距并不是仅仅来自CD的高频缺陷,事实也是大量存在版本差别,所以声音好坏就不能单单说或者简单地说成是CD还是SACD载体的问题,SACD烂片子我有好几张,其中包括那张不如CD的LIVING STEREO。更夸张的是老广说听了两天的唱...
老广说过他的耳朵只能听到12kHz, 却对高频, 超高频特敏感. 这点我特别感到困惑.
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