[newbie] Help choosing dac/amp: Topping MX3 vs DX3 Pro vs Hel

Hello. New member here.
First of all, my headphones: SHP 9500 (32 Ohm, i know, they don't need an amp). I also use a set of passive speakers that came bundled with a stereo from Sony (LBT-D105). I won't change any of my gear in the near future, i'm not interested right now in do it so.
Main use: Gaming (please, don't put me with all those people who likes RGB and buy everything that has a "gaming" tag on it, i like to inform myself before buying something and my PC has zero RGB), but I also listen to even more and more FLACs with each day, and I also enjoy watching movies on my PC.

I started to look for a better audio solution than the onboard audio of my PC when i bought the SHP 9500 and then I learned about the EVGA Nu Audio (I think that probably every audiophile hates it because it is internal), the idea was to get the NU for $150 on sale, then I started reading and, since I want it to last for several years, the drivers/software will become a problem because someday will have some incompatibility with the OS, or won't be supported by it at all.

My first option was the DX3 Pro from Topping. It is more expensive than the NU by 70 bucks, assuming I will get the card for $150. I learned about the DX3 Pro issues when it first came out, and then I learned that Topping made several revisions to the device, and now its HP output impedance is <10 Ohm, in theory, that will generate distortion to my SHP 9500.

I'm seriously considering to get the Topping MX3, as you may know, it's technically inferior than the DX3 Pro, but it has the same functionality overall.
Some people said to me that I should get the Schiit Hel because (it really has) everything i need, but I find it quite expensive, and my biggest problem with that unit is that I need to unplug the headphones to make the line out active... so i will have to plug and unplug them every time I want to listen to music or a movie through my speakers... that's practically a deal breaker for me, but I had to admit that it's fantastic how it can drive cans with high impedance.

Important fact: most of my information and assumptions came from reading ASR. I know they aren't very popular here, and I personally think that the judgement of Amirm is heavily biased in some of his reviews.
Also, ZeosPantera (From Z reviews) basically "sold me" the Mx3.

My questions are:

1) Is the NU Audio a truly crappy option for $150? Is it inferior to the other three DAC/AMPs I listed in the post? (I already know it's a USB DAC/AMP that connects to the PC through a PCIE-USB bridge)

2) Am I going to have a bad performance if I connect my SHP 9500 to the DX3 Pro? (considering that the DX3 has an output impedance of <10 Ohm)

3) Is the Topping MX3 as shitty as Amirm said in his review? Because Zeos said that it was a pretty cool unit, capable of manage 50 Ohm HP without trouble when it shouldn't suppose to, so i'm kinda confused.

4) Should I seriously consider the Schiit Hel? I really don't like the price, and also I don't like what I said about the line out, but again, I'm a newbie in this area.