I don't think an unamped AK100ii has enough power to make a planar sound its best.
But I guess the EL 8´s where meant to be driven by almost any portable dap. They are supposed to be driven from your iPad or iPhone. They are 30 ohms.
The LCD series, then yes, without an amp there is not enough power.
I see you have both as100ii and mojo... how do you compare them in terms of dac and amp sections? Do you prefer your ak paired with your mojo?
Thank´s