I haven't had the goof fortune to hear the Oriolus although anyway I review purely on the merits of the unit itself
The reason the IT03's 'fascinate me' as an Audio engineer is that they seem to have this magical contradiction in many areas -
neutral yet rich and lively
to be both bright and smooth,
to be wonderfully detailed and yet wholesome,
at times not seeming to have much bass and yet I never want more bass and then on another album low end is deep and rich
They also have this over all sheen that seems to be layered on top of the general sound signature that makes them appear so joyful and eager to please
But never at the expense of quality
Kind of why I dont wanna say too much until the review because there is lot to discuss with this IEM
AIso, as I mentioned previously I think they have created something quite unique...which in itself impresses me deeply!