I am in the market to purchase a two-channel amplifier mainly for listening music in the living room. I am currently considering between the Topping TP60 and the Marantz PM6004. For those who had the chance to listen to both, which of them have the music quality? Never mind the other differences such as price, remote control or others, I am concerned with music quality only so if you can compare them music quality-wise, I would highly appreciate it.