Thanks for your experience. It is very valuable for me at this moment. Still it's a big dilemma because SRH440 are also amazing headphones. And you probably know that people always give preference to what they like more. However, now looking for a clear recommendation. Shure / Audio Technica...

Quote: I hear this first time that the AT isolate better. A wave of optimism for me. Now it's 60/40 for AT. Amp for MP3 player? I'm not planning to connect the headphones to the MP3 player. It is not a portable model.  

  Aki1: Funny comparison. Someone wrote me that he seems SRH440 comfortable even after several hours. This is probably an exception. bowei006: I didn't expect it will be such a rarity. Decent insulation, mmh. 80% of SRH440? As I said this is a priority. Still it is...

ATH-T500, how well insulate? For my purpose I need to know this information. Sound quality is probably better for these headphones.

  Digital-Pride: I plan to use it as an aid to learning. It helps me to concentrate when I read or run the audio recording. So the noise isolation is an important factor for me. Of course I'll be using headphones for music or movies. I'd like to choose one of these...

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How insulate against noise Audio-Technica ATH-T500? I suppose that quite well. Is there a big difference in noise insulation between theses two headphones?   Audio-Technica ATH-T500 for now has a plus for me.

Please help.

Hi, I need advice. I can't still decide. I want a very good noise isolation. I fear that SRH440 are not so comfortable. Can it stands for 2-3 hours daily? I like both.