Using Xperia 1 II, I would give this phone a pretty low score for its audio too.
1: The speakers themselves are not placed evenly. Top speaker is placed the middle, but the bottom is placed more to the right. So when holding it facing you to watch something, it gives off an uneven hearing.
2: Bottom speaker isn't real front facing. The bottom speaker is a gap, with tiny speaker hole pointing downward inside it. The sound then bounces out to the front like how we have our hands at the speakers sometime to make them sound louder.
3: Dolby Atmos makes it sound better but not always. When on, voice & bass sound louder, and sound like they come from middle of the screen, in exchange for overall audio clarity. I play with it often, but normally I have it off for more natural sounding.
This phone is a mess, and I'm not just talking about the audio alone. XD