Theoretically, you shouldn’t have to adjust the sound of the music playing to your HomePod. Between all the fancy music processing, and the HomePod’s ability to tailor its audio to the size and shape of your room, music should come out sounding pretty great already. But that doesn’t account for taste. Maybe you like a whole lot of extra bass? Or maybe a certain frequency is booming in your room, and the HomePod isn’t doing anything about it.
Then you should try equalization — tweaking the balance of audio frequencies put out by the speaker. The bad news is that the HomePod offers no native EQ. The good news is that it’s easy to adjust on your Mac or iPhone.