We been here telling you theyre good…

DAC wont change shit.

Amp can bring the volume up if you feel theyre not getting enough power.

Tube amp can add distortion in ways you may like - the 6xx pairs really well with certain tube amps. But this is specifically desiging oddities in for the sake of a different sound - you can make neutral tube amps that would then just fall under the category of “changing the volume”.

Id suggest changing nothing, unless you like tinkering and have lots of spare cash, then buy yourself an amp kit from Bottlehead and have fun

This hobby is about sound reproduction.

You’re thinking about music, the hobby which focuses on music.

To EQ properly is expensive, complicated and time consuming, or both.

To buy new components is a surge of serotonin in my brain juice.

I like the second more.

I used to religiously eq all my headphones. Until one day i reformatted my computer and lost all the individual presets for my different cans. Never bothered recreating them and simply moved on, and never missed it. I know it sounded objectively closer to my preferred house curve, but at the end of the day excellent sounding music was coming out of them either way so i wasnt going to faff around anymore.