Hi brother cyberken, I saw your post regarding your system setup. Usually, we start off by choosing the speaker first. But mind you your requirement is not easy to achieve i.e "想高分析得黎, 有音樂味". I few suggestions for you to consider, like B&W 805 sig, B&W 805 diamond, Dyna C1 or JMLab Micro Be bookshelf speaker.
HIFi rack will definitely affecting the overall sound. But it's all about mix and match. You cannot tell by your "eyes" how a setup would sounds like just by it's rack :)