Back in October of last year, I heard Olympica 2 and 3, as well as their Nova counterparts. To be very honest, I struggled to tell the old lineup from the new Novas ... that sounds redundant :)
If anything, I think the Nova has maybe a slight edge in higher frequency extension which makes it more modern sounding. I actually preferred the warm’ish nature of the old ones, and ended up buying Olympica 2 (non-Nova), and spent the savings on room acoustics and cabling. I run these with Luxman 590AXII which I preferred over 509.
More recently, I purchased a pair of Harbeth M30.1s and compared it with the Olympica II -- same room, same equipment, same cabling. To make a long story short, the Harbeths are more musical and do not give up anything (okay, maybe the Olys have slightly better dynamics) to the Olympicas. Based on your preferred genres, I strongly urge you to try out Harbeth 30.x or HL5+.
If anything, I think the Nova has maybe a slight edge in higher frequency extension which makes it more modern sounding. I actually preferred the warm’ish nature of the old ones, and ended up buying Olympica 2 (non-Nova), and spent the savings on room acoustics and cabling. I run these with Luxman 590AXII which I preferred over 509.
More recently, I purchased a pair of Harbeth M30.1s and compared it with the Olympica II -- same room, same equipment, same cabling. To make a long story short, the Harbeths are more musical and do not give up anything (okay, maybe the Olys have slightly better dynamics) to the Olympicas. Based on your preferred genres, I strongly urge you to try out Harbeth 30.x or HL5+.