The first reviews of the DALI iO-4 and iO-6 headphones have appeared:
- StereoNET: "... if you value a more honest reproduction of the music you love, then these headphones will suit." "The DALI iO-4 is currently our go-to full-size Bluetooth headphones and because of that, surely deserve our Applause Award."
- Forbes: "...DALI has produced a brilliant pair of headphones that are superb for serving up music just the way it was recorded."
- Lyd &Billede (translated from Danish): " (DALI) ... have proven here that they are able to transfer the experience of their own speaker devices into the smaller format." "The IO-6's strongest card is and will be the sound quality, which is the best I've ever heard on a set of ANC headphones. This, combined with a build quality matched by a few, makes them a really good offer in the luxury class."