[Omid]

Hi guys, I'm confused!! Can you compare these headphones in
BASS ? (I'm getting k550 but I've heard there is lack of bass. I've listened to hd 380 pro, it's in my mind, I'll appreciate you to compare specially these two)

 

[PurpleAngel]

It would help to know what sources your plugging the headphones into.
The K550s are not "bassy" headphones, but I do like the over all sound quality of my K550s.
I do not have any complaints about the K550 bass.
 
DT880 do sound good, but do have to be used with a decent head amp.

 

[Omid]

1. I mostly use MacBook Pro and iPod. I have audio fire 4 too, but whiteout an amp I can use it as portable headphone, and I don't know how the sound would change if I use my amp !?!? Is there huge difference?!

2. So... as I have heard hd 380pro's sound (I didn't like it's sound, there was lack of bass) I need you to compare them in bass.

3. What about burn-in headphone? Does it make difference in bass or treble? What is the best way to burn-in?