tube integrated for Harbeth under $2500

I am thinking about a foray into tube amplification; never been there before. I will be driving a pair of Harbeth Compact 7es3. I listen to classical, jazz, acoustic, and rock- 80% cd, 20% vinyl. I would like to keep the cost at $2500 or under.
Specific reasons for your suggestions based on what you have heard will be helpful.
Thanks