It's all the fault of the D-class final amplifier, made on a cheap chip. Suitable except for the announcement of stops in the minibus)). Got pros: I bribed the design and small dimensions of the device. Also the assembly is neat. Could be a desktop decoration. Has cons: Very low quality sound. From any source it sounds like 64-bit MP3, a tinny overtone cuts the ear, no matter what speakers, I tried different ones.
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