For all you technical types, if you believe that audio equipment must be "burned in" before use (or to get accurate measurements), I am wondering if there is any objective technical data to support that supposition.
I recently purchased an Eversolo A6 Gen 2 streamer/DAC/preamp and liked it enough to buy a second one two months later. This gave me an opportunity that I have never had before -- namely, to test two identical pieces of audio gear, one that we could say had been "burned in" and the other which had not. My subjective impression, using only my ears, was that there was no difference that I could detect between the two, before or after the second unit could also be said to have been "burned in". My feeling is that, if there were any differences in audio quality, they were too small for my ears to notice.
Since then, I have been using my Loxjie D60 as an external DAC for one of these units, and I do hear a slight difference between the two setups. But it is not dramatic. I use the D60 primarily for my TV audio, but also route the output of the A6 through it to use the powered speakers or its headphone amp when I just want to listen to music (because streaming Amazon Music sounds better with the A6 as a source than Amazon's Roku or Google TV apps and is less buggy).
I recently purchased an Eversolo A6 Gen 2 streamer/DAC/preamp and liked it enough to buy a second one two months later. This gave me an opportunity that I have never had before -- namely, to test two identical pieces of audio gear, one that we could say had been "burned in" and the other which had not. My subjective impression, using only my ears, was that there was no difference that I could detect between the two, before or after the second unit could also be said to have been "burned in". My feeling is that, if there were any differences in audio quality, they were too small for my ears to notice.
Since then, I have been using my Loxjie D60 as an external DAC for one of these units, and I do hear a slight difference between the two setups. But it is not dramatic. I use the D60 primarily for my TV audio, but also route the output of the A6 through it to use the powered speakers or its headphone amp when I just want to listen to music (because streaming Amazon Music sounds better with the A6 as a source than Amazon's Roku or Google TV apps and is less buggy).