S3 Pro Sounds great, compatibility issues with Samsung
Bought directly from Hidizs. Main reason for purchasing S3 was small fork factor and mic input for on the go, which most portable DACs don't have (other manufacturers take note!) Does the S3 Pro sound great? Yes! Tested with Salnotes 2 and Kz 10 Pro, improved sound over Apple USBC, Also UHQ Upscale compatible (if you prefer it). Works flawlessly with my Alienware Windows laptop for audio and mic input while gaming. A few caveats I have noticed, the S3 seems to have intermittent compatibility issues with my Samsung Galaxy S21 Ultra: digital crackling/pops while playing audio via YT Music and YT, made worse when using my phone, e.g. browsing the Web, checking other apps etc. I have tested with both UHQ enabled/disabled, problem persists. This does not always happen however, sometimes I get a day of trouble free use, other days I get this issue, even after unplug/plugging. Also 50/50 chance while taking a call my voice is all digitally distorted, sometimes unplug/plugging will fix the issue. I never experienced these issues with Apple USBC, which works flawlessly but does not sound as good. I want to 100% love the device but the compatibility issues with my phone have lowered my score. I hope they have fixed these issues with the upcoming SD2. Hidizs please take note! Update: Hidizs were quite responsive to me in trying to sort the issue. With further testing I noticed my old Hauwei Mate 9 and Samsung Galaxy A7 Tablet and they both worked flawlessly with the S3 audio wise (I did not test mic compatibility). With further testing the issue with my S21 phone could be when the battery gets a bit lower, possibly finding it harder to power the S3. Just a hunch.