I don't think you understand my comments....the HPA4 is a powerful amp...no noise. With my DAVE and Hugo2 alone, no noise. Hiss, hum, etc... a good rig should be dead silent and offer a complete black background. The GS-X Mk2, GS-X mini, etc...all offer black backgrounds (dead silent) too. I think a little more research is warranted. Again, its about the whole chain and TOTL headphones are the "start" of a journey with regards to your setup as they can scale to heights that mid-fi headphones/speakers, etc... cannot. Now I'm not saying that the T1.3 can't sound great out of a budget friendly setup...'cause they do. But they do scale higher...thus my comments for the "start of a journey and not the termination".
I don't think you understand my original comment about oversaturation, but yes congrats on your $3K resistor lol.
It's HIGHLY ironic that you are here pontificating the necessity of a costly chain for a headphone that was explicitly designed to not require one. . .