The smallest sound stage I’ve gamed with was the SMSL SP200 with the Khadas tone board. The Magni Heresy by comparison with the TB I never noticed it feeling squeezed in like with the SP200, same with the JDS Atom Amp with it. Pairing them makes a big difference though, not just the amp. Personally if gaming and music are equally important then the JDS Atom original DAC and Amp, if music is the more important then the Magni Heresy and Khadas tone board. I’ve had both and now getting the Heresy/Khadas back again because I miss music with it more than the Atom stack with it’s smooth and accurate delivery of game sound effects.
The THX was not fun for me, the treble isn’t natural and that’s where a lot of game sounds happen. Cymbals and high hats sounded like someone had a finger pressed on them, making a tink more than a splash. Bass dynamics were amazing on the SP200, but in games it drowned out the subtle sounds you want to keep track of.
The Topping L30 was ok with the E30 for games, but I didn’t enjoy playing with it as much as when I contacted JDS labs and they had the original DAC in b stock, so I got it and the Atom amp. I play Destiny 2 so it’s got a really good sound engine for stereo.
For pure gaming accuracy the best I’ve heard was the Soundblaster AE-9 with the SBX on 90% with a pair of Audio Technica ADA-1000x and I could hear behind be clear as day. Also with the Sennheiser HD800 the sound stage made me feel like a S.O.N.A.R. operator in games.
I’d avoid the THX, I’ll never get one again after trying several DAC’s with it, just didn’t feel I could hear that far away with it in games. The Topping L30 was middle of the road for stage too, but not as small as the SP200. I’m sticking with the Heresy just for the value, haven’t tried the Asgard yet, but sure there’s some others here who’ve gamed with one. Might get a Modi 3+ to try before assembling another tone board.