The truth is they're both good earphones, however, it's hard to ignore Altone's price to performance ratio / cheaper price. I own both, but I can tell you Altone will pull away in clarity and detail, with a thinner note weight, you'll also have $50 left in your wallet roughly. On the flip side the Dunu has more soundstage width and bigger headstage more akin (or at least the closer ) to a full size headphone. If you want more bass Dunu has that, if you want faster bass Altone has that. Altone's smaller, possibly the smallest 3 - Way hybrid on the market winning in comfort and fit but the Dunu comes with more accessories and better carry case + pouch. To make it simple I lean for Altone because it has the most 'wow factor' sounding the cleanest and clearest, though Ill always will have a soft spot for DN-1000.
tldr: Get the Altone imo.
Thanks for ur recommendation, im still really torn between the two, coz i prefer a wider soundstage and with at least average thump in my bass, but i prefer the lightweightness, speed and price of the altone...
I will have to sleep over this tonight, who knows, my decision might come to me in a dream. =P