Lavardin IT or Jadis DA50 Signature?

With these amps, I would suggest you decide what speakers you will have first. This will avoid making a mistake as these two amps will not like the same speakers.

Speaker selection should be heavily influenced by the room dimensions and materials. Amp selection will then be heavily influenced by the speakers.

Arthur

Ok, if you want me to pick both speaker and amp, then here goes. I am assuming your room is 16-22 m2 and neutral.

For the speakers, I would go with Apertura Thema. Their tonal color is the most detailed I have ever heard and they have microdynamics like crazy. But when you want loud sound, they do that too and keep it all together like a champ. Very impressive speakers that are also surprisingly efficient. How I wish I could bring a pair back from France....

With these speakers, I would keep the common voice and get the Jadis DA30. I say the DA30 over the DA50 because it has undergone a number of changes since the 50 and it also has "pre-outs" and "amp-in" in case experimenting down the road is of interest to you. And it has nearly the same power. It also can handle many more power tube types than the 50 thanks to its wide-range auto bias which would allow further tailoring to your personal tastes - it will save you from having to try piles of different cables to get the same result.

Arthur