Congrats to everyone who already had the S1. Dang, still waiting for mine... 
I still have my Mojo here, so I could try to compare between the two.

I still have my Mojo here, so I could try to compare between the two.
anyone can share the eq part.i only saw preset that is provided by lotoo.
While no user adjustable presets are available, the 17 Lotoo presets do not sound artificial or strange. They do, however, have subtle and tasteful differences. Some of the more unusual ones are near field, far field, analog, radio and dental (not sure of what it means, but sounds nice). The second press of the Fn button displays the list of presets. Scrolling is accomplished by the + or - button. Whatever preset is currently showing on the screen become the active preset. There is also a "Flat" preset.anyone can share the eq part.i only saw preset that is provided by lotoo.
Yet... hopefully we’ll be ableThere is only presets. The S1 does not have a user adjustable EQ.
i using gl20 on powerdacv2.Yet... hopefully we’ll be able
I’m So excited for this one, the only other dac that I think can compete might be the e1da gen3, will see in a couple of weekswant to place an order for the e1da and gl20 golden planar
My Fiio M6 is working with Spotify, Tidal, Deezer and Tune In but not with the Fiio Music Player.Yesterday I spent an hour testing S1 with dozens of DAPs and my Galaxy S9 with a bunch of apps. Most of it seems to be working, except for... FiiO. Not the end of the world, but connecting to M11 Pro doesn't even power up S1, and someone just told me the same with fiio M6. Oh, and just for sh!ts'n'giggles I installed FiiO Music app on my Galaxy phone, and it's the ONLY app that doesn't output audio to S1. Everything else works, Hiby Music, Neutron, Qobuz, Netflix, YouTube, etc. but Fiio music app is the only one which doesn't work, and neither does their DAPs. I smell a conspiracy theory lol!!!
And the other two I found not being compatible are iBasso DX160 where S1 powers up but no sound output while their DX220 works OK, and A&K SP1000 where S1 doesn't even power up, but their SR25 I have with me works fine. When S1 doesn't power up, I wonder if it's hardware related due to S1 current draw, though no issues with little guys like M0, R3/pro, AP80/pro, N3.
But with everything else that is working, it's the coolest thing where I can move from DAP to DAP or Android or iPhone phones or my laptop and it all sounds nearly the same from one transport pair up to another!
Anybody else found other transport pair ups or apps that don't work with S1? Please, share. Will be a good feedback for Lotoo since I know Pauline is monitoring this thread and some issues could be fixed in fw.
My Fiio M6 is working with Spotify, Tidal, Deezer and Tune In but not with the Fiio Music Player.
I have never had someone be able to answer this, but maybe you can... If you have sufficient volume headroom on Low gain, is there an advantage or disadvantage to using High gain? I usually try to stay on low gain out of fear of introducing some unintended distortion with high gain...SQ is super good from this dongle. I have the iBasso DC01 which is 2.5mm(I am pretty much entrenched in 2.5mm). I also have a couple of 3.5mm dongles, the one included with Luna and lesser ones from Samsung and Google. I use it with a Samsung S20 Ultra and will use it with my Surface. I do not use iPhone so I can't comment on it. I do have a 4.4mm Male to 2.5mm Female adapter, so all of my bases are covered.
I started out with L Gain and have since migrated to H, I enjoy the additional dynamism. It appears to have a black background, I have tried it with OG Solaris and Solaris 2020. As I write this I am listening to Luna.
The SQ is smooth and organic and it does have power and will give it a go with my full-sized headphones soon. The stage has nice width and on neutral settings I do not hear a ton of coloration.
I am never a fan of presets, but I have dabbled a bit, but feel for the most part I will use none. Headphone and Dental sound good, but so does None. I see how an EQ could be implemented but it would be a lot of button pushing.
On Android, USB Player Pro works flawlessly and recognizes S1.
I have never had someone be able to answer this, but maybe you can... If you have sufficient volume headroom on Low gain, is there an advantage or disadvantage to using High gain? I usually try to stay on low gain out of fear of introducing some unintended distortion with high gain...