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Need a headphone amp for HE-500s…
Oct 14, 2012 at 4:30 PM Post #91 of 96
The HE-500 tends to be midcentric.  Driving them with the LYR in combination with a midcentric tube, such as the Gold Lions or Mullards, will get you more of the same.  Try selecting a tube that accentuates higher and lower frequencies.
 
Oct 29, 2012 at 12:22 PM Post #92 of 96
Not very much talk about DIY amps with the HE-500s.  All my DIY amps are balanced so they all have enough power.  While the 500s sound pretty good with the B22 it can get a little sharp or hot or sparkly up top but with the balanced M^3 it's great.  The treble is noticably smoothed out and no signes of hot treble.  I much prefer the balanced M^3 with the 500s almost a tube-ish type sound (but not).  
 
Also tried them on my 200wpc mono block.  Although I didn't get any distortion I had no room to adjust the voulme.  It was either to low or to loud.  Not a good match at all.
 
Nov 22, 2012 at 10:25 PM Post #93 of 96
Oct 24, 2013 at 4:48 AM Post #95 of 96
preproman said:
  Not very much talk about DIY amps with the HE-500s.  All my DIY amps are balanced so they all have enough power.  While the 500s sound pretty good with the B22 it can get a little sharp or hot or sparkly up top but with the balanced M^3 it's great.  The treble is noticably smoothed out and no signes of hot treble.  I much prefer the balanced M^3 with the 500s almost a tube-ish type sound (but not).  
 
Also tried them on my 200wpc mono block.  Although I didn't get any distortion I had no room to adjust the voulme.  It was either to low or to loud.  Not a good match at all.
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Did you DIY a B22?!
 
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