驻波问题求助 [复制链接]

阿邓 在 2004-2-28 11:24:51 发表的内容 经madog兄指点后，重起兄的系统有什么改善的地方？

嘿嘿谢阿邓兄关心，近来工作较忙，器材和环境没做任何改动，深夜能用小音量听半小时就觉很幸福了，可能还要持续两三个月。

不过已有计划，先对后墙作像Viola试音室那样的处理，用吸音材料放在邓兄指示的位置，因除了驻波外也发现有部分高频段有飘移，最终在墙角作低音陷阱。线材暂时不打算换，怕损失动态和低频。

一个计算低频陷阱/吸音材料（商品）的网站，给大家参考。
http://www.rivesaudio.com/PARCcalc.html

madog 在 2004-2-16 23:39:11 发表的内容 [OK, tell me your ceiling height as well. Better still tell me your models of equipments and cables. etc. I'll let you know tomorrow. Got to go to bed.

Ceiling height is around 2.5m

CD player: Marantz CD6000 OSE
Int tube Amp: Mei-xing 3008 AB (300B driving 805 single end 40W x 2)
Speakers: Harberth HL-Compact
Interconnect cable: Audioquest Diamondback
Spk cable: Das Monitor copper 5.0mm bi-wiring

Have a good sleep, let music be in your dreams.

Thanks again buddy. My spks are shown as the 2 black squares at top of the layout. The original sitting position is indicated as the brown box, now a tad (~1ft) closer to the speakers.
[upload=jpg]uploadImages/20042161557448115.jpg[/upload]

The very LF is not a problem as my tube amp is not very capable of producing deep base. It's the resonance of the mid that is really bothering. I'll try base traps if they are the ultimate solutions, but it will be a lengthy process --- not very good at wood work      

BTW, Celestion 3 has nothing to do with this problem, as I'm now using Harbeth HL-Compact in this setup.

Your advice is highly appreciated.

应该是，但厂方没有很多说明。
高质素的音箱自己这样乱垫高怕会影响低频或这个那个的，但Celestion 3反正没什麽低频，无所谓。

我也试过把Celestion 3斜放（像优闲2号豪华版的箱面那样）果真音箱比较隐形，音场更真。

有公司注册了人类基因的排列。    ：）

音箱前端（单元障板那边）底部用钉脚垫高，后端就直接放在音箱架上。希望没侵权。　　　　：）

呵呵，技术含量越来越高了，好！

之前的误会实出于我的一个没根据的推测：由琴姐独白引起的驻波可能接近200Hz。没受过正统音乐训练，手上的测试CD也帮不到（竟没有注明频率）。不知驻波是否是蔡琴声音的泛音在房里产生共鸣而引起，或是驻波的频率>>200Hz，总之影响到人声的驻波最为困扰。

今天刚试过把皇帝位推前一尺多，坐矮一点，驻波的影响明显减少了，包围感也好了些。

下一步想法把影响人声的驻波找出来，再研究做低频陷阱的尺寸和用料。

看过KENTRYFO兄烧房的帖只有讲声佩服！！连烧房都自己盖, DIY Utopia.