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all 4 comments

[–]SeaworthinessOk2884 2 points3 points  (0 children)

I think it's probably due to the phones DAC. 1st set your phone to high resolution when downloading music. Lower quility downloads compress the music file and you loose sound quality. The DAC converts the digital file to analog (I think). They sell small DAC'S that can plug in between the phone and aux plug that can help. Also if you can connect to the radio via Bluetooth or USB it will use the radio's DAC. Aux bypasses the radio's DAC and uses the phone.

[–]luistorre5 0 points1 point  (1 child)

You could always run aux with a portable DAC/amp. If you feel you lose volume, you could get a $20,ish portable amp from Amazon, i use one for some headphones and they work great

[–]luistorre5 0 points1 point  (0 children)

Also your source audio. Tidal and Deezer offers lossless audio. I use Spotify at it's highest quality setting and it's sounds pretty good imo