My experience of over 20 years is that Sony ES receiver amps are the best for music through the 2 channel analog inputs via 'pure direct' or 'analog direct' mode (though of course it is subjective). I've owned most of the major brands. If you're someone who has to have his/her receiver do double duty for music and movies, Sony ES is the way to go IME.Looks like someone over on AVS forum is really digging his Sony AZ5000ES and praising it over the Denon 6700H that it replaced. Seems particularly impressed with music.
There was a guy over at AVS a few years back that auditioned all of the top models in his set-up for its 2 channel 'pure direct' analog performance, as he had a high demand and needed the AV receiver to do double duty just as an amplifier, and he returned them all and kept the Sony ZA5000ES.