so i just picked up a pair of the ultrasone Hifi 780's... when i'm portable do i need an amp for these when i sue them for my iphone 4s or ipad??? if so any recommendations

so i just picked up a pair of the ultrasone Hifi 780's... when i'm portable do i need an amp for these when i sue them for my iphone 4s or ipad??? if so any recommendations         

need some help...this will be my first pair of headphones as i usually by in earphones ...looking for a portable closed  pair as i'll be traveling on a plane next month for about 8 hrs and wanted something that other people around me won't have to listen to what i'm listening too...my main genre...

need some help...this will be my first pair of headphones as i usually by in earphones ...looking for a portable pair as i'll be traveling on a plane next month and wanted something that other people around me won't have to listen to what i'm listening too...my main genre is rock, hard...

i'm looking to replace my nufore NE-7m's....i was looking between the Re-zero's or the Sw-Xcape... i basically listen to rock music and i use an iphone.. any suggestions or input would be greatly appreciated...also if you suggest an amp any input on that would be great.....

does any one know the cord length on the NuForce NE-7M Stereo Earphones?? i have the d-jays and the cord length is wall to short.. are the Ne-7M similar to the apple cords??

i'm looking to sell my pair of D-Jays and i'm looking for something out there that is compatible.now don't get me wrong i love the sound of them but i have a problem with the length of the cord. they are too short and too long with the extension...i am will to spend some more money but i want to...

I had recieved a pair of D-JAY'S for a b-day gift. I had these for about 3 months and i love the sound from these but the problem i having from them is i'm constantly changing the filters on them..now i know that the first thing people will say is that your ears are filled with wax. i actually...

ok so here's the deal ..i'm in the market for either one of these earphones but i'm not sure which would be more for my usage or music preferences. I'm basically going to use thse for my ipod nano and i ususally use thsi for my train ride into work and also i'm going to use these for the gym...