QUOTE(project68 @ Mar 3 2014, 09:20 PM)
i prefer balance...please tell me why you prefer k271 over mdr-1r other than the price? i just casual user so i didnt bother with amp or anything...just want good quality sound...
Erm...It's quite difficult to definte what is "balance". haha.
In my opinion, Most of the Sennheiser, AKG, Beyerdynamic...etc headphone are balance sound. They just use different ways to show it.
Many sound enginners use them as a monitoring headphone too.
Besides, the sound signature of headphone will influence by whole hifi/headfi system. Even the quality of electrical source will influence the sound. For example, HD800 will sound very weird and unbalance if you connect it with a cell phone.
Actually most of the sound signature of computer or mobile phone are very "unbalance". It's quite difficult to find a balance, neutral, accurate sound if you use them as a music source.

I've compare K271, MDR-1r and K550 at the same time. Music source is Fiio X3 and Sony PCM-D50.
I don't like K550. The connection between treble, mid and bass is not natural enough. Treble and bass are not bad, and I feel that the mid is very empty, like there is a big hole between treble and bass. haha.
MDR-1r is better than K550, the connection between treble and bass is smoother. If you dun't have an amp, I think MDR-1R is already good enough. It's quite easier to drive.
But compare to K271, I feel MDR-1R is not clear enough. Treble is a little bit blur. The sound of K271 is very clear and refined. I love the sweet treble and mid. Bass is not more than Sennheiser or Beyerdynamic, but more than K6XX/K7xx series. Considering it is a close-back headhone, its sound stage is very wide, but still can't compare to HD600/HD650, K612/712 or Beyer 880/990...