just ordered an arc 
Can't wait to try it out with my GSP 600. Prolly will be in the market for new can soon. Thanks for getting me into a new gadget addiction 
Hehehe Enjoy!,
you have already a stand-out gaming headset, Arc improves its already good sound imaging (exact position of the sound cues in your FoV and behind).
There is a lot of more options now compare when I started. Is incredible how affordable decent amplifier is currently. Back in the day you will spent at least, $900 for a decent headphone amp, crossing your fingers hoping that was worth the money. I got many disappointments.
Hi Alan,
My Arc has arrived! I've got my audio technica plugged in and everything is ready!
Awesome, congrats for your new acquisition. Arc will revolve your audio as XIM did it with console gaming.
I have to run out the door to work tho. I was just wondering is it possible to do custom audio settings with the ARC live all these that you have listed for the A40/Mixamp (tournament, etc.)?
In short: you don't need any of those, your headphones signature is the EQ.
OK, this is the thing... even though Astro MixAmp has a place in my heart, is not my intention sound harsh but being brutally honest.
Astro MixAmp EQ presets (factory and the ones I share here) are made to make the A40 Headset sound better, without the MixAmp the A40 headsets sounds like
crap cheap $30 headphones: muddy muffled bass, recess middle and absent treble.
The MixAmp DAC and its EQ presets are making artificially sound "good". Just like we use ballistic curves to change our aiming with XIM, EQ are trying to enhance some sound frequency response.
Like the OmniVox and Tournament etc -which are specifically design for A40 cans-, what these do is remove the bass, highlight or raise the midrange and low treble because these are the frequency where the enemies footsteps, reload and callouts are, improving sound whoring over sound quality.
The Potara (Daredevil) are EQ presets specifically for certain headphones from A40's to HD600, DT990 pros and other power hungry audiophile headphones. The issue is, MixAmp can't drive these because doesn't deliver enough power. You can add an external amplifier but this distort the already artificial sound output.
In essence,
you shouldn't rely on EQ; your headphones frequency response ("how they sound") should be the only thing you need.
The reason behind this is not a purist argument, is more about performance and fidelity.
Per example, You have a 720p picture, now if you enlarge this image to see it more of its tiny details like a small face, if you do it on software (audio EQ) and resize up to 3x bigger, color artifacts, blur and big pixels might appear and picture will be bigger but its overall quality highly diminish. Now, instead if you have a 2160p or 4K image take it from a 4K camera (your headphones frequency response) then you can zoom in to see all details on its true form, without distortion. That is the best analogy I can think of, but visually nothing wrong really happens it's just an ugly image, but sound wise... you cannot position the sound or even bad distortion can pierce your eardrums.
So, if you want treble go for a "bright" Headphone like the DT880, DT990 or ATH-AD900X, ATH-ADG1X, if you want bass ATH-M50/50x, want best Midrange? go Sennheiser HD600 series etc.
We need basically two things:
WIDE dynamic range to hear all the details in the sound and how fast it changes,
Sound Imaging to ping point, sound cues position precisely all these is the job of the Arc(DAC/Amp) and your headset takes advantage of it.
For gaming is recommended a headphone with very present midrange (footsteps, callouts), crisp fast treble (some footsteps, reloading) and decent bass (explosions). The ATH-ADG1x has recess bass, very forward and strong midrange (footsteps), crisp treble and a wide Sound-Stage (to estimate spatial sound sources and distances) due the open or airy design of the drivers.
Headphones are like Mice, you have to find which will suit your comfort and your hearing... and that's why all the audio fans have more than one headphone, you can go deep in the rabbit hole... the good news is what ever headphone you want to try, the Arc will make it sound at its best.
