[IKBB]

i dont know. im pretty savy when it comes to pro audio, and like to think that i understand a thing or two about sound quality. the 2018 qx60 that i have w/ premium audio is very good. the XM sounds bad, but thats because of the way they compress their audio. but every other source, and the bluetooth audio that i use 99% of the time, sounds fantastic. starting with my 2003 maxima that had bose, i always loved the way BOSE sounds. i think the only competition i heard in a car that is really good, is the B&O system in an Audi.