Which pre should I choose?


I have an Accuphase A47 to drive my Dynaudio Coutour 1.3SE. I want to choose a pre-amp to match my power amp. and the speaker system. I prefer classical music. My room is not big. But I like warm and sound with thickness. Do you have good suggestion? How about Ayre's K1XE or Audio Research R2 MKII?
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But the new Accuphase such as C2420 are quite expensive. It costs about US$8000 here in Taipei.  This gear has few review in everywhere.
Regarding SA-2000,l I have heard once, but not as good as SA-5000.  It is rare chance to find SA-5000.
How about the Accuphase C-290. It is almost 20 years old. It is selling at US$4000 here in Taipei.