How little we need to enjoy music. I bought the RU7 for IEMs but use it with headphones just as much. Grado Hemps and Campfire Cascades sound great with plenty of headroom. The display and volume controls are very useful. I’m using a longer usb-c cable that makes them even more convenient. Happy customer.
This little dongle sounds great! Warm, but with shimmering treble. Balanced sound and excellent power. I love it.
Excellent. What a difference to my Android phone playing music. Can't go without it again. Actually makes me want to listen to a lot more music than I did prior to this purchase.
This is only my second dongle, so YMMV. I am using it two different ways. It performs beautifully with a Samsung Z Fold 4 into Audeze MM-500 and Hifiman Audiivina head phones. Plenty of power, excellent resolution, and dynamics. I am also using it in my office system, with a Lenovo laptop into some old Klipsch computer speakers. The sound is excellent with basic Windows Media Player audio. Much better than straight out of the laptop, again more dynamic and more separation of instruments. Unfortunately the Qobuz App on the laptop doesn't recognize the device. Not sure if this is a Cayin issue or a failing of the Qobuz software.
One criticism of the RU7-- I do not love the Mode selector. I find it a little difficult to change settings.
In a direct comparison with my DAP, a Fiio M11 Plus Ltd (dual AKM 4497 model), I thought the RU7 held up well, but there was a little more body to the sound out of the DAP. To me, the use case for the RU7 is your daily commute, you do not need a DAP unless you are driving a very difficult load. For a long trip, I would probably want to have a DAP, as the RU7 could drain my phone before a long flight ended, and I would like to have my whole library with me.
I received excellent service from MusicTeck- really fast shipping. My device did not come with a free Lightning Cable.
Overall I am pleased with my purchase, and with the customer experience with MusicTeck
Cayin RU7 1-Bit Resistor Network Dongle DAC /Amp