We're talking about an HE-500 not an HE-6. Exceeding the threshold of pain is overkill. I own the pair, turning up the volume all the way or anywhere near it is asking for damaged hearing. I listen on the loud side and there is so much more to go. The sound quality is superb. The bass is clean and tight. The treble is wonderful, the sound of cymbals and high-hats are correct when that metallic clink and clanks are spot on. You can hear details in all their glory There is nothing more to ask for or to be unhappy about.
Please specify which Schiit amp you are referring to with these qualities with the HE-500.
"Own the pair" and previous conflicting Vali and Lyr references do not make it obvious which amp delivers this glory for your ears.