http://www.audioworkshop.com.hk/report/d2_2/d2_2.htm
「I have tried using OPA111AM and AD8610 as the output opamp after I obtained both :
拿到 OPA111AM及 AD8610這兩款 opamp後﹐立即安裝上 AW-D2作輸出用, 便開始試聲。
OPA111AM : The sound of it is thicker than OPA637, especially the vocals. The vocals becomes more sexy and thick. Bass is a bit deeper than OPA637, but the bass is lose and not tight. So you won’t get a clear bass. The treble extension is not good. Resolution and details is not good either. When I listen to music, a lot of details just disappear. The sound stage is quite flat, not 3D enough.
OPA111AM : 聲音較OPA637厚, 尤其是人聲。聽人聲時覺得歌手的聲線會較磁性一點, 厚一點。低音較OPA637深但比較散, 也較蒙。高音的伸延不太好。細節及清晰度不及OPA637。聽音樂時有很多細節都不翼而飛。層次感也不清晰。音場比較平面, 欠立體感。
AD8610 : The sound is thicker than OPA637. The density of sound is higher. Bass and treble extension is very good. It got a clean, deep and tight bass. The resolution and details is almost as good as OPA637. The dynamic is also very good. Sound stage and imaging come close to OPA637. The AD8610 is a very musical chip, in terms of musical enjoyment, I will rate this chip over OPA637,. It just make you enjoy the music more.
AD8610 : 聲音較OPA637厚及聲音的密度較高。低音及高音的伸延都很好。低音清晰結實及潛得夠深。層次感﹐分晰力及細緻度直迫OPA637。動態也非常好。音場和結像力和OPA637差不多。AD8610 的音樂感很強, 比OPA637好, 音樂會比較生動。所以我比較享受AD8610所發出的聲音。
In conclusion, if you like a more transparent and detailed sound, select OPA637. If you like strong bass, musical and dynamic, AD8610 is better.
總括來說, 如果你喜歡透明度高, 聲音細緻清晰的音樂, 可以選擇OPA637, 如果你要較多低音, 音樂感強和動態較佳的話, 可以試試AD8610。試過幾粒不同的Opamp後發覺Opamp對部DAC有重要的影響, 聲音真的可以相差很遠。」
只供参考。
