I just got a FiiO E11 and also dusted off my PA2V2 (that I got nearly 9 years ago!). I decided to take some photos, and I will post some more thoughts and comparisons once I have done a bit more listening on both.
First here are some photos of the FiiO E11. I got the package on Amazon that includes a spare battery and charger.
Comes in a nice metal tin with two rubber bands, USB charging cable, and 90 deg 3.5mm cable.
Back side shows off the "Kilimanjaro" name.
The right side has Gain (H and L) and EQ (0, 1, 2).
The volume knob also acts as power on/off and is mostly covered to prevent accidental volume changes.
The top has a power light and charging light. The mini USB charging port is on the side.
The bottom cover is removed to expose the battery. The cover is made of very thin metal.
The battery can be removed to expose a High/Low Power switch.
The body of the E11 is molded plastic.
Another shot of the back side.
Size comparison vs. the Moto X.
Size comparison vs. the Moto X and Beyerdynamic DT770 PRO.
Size comparison vs. Shure SE215.
FiiO E11, Moto X, and Shure SE215.