[plonkersaurus]

I'm a long time owner of some AT W5000's and noticed a bit of a bug bear with the headroom frequency response graphs and was wondering if anyone noticed the same thing or could answer why. The comparison charts seem to all be centred around 0db at 1000hz.
 
http://www.headphone.com/pages/build-a-graph
 
Does anyone know why? If you have a headphones like the w5000's that have boosted mids it screws up the rest of the graph completely when trying to compare it to say Beyerdynamic t5p's. It would make much more sense to centre the frequency responses so that as much of the area is above 0 db than is below it. I think if you did that then the W5000's start looking much better than they do right now.

 

[NA Blur]

Yeah that graph appears not to be normalized correctly probably due to a very old file.

 

[plonkersaurus]

It looks like it is "correctly" normalized at 1000hz 0db. I don't know how you can compare headphones like that because you don't listen to headphones by picking the volume at 1000hz...