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I use a cheap USB sound card (5$). No apparent hiss or noise, and it sounds satisfying. I heard that the onboard 1/4" jack sounds terrible. It is mostly used as testing purpose rather than for enjoying music or videos.

My current amp is falling apart and I want to replace it with an amp that fits on the Raspberry Pi. I use my Pi to play music and videos from internet and my NAS. So I hesitate between the HiFiBerry Amp+ and the IQAudio DigiAmp+. But since I am new to this world of DIY HiFi, I have some questions! 1...