I own an Audio-GD DI-20HE.

Yes I do!

No need for aggressive response. And my comments is not ment to be seen as aggressive just showing that I'm tiered of this comments about alla other DACs in this thread by some people.

Yes that is also a way to respond to a simple question.

Usually I don't respond to all your strange remarks and word of visdoms, but today I will make one exception. Why would a low quality sound better than a better quality cable?

I wouldn't call LCD-X a laid back headphone and I haven't listen to it with TT2, but IME LCD 4 matched very well with TT2.

In my experience the TT2 needed 2-3 hour warm-up before it sound at it best. A bit less if playing music.

Poor you!

Its't hard to measure cables and measure difference in: Capacity Resistance Induction Impedance Conductance SQ OTOH is impossible to measure, but this goes for all types of hifi gear. https://www.alpha-audio.net/review/megatest-speaker-cables-real-measurements-samples-and-blind-test/2/

https://www.stereophile.com/reference/50/index.html

I don't know but you can still buy it from Audeze and some other dealers. https://www.audeze.com/products/lcd-4z

Matching the equipment to get good synergy is one of the most important things in the pursuit of high fidelity. "The dictionary defines synergy as the interaction or cooperation of two or more organizations, substances, or other agents to produce a combined effect greater than the sum of their...

I think it looks better than two black..

HE1000se is the headphone that sounds closest to Susvara. OG HE6 sound very different to Susvara.

I agree HE6 and Susvara do not sound the same to me. The HE6 is more punchy, direct and aggressive/raw with a sometimes almost piercing treble. Susvara is more refined, relaxed and smooth sounding.