Want a new amp but what to get?

I had those exact speakers for two months. I used a Primaluna HP Dialogue premium.  That was plenty of power; the 948 are surprisingly easy to drive. The sound was effortless.  I currently have Dynaudio contour 60's which really benefit from the power of pass x250.8 (or similar). I did have an xa30.5 for some time and it was a stunning amp with incredible power margin...far stronger than 30 wpc (actually its a 100  watt into 8 and 200 into 4 in class ab)
I strongly suggest you try the Pass XA30.8 or xa30.5...you will be in for a treat.

Before you make your final decision, I encourage you to read Roger Sanders' excellent white paper (you can find it on Sanderssoundsystems.com in his Technical Papers section) titled tubes vs. transistors. I found this extremely educational.

Here’s another excellent option that’s cheaper than the others I mentioned but will make your 948s sing. Like the Pass amp it’s also pure Class A. I’d just check to see how old it is just to see when/if it might need to be recapped.

https://www.audiogon.com/listings/lis9di3b-clayton-audio-s40-solid-state

If it were me, I'd buy a Valvet amp.  Read the reviews.  The E2 is probably a little too flea powered even for your speakers, but the A1.2 should work just fine and is well within your budget new. 

https://highend-electronics.com/products/valvet-bricks-a1-2-power-amplifier?variant=31868821635