Those square blue caps are probably Wima caps - OK at best, not what anyone would call high end. My Pre has the Auricaps and I'm really enjoying the sound now; I've though about replacing the Auri's a million times, but still haven't done it yet as I like the warmth they bring to the sound.
Now if I stumbled across some Duelunds, maybe I would change my mind...
Now if I stumbled across some Duelunds, maybe I would change my mind...