Hi all, what LPs or better songs there on do you use to check that your system is up to scratch or for checking upgrades? I best start . Sade's "Diamond Life", Micheal Jackson's "Thriller" and The Beatles "She's leaving home" from Sargent Peppers serve me well. Diamond life is a great recording, MJ is right behind it and I love The Beatles "She's leaving home" for grasping that singer in the room sensation, and the string arrangement I find revealing to the max, especially early in the song when deep notes first enter. So c'mon fellow fish, your turn!