Newbie here. Just got my new system together and had some questions. The heart of my system is a Jolida 202A and an Audio gd 19 MkIII "B" DAC. I have the $300 NAD cd player I don't use much. Speakers are Polk Audio RTi A5s and the DSW Pro 600 sub. I want to know the good and bad about the Heresy III. I am entrigued by this "old school" speaker and the amazing efficiency. As far as the price goes I'm sure it would be an upgrade from my A5s?