Once more with feeling

[Nutul]

The next step is to build a Raspberry Pi into some kind of speaker for the bathroom. Yikes: water and electricity. I'm hum-ing and ahh-ing about how to link the Pi to the speaker. DAC and Amp, Bluetooth, I don't know at this point. I need to do a bit of reading.

This is how, basically, you can connect the Pi to a DAC, and then to an AMP
(if the DAC offers volume control, you can also directly connect it to a set of powered / active speakers, skipping the AMP bit)

Pi => USB => DAC => AMP => SPEAKERS

Pi => HAT DAC => AMP => SPEAKERS

Pi => HAT (coax / optical / i2s) => DAC => AMP => SPEAKERS

Pi => BT-Speakers (like Sonos and the like - of course audio quality here is limited by the BT)

There are also some DIY DAC projects (one is the protodac in one of the audiophile threads here)

For the moOde-in-the-bathroom thing... since the audio quality here is not a must (?), you can probably hook-up a set of powered speakers either via the headphone jack or BT.