You can use the G6 as the DAC, and use an Amp with it. No need to attach a dac to the G6. I attached the Modi because it got me a little more volume.
As for Tempest vs things like the SBX... give me a moment, I will try and explain ass great as I can about what's better and what's worse....
@kellte2
Ok so Sony's Tempest 3D audio:
This best way I can explain is:
You have a headphone. You all are used to how your headphone sounds, right?
Well, think of Tempest as being exactly like how your headphones sounds in stereo, but adding a layer of dimensionality. It still sounds like your headphones, but with more space next to your head. More directionality, so instead of just left/right with subtle front and back imaging, the effect is more surround-ish, but still within a heaphone's "headspace"
You know how there are people that HAAAAAATE virtual surround because to them it sounds 'fake', 'processed', or 'too much reverb'? Well, Tempest audio will satisfy them because it does not change the inherent sound of the headphones used. It's the least amount of changes to a headphone that I've heard to date, while adding some surround immersion without it sounding like literally anything else we've been accustomed to.
Basically, it's your headphones but with a nice dimentional effect that works incredibly well, and is truly immersive.
Do I like it? I love it. Will it replace SBX, GSX, Dolby Headphone, Atmos, Waves NX? No. Why?
The answer is because each of those is meant to turn your headphones into a virtual set of speakers in a virtual room. No longer do headphones sound like headphones with our well known and tested VSS solutions. They're headphones that have been TRANSFORMED to virtual speakers. This is something haters do not understand. You're not meant to compare your headphones to how your headphones sound with VSS. Why? Because it no longer has a headphone's sound.
So why won't it replace the VSS solutions?
Because VSS like SBX and Waves, etc, has much more dimensionality, space, and stage to place objects in front, behind and around us. You can easily tell when something is behind you, because you can imagine it's a few feet behind you.
Sony's Tempest 3D Audio can't compete with that level of spaciousness and size. It is restricted to a headphone's general headspace. So rear sound cues sound like they're next to your ears as opposed to VSS placing rear sound cues a few feet behind you.
So there's the difference. Tempest allows headphones retain their sound with more dimensionality, while VSS transforms your headphones to virtual speakers that no longer sound like headphones. Two VERY different outcomes.
Tempest = headphone audio with some surround
VSS = virtual speakers in a virtual room
Tempest =/= VSS