OK. So after more play with the SSDT (copying so that device déclaration is almost identical to a real Mac pro) it now works with the THB cable disconnected. However, it doesn't work any differently than with it.
I've had hotplug working before, it just doesn't survive a sleep. And USB-c doesn't work better either.
i successfully got the switching frequencyes to work, i can't belive it!
now i have to test all the frequencyes to work with different cards and see which is the maximun working one for each card, but i can already say that sound blaster live! cards are limited up to 48khz, so the driver will support from 8khz up to 48 khz on this kind of cards, i prefer to keep using official supported sample rates, now i have to test it on the audigy 1st series, 2 series, audigy 2 zs cards and audiigy rx cards to see which is the max frequency thaty can support, but most of them are just limited to 96khz, but we will see in the tests, after the tests i can release both the drivers and the source code for it.