Advertisement
hpg

Amp requirements

hpg
Sep 26th, 2015
1,237
Never
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
  1. "Even a headphone amp such as the $20 FiiO E5 can produce the same 1.2 Vrms into any load from 16 ohms (about as low as headphones go) to 600 ohms (the common upper limit)."
  2. http://nwavguy.blogspot.com/2011/09/more-power.html
  3.  
  4. "Most consider peaks of 110dB SPL sufficiently loud. Tyll measured the 300 ohm HD600 at 0.23V for 90dB so they need ten times more, or 2.3V, for 110dB. The power is (2.3 * 2.3) / 300 = 18 mW. This works for any headphone Tyll measured."
  5. http://www.innerfidelity.com/content/nwavguys-heaphone-amp-measurement-recommendations#tbx7K8W5uVrU2YGH.99
  6.  
  7.  
  8.  
  9. Ether
  10. Volts RMS required to reach 90dB SPL: 0.071 Vrms
  11. Volts RMS required to reach 110dB SPL: 0.71 Vrms
  12. Amplification not needed
  13.  
  14.  
  15. HD 800
  16. Volts RMS required to reach 90dB SPL: 0.242 Vrms
  17. Volts RMS required to reach 110dB SPL: 2.42 Vrms
  18. Amplification benefits
  19.  
  20.  
  21. HE-560
  22. Volts RMS required to reach 90dB SPL: 0.330 Vrms
  23. Volts RMS required to reach 110dB SPL: 3.30 Vrms
  24. Amplification benefits
  25.  
  26.  
  27. LCD-2
  28. Volts RMS required to reach 90dB SPL: 0.114 Vrms
  29. Volts RMS required to reach 110dB SPL: 1.14 Vrms
  30. Amplification not needed
  31.  
  32.  
  33. HE-400i
  34. Volts RMS required to reach 90dB SPL: 0.162 Vrms
  35. Volts RMS required to reach 110dB SPL: 1.62 Vrms
  36. Amplification benefits
  37.  
  38.  
  39. HD 600
  40. Volts RMS required to reach 90dB SPL: 0.230 Vms
  41. Volts RMS required to reach 110dB SPL: 2.30 Vms
  42. Amplification benefits
  43.  
  44.  
  45. HE400S
  46. Volts RMS required to reach 90dB SPL: 0.086 Vrms
  47. Volts RMS required to reach 110dB SPL: 0.86 Vrms
  48. Amplification not needed
  49.  
  50.  
  51. DT 880 (250 ohm)
  52. Volts RMS required to reach 90dB SPL: 0.299 Vrms
  53. Volts RMS required to reach 110dB SPL: 2.99 Vrms
  54. Amplification benefits
  55.  
  56.  
  57. DT 880 (600 ohm)
  58. Volts RMS required to reach 90dB SPL: 0.514 Vrms
  59. Volts RMS required to reach 110dB SPL: 5.14 Vrms
  60. Amplification benefits
  61.  
  62.  
  63. K7XX
  64. Volts RMS required to reach 90dB SPL: 0.206 Vrms
  65. Volts RMS required to reach 110dB SPL: 2.06 Vrms
  66. Amplification benefits
  67.  
  68.  
  69. SRH1540
  70. Volts RMS required to reach 90dB SPL: 0.109 Vrms
  71. Volts RMS required to reach 110dB SPL: 1.09 Vrms
  72. Amplification not needed
  73.  
  74.  
  75. PM-3
  76. Volts RMS required to reach 90dB SPL: 0.037 Vrms
  77. Volts RMS required to reach 110dB SPL: 0.37 Vrms
  78. Amplification not needed
  79.  
  80.  
  81. Focal Spirit Professional
  82. Volts RMS required to reach 90dB SPL: 0.036 Vrms
  83. Volts RMS required to reach 110dB SPL: 0.36 Vrms
  84. Amplification not needed
  85.  
  86.  
  87. NAD VISO HP50
  88. Volts RMS required to reach 90dB SPL: 0.037 Vrms
  89. Volts RMS required to reach 110dB SPL: 0.37 Vrms
  90. Amplification not needed
  91.  
  92.  
  93. ATH-MSR7
  94. Volts RMS required to reach 90dB SPL: 0.023 Vrms
  95. Volts RMS required to reach 110dB SPL: 0.23 Vrms
  96. Amplification not needed
  97.  
  98.  
  99. Mad Dog
  100. Volts RMS required to reach 90dB SPL: 0.208 Vrms
  101. Volts RMS required to reach 110dB SPL: 2.08 Vrms
  102. Amplification benefits
  103.  
  104.  
  105. HE-500
  106. Volts RMS required to reach 90dB SPL: 0.310 Vrms
  107. Volts RMS required to reach 110dB SPL: 3.10 Vrms
  108. Amplification benefits
Advertisement
RAW Paste Data Copied
Advertisement