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Posts by donthuang

Quote: Originally Posted by HeadphoneAddict  That's impedance and phase over various frequencies, not frequency response.   I know that, just try to point stereophile's measure of  electrical phase.  
Again, If T1's highs sounds roll-off, that's mostly because amp's output stage not "fast", or "sensitive" enough.
Sorry for offtopic     This is stereophile's HD800 measure   http://stereophile.com/headphones/sennheiser_hd800_headphones/index4.html   Very different to headroom's    
T1's impedance graph seems is limited by headrooms data system. You may try to ask Tyll for original measure data?  
Take T1's graph for example   http://www.headphone.com/buildAGraph.php?graphType=0&graphID[]=2033   Just change 2033 to 2031,  and set graph type = 0-9     HD800's freq response url is   http://graphs.headphone.com/graphCompare.php?graphType=0&graphID[]=863   Set it to   http://graphs.headphone.com/graphCompare.php?graphType=4&graphID[]=861   You would got HD800's phase angle.      
In some radial conditions, T1's treble would sounds roll-off,bright and cold.   That's the Electrical phase angle relate i guess. A tasks to amp's output stage.  
Quote: Originally Posted by Beagle  I agree. There is light and clarity because of the 10Kh spike, but the extreme top really closes off all of a sudden, it lacks air.     Give it more time, i promised T1 has rich Air after a period of time.   Its a suddenly burn-in change, and made me somehow confused. Just like a closed headphone transform a open headphone. Oh, I know T1 is "semi-open"  headphone.  
All right, i just wonder if the driver matched different existed.
Quote: Originally Posted by Olias of Sunhillow  My opinion of the cans referenced here (in order from best to worst):   1. DT880/600 -- controlled bass, plentiful detail, wide soundstage, very good mids. Perhaps the best all-arounder to be had for less than $300. 2. HD650 -- more bass shake, detail present but less obvious, very relaxed sound with moderate soundstage, smooth and excellent mids. My favorite late-night cans. 3. DT990/600 -- bass...
  Is the relations between T1 and T5p just as RS1 and RS2?
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