One quick question: Will I have a good semi portable combo with Grado SR225i connected to my iPad LOD and FIIO E07K ?
If you are connecting to iPod/iPhone only I rather stick with the FiiO E11 unless you will be connecting to both the laptop while in stationary and iPhone/iPod while going round, then the E07K is useful.
That's to be use in both scenario, While using the FIIO E07K with a LOD cable, does it only bypass the iPad internal amp or both Amp and Dac? I did do a loty of search and the answers are not very clear BUT what I did understand so far is LOd only bypass the internal amp and USB on my computer will act as an external sound card (Amp and Dac)
Why bother with the E07K at all?
The iPad actually has a pretty well implemented internal dac and amp, and the brief listen I had with my wife's friend's iPad confirmed to me that it is perfectly OK straight out of the headphone jack. More than OK IMO - actually pretty good.
The 225i is low impedance, high sensitivity, and doesn't need amping. IMO - it gains nothing from being amped - except extra volume which you don't need.
So save yourself the hassle - and listen to the 225i straight from the iPad.
If you want to EQ - consider going software (apps like Equaliser or Accudio Pro) instead of a hardware option.
i'm trying pretty hard to like these he-4's , but the mids aren't there, and the treble is harsh at times
they are detailed, they do have separation of instruments, and they have good bass, and it does seem to place instruments outside the ear cups at times
but, the grodos seem faster, snappier, rhythm , and the treble is smooooooother
will keep listening, trying different types of music, pink floyd was pretty good with the he-4's !
Same trouble I had with them when I demoed a pair. Much Much prefer the HE-500 and HE-5le. HE-5LE is very fast and phenomenal for rock I've heard.