Please help to chose Integrated amp Diablo 300 , darTZeel CTH-8550 Or ....

Hi, after 35 plus years enjoying this hobby with passion I guess I can consider myself one of those audiophiles. What I’ve learned there’s two types, one who’s all about the Gear, other who’s all about the reproduction of Music, me being the latter. Maybe because I happened to be a former professional vocalist who was in the music business at one time. IMHO; Music (sound) is subjective and extremely personal. How can anyone describe to me, how anything sounds to my Ears? The least of all vocals and instruments coming out of Hundreds of different various speakers, same with the unique blend of gear considering Studio (room) sq footage. I must lessen with my own Ears, and Spirit!