To date, Opus#2 is my favorite DAP. This is about sound. I have not heard such a neutral and at the same time emotional sound with any other player. Especially in conjunction with Kinera Nanna.
Everything is perfect in it: a deep and textural bass, a smooth and incredibly emotional middle and extended tops with excellent attacks and attenuations. Also a rather wide and deep "three-dimensional" scene.
But, there is a fly in the ointment. Software:
1. Each time you turn on a very long scan of the card (which cannot be disabled). I recommend not to turn off the player at all. Fortunately, a very good energy saving system is implemented in it. Only 3-4% is spent per night.
2. The battery charge is not displayed correctly. The first 20-30% can last 4-5 hours, after which the remaining 70% will be exhausted in more than an hour. By the way, the working time in my copy is rather meager - 5-6 hours (High Gein, 120/150).
But all these shortcomings are completely blocked by high-quality sound. So, if you are ready to put up with not the best software, I can safely recommend this beauty.