The best replacement for hd650 is hd800.

The best alternatives to hd650 are rated as following:
★★★★★  hd800
★★★★★  hd600
★★★★  hd598
★★★  dt880
★★★  hd700
★★★  q701
★★  he 400
★★  he400
★★  k701
★★  he-500
★★  dt990
★★  lcd2
★★  momentum
★★  k702
★★  akg q701
★★  akg k701
★  lcd-2
★  he500
★  t90
★  beyerdynamic
★  grado rs1
★  akg702
★  rs1
★  k712
★  hd595
  mad dog
  hd 598
  akg k702
  gs1000
  595
  p7
  grado gs1000

Your alternative for hd650 is not listed? Suggest!
Speaking about hd650, one probably shouldn't forget about fiio e17.

Other search terms related to hd650 and their ratings are:
★★★★★ fiio e17
★★★★★ asgard
★★★ cmoy
★ fiio e7
fiio e11
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You have in mind a companion for hd650 and it is not yet here? Propose!



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