Maybe that bottom.  Thanks guys Don't you feel a peek in upper-mid with k550? Does it exist in k551 too?

ok how is  k551 instead of k550?  some people recommend it to me, but i don't have any imagination about it

I like k240's timber, but do you think k550 is really better? (for listening to music but with obsessive ears) What are differences?

Hi, could you compare these two specially in timber, naturality and bass ?

Thank you... but still i have not got my answer about comparing with k240 mk2 ? 

Hi everybody!    I am a musician and I have tried AKG k240 mk2 but I have not listened to k550 yet. I want to choose between them but i want to know "is there a huge difference between them in sound quality?" (80$ _ 249$) Between some headphones that I've tried, I liked k240's timber and...