Plus, the back of this leather case is magnetic which should work with some equipped smartphones, or with an included matching leather covered small metal plate circles which you stick on the back of your mobile device. R-2R is famous for its natural and realistic sound signature, and it’ll offer a very different experience to music lovers.

The Oversampling mode made the sound closer to a Delta Sigma DAC with less treble roll-off, and more precise edges and a slightly quicker transient response.In fact when paired with my ER4SR and Shure KSE1500 I am hearing every micro details that are available in the recordings.

The Treble is not exaggerated with a gentle push for clarity, it sounds neutral in tone and is well polished.The company has achieved renown in recent years with their N6 II DAP especially with its modular design. The new Andro features Knowles' new dual diaphragm BA drivers and employs a more comfortable shell design. It comes packed with single Cirrus Logic CS43131 DAC chip and good build and some nifty features including BT and the volume dial. The RU6 from Cayin is a portable USB DAC and headphone amplifier, allowing you to connect to your devices for high-quality, audiophile-grade sound wherever you are.