HeadRoom's graphs

[intoflatlines]

When you look at a headphone, what is that graph under the picture? It seems that its the frequency response graph, but why are there red and blue plots and why do they change for each headphone you look at? I would understand if one color was always a high end headphone (HD650 or something), but both lines are different each time you look at a different headphone. Hopefully someone with the knowledge can help me out with this.

Thanks.

 

[appophylite]

I may be wrong, but if you click on that little thumbnail to enlarge it, it opens up a graph where you can compare various points such as the Frequency Response, Isolation, Impedance and Harmonic Distortion for up to 4 sets of headphones. The Blue plot is always the first phone followed by red, green and orange for the next 3 respectively.

 

[b0dhi]

Quote:

Originally Posted by intoflatlines /img/forum/go_quote.gif It seems that its the frequency response graph, but why are there red and blue plots and why do they change for each headphone you look at?

The response for the left and right side of the headphone.

 

[intoflatlines]

Really?

So there are audible differences between the left and right channels of each set, or just the set they tested?

 

[progo]

The driver pairs are rarely identical. The more close the two graphs are, the better.

 

[Fitz]

I also suspect they are rarely placed perfectly straight on the dummy head, leading to differences from minute changes in position.