Suggestion VT100 MKIII with LS9 Pre-AMP

I have the Audio Research VT100 Mk III and the LS9 PRE-AMP, I’AM looking for suggestion, if that a good match on my system, Cables are “KIMBER KABLE HEROS” XLR and RCA for Phono stage…
I used this combination for about three years.
I was very satisfied.
The VT-100 III is a wonderful tube amp and the LS-9 is very musical.
When you can, upgrade the LS-9 to a preamp that uses 6H30 supertube (LS-25 II or REF 2 MK-II).
Also, I'd switch to Harmonic Technology Pro-9 and Magic interconnect.