tube amp will drive von schweikert VR4-jr?

Surfgod: "You have to buy whats (sic) reliable & cheap on (sic) this market."

Why do we have to do that?

BTW I'm using Quicksilver V4s on the MR/treble of the rather insensitive Eminent Tech. 8s, and they (BOTH of them!) sound fabulous...best I've ever heard (but I don't get around much to listen to SOTA systems).
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I would suggest 100W minimum. I have a 50 watt ASL amp and it drives them ok, but not in triode mode. I am going to give the bass 200W each channel with solid state and use my ASL tube amp for the mid-high at 30W. The bass driver uses most of the power.

I am using 75W VAC Avatar Super with great results. Not quite as good as SS in the bass department, but overall very good.

I had my Berning ZH-270 (70 wpc) on a pair one day. Not a big room but PLENTY of drive. FWIW.

I happened to be at a party where a fellow was using my amp (McIntosh 2102) rated at 100 wpc and the VR4-jr speakers. Very impressive.