I’m going off topic here, but rounded shapes are preferable for living room decor. You’ll get very subtle anxiety in a room with only square shapes. It’s soothing to the mind and spirit to have more rounded shapes that you’ll likely encounter in nature.
It’s fine to have a few hard edges here and there, but you can break up the pattern with decor: pillows, candles, vessels, mirrors, plants, tables, plates, lamps, chairs etc...
I doubt that the square shape of a speaker is inherently desirable, it’s just practical.