Are you serious?!? I could have swear PS was 2.5mm trrs.... Never mind, just checked the pictures - it isAnd, yes, LPG takes 3.5mm TRRS and converts to SE. I have no problem plugging in RE600 into LPG. Thank God DX200 will be following mainstream with 2.5mm connection
Btw, Fidue new mmcx balanced cable is 2.5mm TRRS terminated and comes with 3.5mm TRRS balanced adapter, something up your valley if you have any standard mmcx connector IEMs (talked about it here).
Oh man you already know it will be 2.5mm?
I still don't know why there isn't some convention where all manufacturers get together and agree on connectors and plugs, would make life so much easier.