国外的听感慢慢开始出来了，简单节录和翻译一些评论：
http://majorhifi.com/beyerdynamic-dt-1990-pro-review/
Before knowing about the different ear-pads I felt like the DT 1990s had a
little too much low end coloration to be considered a true reference-class
headphone, this is a term I hold at a unreasonably high standard. But their
sound quality was still fantastic and detailed. Then while reading through
the manual, guys always read the manual.. seriously do it, I figured out that
I was listening for the entire first day with the ‘balanced’ ear-pads which
add a little extra to the low end. Upon learning this I switched out the
pads, again see the manual on how to install them properly, to the ‘
analytical’ version and got more of a response I was expecting from a mixing
grade headphone.
默认的Balanced耳罩对监听级耳机* 来说，低频染色有点太多。
换上Detailed耳罩之后，听起来比较“监听”
（原文是Reference-class，我解释成监听耳机）
While listening to them with the balanced ear-pads this sound characteristic
shifts slightly into the domain of a warmer headphone.
用Balanced耳罩听的时候有点偏暖。
There is a slight recession in the mid range allowing more room for the low
and high end to breath and develop.
中频有些许的凹陷（有点像990？）。
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德文网站，我是用Google翻译成英文再看
http://goo.gl/979Ne6
The Tesla-2.0 generation plays from their stocking and due to the
particularly thin and lightweight design attack rich sounds reflect extremely
precise.
Attack短的声音在1990pro上非常的精准，瞬态相当好。
Compared to my DT 880 Pro I also notice that I hear end reverb individual
percussive sounds on the DT 1990 Pro much longer.
跟880Pro比起来，打击乐的残响在1990Pro上变的更长。
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我自己是有刻意略过一些诸如“相当平衡”、“没有的频段突出”这类的评论啦...
键盘试听的话，有点像我印象中的，还没开声的1770p
昨天去问了一遍，1990p似乎还没有预定进来台湾的时间和消息