Which pre should I choose?

There are two Pre in our 2nd hand market. One is Accuphase C-290 (selling at: US$3300) which start to produce in 1993. The other is Accuphase C-275V (selling at: US$2600) which start to produce in 2000. My power is Accuphase CA-47 to drive Dynaudio Countour 1.3SE. I like warm & thick & not to fast sound. Do you have good ideas? I prefer to listen to classical music mostly.