Originally Posted by Starset I use lossless files, I hAve some leftover mp3s but I am not buying anymore of them. I mostly use ripped CDs into lossless format,
so I don't know the exact bit rate but it takes up a lot more space so it must be high.
OK, so that's good.
For (easy) starters, the K550's will be more comfortable than the Grado's.
They'll also Isolate more effectively, but not a whole lot more effectively -
because even though they're 'closed', they clamp loosely.
They won't have the zip and dynamic impact of the Grado's, but in
return they will be smoother, and the treble will be slightly softer.
You'll get a bit more bass out of the K550's, but again not a whole
The K550's require a precision fit on the ears to sound right, and
getting that precision fit is a tricky thing to do. (See the long
K550 thread for more on the ear positioning issue.)
And, though of course the Grado's are open and the AKG's closed,
soundstage will be similar because the AKG's have about the biggest
soundstage of any closed headhones while the Grado's aren't known
for having a large soundstage.
If you want isolating headphones, I'd steer you away from the K550's.
And if you'll be driving them from the iPod Touch, you'll want some
kind of amp. Even a small inexpensive one would make a difference,
something like a Fiio E6. The Grado's are easier to drive.
Got to run now but will post more later...