Fiio Q5 - AM3 Amp Unit 2.5mm Balanced Output Noise Level

Описание к видео Fiio Q5 - AM3 Amp Unit 2.5mm Balanced Output Noise Level

I found my Fiio Q5, using the default AM3A amplifier module, has rather high output noise on the 2.5mm balanced output. In comparison, the 3.5mm unbalanced output is much cleaner and free from hissing noise, when tested using 1964 Ears V3 universal IEM. 1964 Ears V3 is a very sensitive IEM at 119 dB/mW. Using less sensitive IEM, both 3.5mm and 2.5mm are relatively clean. But overall the 3.5mm is cleaner than the 2.5mm output.

I went to the shop where I bought Fiio Q5, to compare my unit and their demo unit of Fiio Q5, same result, same noisy 2.5mm output.

I hope Fiio could fix the relatively high 2.5mm output noise floor on this AM3A amplifier module.

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