I agree with Toetapfactor - I hav had a JA50 and a Jadis preamp is the best match I got, including a Lamm LL2 which I own now.
Jadis amps are a little noisy (as you might already noticed) - place your Jadis preamp as far as your interconnects allow and chech your AC to-earth route.
Jadis amps are a little noisy (as you might already noticed) - place your Jadis preamp as far as your interconnects allow and chech your AC to-earth route.