best tube preamp under a 1000 for B&K 200 sonatas?

+1 Quicksilver, < 300 ohms output
Audible Illusions line1, 2 ~1600 ohms output
Jolida Fusion has both RCA and balanced outs, if one comes up used,

I am driving a BEL 1001 MK5 having 22K ohms input with Aubilbe Illsions 3a with no problem, 2M interconnects.

Zd542, Mr. Richard Brown passed away in 2009. one Sal Zambrano of Audio Summa manufactures some of the BEL cables and offers repair for the 1001. I have not contacted him so know little else. I have read many of your comment over many threads and have appreciated your input. I have only followed this forum over the last couple months. very enjoyable and educational. Thanks.