markanini
100+ Head-Fier
- Joined
- May 17, 2004
- Posts
- 415
- Likes
- 80
http://www.geocities.jp/ryumatsuba/review.html
All of this person's graphs show headphones as performing much flatter than other graphs of the same phones ... I cannot read japanese, so I do not know the methodology, but something seems off.
I cannot read japanese.
From my interpretations of these graphs, which is probably incorrect but is part of the reason why I'm posting this, it looks as if the HD650's can compare to the Beats Pro. The impulse response looks cleaner on the Pros; the 300 Hz square wave for the Pro and HD650 have a similar-looking response (although the first oscillation on the Pro is larger in amplitude); the 30 Hz square wave for the Pro is more flat/linear than the HD650's and has a smaller initial spike (I'm not sure what that means).
Just from these graphs alone, it seems as if the Pros can compare with the HD650's. I haven't heard the HD650's myself so I cannot comment on its sound signature, but I am quite certain that people around Head-Fi would recommend the HD650's over the Beats Pro for sound quality.
Can anyone enlighten me as to what exactly these graphs mean? If the graphs are similar, does that mean anything?
Thanks in advance for any help you can provide.
I've never heard the Beats Pro but they do measure fairly well. I used to own the HD650 and liked the quiet a bit though.
They have similar FR and 30Hz square waves but that's about it. The HD650s have much lower levels of distortion throughout the majority of the spectrum. The 300Hz square wave shows the Pro's drivers have a short period of high amplitude ringing and that is corroborated by the impulse response. The HD650s appear to ring for a slightly longer period of time but at a much lower amplitude relative to the initial response which will be less audible as than the behavior the Pros exhibit.
Does that longer ringing time factor in to how a headphone can sound 'fast' or 'slow'? From the SRH940 thread, I think someone mentioned that the HD650's are 'slow.'
Also, regarding the differences in the left/right drivers, are the different responses for the Beats Pro due to the 'single-entry' cable as opposed to the HD650's 'double-entry' cable connection?