What I need to do is compare the two in the same mode, or just turn the dac off and see how they differ volume wise. Again, still some other variables, the different drivers being the main one, I'd think they'd would be pretty close, but maybe not?

Makes sense to me, in the end it makes things easier for me, just plug them in and dont need to worry about the extra extensions and adapters. Thought it was interesting that the RS2e did that, i just assumed based on the impedence specs and the 125e behavior that they'd be detected by the LGs...

Its brand new from Grado, so its all stock. I would generally trick mine to go into the aux mode (little bit higher output, but not as high as high impedance mode) for my 125e. You can definitely hear the difference (for the better) when youre able to switch between modes. For my hifiman...

Theres an app that'll tell you. A search of "LG hifi status" in the store will find it. Does cost a few dollars. Kind of unnecessary once you know how it accepts a particular set, but when trying new headphones its helpful.

Agreed, I'm definitely not complaining I think the whole setup sounds great (also using UAPP), and especially now with the RS2e, but I had done a fair amount of research (as best I could anyway), and dont recall seeing it mentioned anywhere.

Question for the group, I'm new to head-fi, so apologies up front if this isn't in the right place. I'll try to make this as succinct as possible. I use an LG G7, and a G8 with a recently purchased RS2e and I have a couple years old 125e. Both list a 32 ohm impedence on the Grado website...