What tier do you consider Anthem integrated?

Anthem has an STR integrated amp with the ARC room correction. The integrated teams loaded with a lot of features such as built in room correction, stable into low ohms, big toroidal transformer, etc. Would a 15 year old Pass labs amp walk all over a 3 year old anthem? The Anthem is newer and has more features, Anthem is rated class A by Stereophile review, but Stereophile seems to only give amps with phono stages class A ratings, and the Pass labs doesn't have that. So what would you grab? An older Pass labs that may have age issues, or a newer amp with good reviews and room correction? Looking for best sound, not to impress people with brand names. Thanks.