I have the Ragnar and I heard a Viking this past CanJam in Singapore belonging to
@HiFiHawaii808. A/B'd both and to my ears, the Viking sounds more refined especially in the treble. It sounds slightly etched on the Ragnar for me. If you have no issues with the treble on the Ragnar, I believe
@Frankie D is right. It sounds very close.
The other mind-blowing moment for me is when I tried a rare and expensive cable the Nightjar Sovereign Symphony 8W cable on the ragnar. It was a night and day experience for me. It elevated the Ragnar significantly. Refined the treble and added weight to the mids and bass. Currently, the Ragnar is my third or fourth favourite iem. With the SS 8W, it would be my no. 1. It is that good but, I could not live with the ergo. Much too thick!