1c645963   
   From: dpierce@cartchunk.org   
      
   ChrisCoaster wrote:   
   > That does not explain their flat frequency response. Go on google   
   > image and keyword rh-300 and frequency response and you'll see what I   
   > mean!  only a tiny trough around 7k but otherwise ruler flat.   
      
   Flat frequency response? Methinks someone may need their eyes   
   checked.   
      
   With the amount of enthusiasm heaped on this headphone in this   
   thread, my curiosity was piqued so I went and looked at the   
   frequency response graphs. Replotting that same data on a more   
   normal vertical scale (not the compressed 80 dB scale shown)   
   reveals that,  in fact, not only is the reponse not "flat",   
   it's also on the mediocre side of normal for headphones. And   
   that "tiny trough around 7k?" Well, on the graph you reference,   
   that tiny trough (which is actually at about 5600 Hz), is some   
   19 dB below the level at 1 kHz.   
      
   Overall, the 20-20kHz response envelope is a very UNimpressive   
   +-15 dB. Even over a more restrictive range like 100-10kHz,   
   it's still +-12 dB.   
      
   Ho hum.   
      
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