Probably compressing the living daylights out of it. By squashing it down, they flatten the amplitude in the music and things with a lot of transients (by defin

Probably compressing the living daylights out of it. By squashing it down, they flatten the amplitude in the music and things with a lot of transients (by definition, drums) suffer. It results in a lot of fatigue, because the higher the compression the more it turns into white noise, essentially. Sirius XM might be one of the last to standardize on a reasonable LUFS setting of 12 to 16.