I recommend/suggest:
Using a (free) SPL meter app to match the volume levels between daps as even a slight increase in one or decrease in the other can make one sound more fuller and exciting than the other. (Just stick the iem close to the phone mic, use a single wave file if possible).
Same gain on both.
(Note DX300 dac volume if need be).
Same filter (even though there can be variance). Brick wall or something
Note which earphones or headphones used.
Hours of the dap.
Tracks used can be also useful as others can try to reproduce.
Its not going to be perfect and also ones ear shape, fit, tips, files, listening environment, fatigue, age, time of day….
One can only narrow down the possible deviations so much…
Good luck, keep em coming.
In a few weeks we will have a good grouping of reviews and impressions to draw some averages out of
Using a (free) SPL meter app to match the volume levels between daps as even a slight increase in one or decrease in the other can make one sound more fuller and exciting than the other. (Just stick the iem close to the phone mic, use a single wave file if possible).
Same gain on both.
(Note DX300 dac volume if need be).
Same filter (even though there can be variance). Brick wall or something
Note which earphones or headphones used.
Hours of the dap.
Tracks used can be also useful as others can try to reproduce.
Its not going to be perfect and also ones ear shape, fit, tips, files, listening environment, fatigue, age, time of day….
One can only narrow down the possible deviations so much…
Good luck, keep em coming.
In a few weeks we will have a good grouping of reviews and impressions to draw some averages out of