大陸耳機論壇這個討論串蠻有趣的
http://www.jddsy.com/nubb/non/Forum5/HTML/006295.html
轉貼一下:D
以下是德國耳機資深愛好者Jan Meier在美國耳機論壇上的一段評論：
I know that many people think the DT931 to be very bright.
Well, they are bright when driven directly from your CD-player or a headphone amp. The point is that CD-players and headphone amps generally have a low output impedance.
If you use the headphone jacket of an amplifier or an receiver these phones will sound much better. These headphone jackets normally are connected to the power output of the output stage. To prevent damage to your headphones there are resistors placed between output and jacket. Value of these resistors generally are around 300 Ohm.
The international standards for headphones, give as a description for headphone jackets an output impedance of 120 Ohm.
This is a kind of compromise.
The HD600 definitely sounds best at a zero ohm output impedance. At a higher output impedance it becomes rather dark and muddy.
The DT931 definitely sounds best (less bright and deeper bass) at an increased output impedance. I use 120 Ohm but others (Apheared) seem to tend to higher values.
The good thing of the DT931 is, that it thus can be tuned to your taste. By placing an adapter between headphone and headphone jacket with two resistors integrated you can optimize sound.
If it's too bright for you, use higher resistor values. If it's too warm/dark reduce the resistor value.
Such tuning is not possible with the HD600 since, for my taste, it is already rather dark at zero ohm output impedance and becomes even more dark at increasing the resistor value.
In my opinion, if properly tuned, the DT931 are by far superior too the HD600. Especially in the bass the HD600 tends to sound colored and lazy in comparison.
A friend of mine who did a comparison last weekend (and also preferred the DT931) described the sound of the DT931 as 'electrostatic' (He owns a pair of QUAD ESL63 loudspeakers)
Jan的結論是，只要阻抗匹配正確，DT931的音質遠勝HD600，特別是低頻方面，相比之下HD600的低頻顯得懶散（我估計指速度慢）。Killer似乎做過這種調節輸出阻抗的adapter，能否說說感受？
我沒有試過Jan建議的阻抗適配器，但我覺得，只要音源和耳放音質柔順不失真，DT931的聲音已經在HD600之上。正如Jan所說，DT931的透明度有靜電喇叭的風範，這點恰恰是HD600所不具備的特質。
這兩副高級動圈耳機是很有代表性的産品，希望大家多討論！
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音響跟劇場，都是一種虛擬性的真實:P
AndAudio.com
聊耳機、品音樂、論音響、玩電子DIY以及哈拉風花雪月的地方友站對於931的相關討論
版主: aeolusyung, zhang230631, suzumiyaminami
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友站對於931的相關討論
由 阿毛 發表於 週六 12月 15, 2001 3:16 pm
- 阿毛
- 論壇顧問
- 文章: 4248
- 註冊時間: 週二 12月 05, 2000 2:44 am
- 來自: Taipei
由 Basagrove 發表於 週五 12月 21, 2001 1:39 pm
這裡有一個高頻衰減器http://headwize.com/projects/beyer_prj.htm
據說用在931身上很好
剛剛稍微算的一下他的第一個電路
這是一個濾高頻的低通電路
大約13MHz以上頻率會被濾掉...
不過...這樣真的有影響嗎
13MHz這麼高 人耳聽不到吧~_~
還是人的感覺是很敏感的東西ㄋ....
感覺學了這麼多東西 都是只能拿來當做參考用
--
最後がも知れないがろ
だから...
全部を話しおきたいんだ...
-
Basagrove - SR60
- 文章: 68
- 註冊時間: 週日 12月 02, 2001 8:42 pm
- 來自: 台北
14 篇文章
• 第 1 頁 (共 1 頁)
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