I'm quite new to the DIY world but I wanna try to build a "smart clock". And I'm having trouble with making a choice on the audio output. So far, if I'm right i have 3 choice
- Use the on-board jack connector : easy to use but low quality
- I2S output : seems to have high quality but expensive hardware
- USB to jack dongle
- Audio over the HDMI
Am I right ? What's the best solution ? For each of them do I still have to connect it to a stereo amplifier before connecting to the speakers ? If so how do I choose the "size" (I mean in Watts) the amplifier and outputs ?