Cayin RU6 USB DAC Headphone Amplifier

Product Information

The product was provided to me free of charge for the review purpose in exchange for my honest opinion. Often, the port will loosen over time, so this makes the RU6 a bit more reliable than most competitors.

By long pressing Mode button you get into Settings menu where you short press Mode button again to step through settings and use Volume +/- buttons to change Gain (high/low), Oversampling (NOS or OS) mode, and Screen Backlight timeout from 10s to 60s or always on until you press Mode button again to turn on/off the display. There is next to no harshness with a liquid-smooth output with an appropriate amount of air to keep the midrange layered and clear. Eventually Cayin developed a high precision resistor array volume control circuit that provides 99 steps volume control through 9 segments of resistors and switching relays. The elaborated decay sounds punchy with piano and drums, breathing in more air and bounciness while not coloring the output boomy. With the Empire Ears Odin, which does have a big bass boost, I love this combination and have been enjoying this and the Hidition Viento combination quite a bit, that I've put down my over-ears for the past couple weeks and focused on just this dongle.But yes, that's the appeal of RU6, for those seeking the balance between musicality and technical competencies. The superb performance of the Cayin RU6 makes it an easy recommendation to anyone who is looking for a dongle with R2R capabilities. Cayin has implemented this using a USB Audio Bridge that receives digital data and sends it to the Digital Audio Bridge where DSD is converted to PCM if required.

This architecture minimises power drain from the mobile source allowing you to enjoy music without the need to worry about battery drain.With Delta Sigma audio processors, what I am hearing today is sound presentation that is very clean, detailed, resolving and analytical - and I can understand that many love it that way. If you are Cayin, after the introduction of R01 DAC/amp card for their modular N6ii DAP, the answer would be the first R-2R usb DAC/amp dongle. In tracks like: "Anchor - Trace Bundy" and " Ruby Tuesday - Franco Battiato" while you will love the overall midrange specially transients of the guitars, violins etc. I have found my preferred tips to be the darker pack-in tips, which resemble (or actually ARE) Symbio Peels.