Jadia Orchestra Reference Integrate Amp

Hi, I need some advice from gurus out there. As I have inherited the above integrated amp and looking to buy a set of speaker to go well with it. Can someone advise me a few brand that i can start reading up on ? I have tried this amp on my friend's Maggies 1.6 and it sound ok but lack the dynamic that he had when he hooked his maggies up with bryston /krell.
Firmly believed that it was a mismatched. Thus looking for recommendations from any of the guys out that to complement this amp. Love, slow rock, jazz, vocal-type music. Millions Thanks in advance
Zu, Audio Note, Audiokinesis are all easy to drive with tubes and highly acclaimed
What's your budget and other equipment?