I hooked this little pup up to an audio system that sounds great but only has RCA inputs. It was very frustrating to physically connect to the speaker every time so this gadget was a must have. In terms of sound quality, you will notice a slight deterioration. I tested this system by connecting the Fiio E10K to the line-in of (active) speakers and playing some songs copied from TIDAL as MQA. I then switched to this little guy (apparently uses Bluetooth streaming on the 1Mii SBC on Windows) and you could hear the difference, particularly in the treble/bass detail and some additional spatial "blurring" to say the least. However, if you're not an audiophile and just want "that thing" to stream Spotify to your grandfather's speakers to make them sound great, this little fella will have you covered. Yes, and in terms of usability, it's very, very easy to set up.
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