Another unit to check @ at the top of your price range would be the Levinson No. 523 (the same as No. 526 but without the DAC module); it would also match impedance wise with the 625.
https://www.marklevinson.com/productdetail/~/product/no523.html
https://www.stereophile.com/content/mark-levinson-no526-preamplifier
https://www.marklevinson.com/productdetail/~/product/no523.html
https://www.stereophile.com/content/mark-levinson-no526-preamplifier