I own a Prima Luna Prologue 2 integrated which has wonderful sound that I love. But I also have very inefficient speakers (84 db). The Prima Luna sounds great through my speakers, but I could really use more power to handle them better. I don't want to lose the sound quality I have now, but I am thinking of changing to a hybrid amp with at least 100 watts of amp power to go with a tube pre-amp section. Does anyone out there have experience in changing between a pure tube integrated and a hybrid? Have you clearly noticed any difference in sound quality, sound stage, imagery, etc. I would appreciate any thoughful answers.