Sir,
Your 30 watt Jadis would run the Guarneris in that room just fine. I will tell you that I had more success with them in larger rooms than small ones surprisingly. They like room to breath and will play "big" in a decent size room with a bit of power on them. I think they will sound very nice in your room. Make sure you get the shorter of the two pedestals that were made for them. I think the combination of speaker and stand equals about 51"
Your 30 watt Jadis would run the Guarneris in that room just fine. I will tell you that I had more success with them in larger rooms than small ones surprisingly. They like room to breath and will play "big" in a decent size room with a bit of power on them. I think they will sound very nice in your room. Make sure you get the shorter of the two pedestals that were made for them. I think the combination of speaker and stand equals about 51"