Power & Battery Consumption
The SD2 is rated for 70mw @32ohm, it is decent, not the most powerful small dongle, but it is decent.As for Its battery consumption, it is very efficient, I got 10 minutes only for 1% of my Infinix Zero 30 5G battery.
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Sound
Bass of the SD2 is neutral and the control is decent, it can displays rumble of your IEM without any problem.
Midrange of the SD2 is also neutral / transparent, not colored in any way, at least to my ears.
Treble of the SD2 is somewhat extended and has good definition, compared to the KA11, I noticed that SD2 offers more “complete” treble presentation. Its like everything is more extended and the layering is also more superior than KA11.
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Technicalities
Stage is very good, its wide, wider than KA11, you can easily tell things is more expanded with the SD2 when you A - B compare it with the KA11.Imaging is good, it has around the same level of the KA11, which is a lot better than your standard smartphone audio.
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