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Amp requirements - Pastebin.com
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- "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)."
- http://nwavguy.blogspot.com/2011/09/more-power.html
- "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."
- http://www.innerfidelity.com/content/nwavguys-heaphone-amp-measurement-recommendations#tbx7K8W5uVrU2YGH.99
- Ether
- Volts RMS required to reach 90dB SPL: 0.071 Vrms
- Volts RMS required to reach 110dB SPL: 0.71 Vrms
- Amplification not needed
- HD 800
- Volts RMS required to reach 90dB SPL: 0.242 Vrms
- Volts RMS required to reach 110dB SPL: 2.42 Vrms
- Amplification benefits
- HE-560
- Volts RMS required to reach 90dB SPL: 0.330 Vrms
- Volts RMS required to reach 110dB SPL: 3.30 Vrms
- Amplification benefits
- LCD-2
- Volts RMS required to reach 90dB SPL: 0.114 Vrms
- Volts RMS required to reach 110dB SPL: 1.14 Vrms
- Amplification not needed
- HE-400i
- Volts RMS required to reach 90dB SPL: 0.162 Vrms
- Volts RMS required to reach 110dB SPL: 1.62 Vrms
- Amplification benefits
- HD 600
- Volts RMS required to reach 90dB SPL: 0.230 Vms
- Volts RMS required to reach 110dB SPL: 2.30 Vms
- Amplification benefits
- HE400S
- Volts RMS required to reach 90dB SPL: 0.086 Vrms
- Volts RMS required to reach 110dB SPL: 0.86 Vrms
- Amplification not needed
- DT 880 (250 ohm)
- Volts RMS required to reach 90dB SPL: 0.299 Vrms
- Volts RMS required to reach 110dB SPL: 2.99 Vrms
- Amplification benefits
- DT 880 (600 ohm)
- Volts RMS required to reach 90dB SPL: 0.514 Vrms
- Volts RMS required to reach 110dB SPL: 5.14 Vrms
- Amplification benefits
- K7XX
- Volts RMS required to reach 90dB SPL: 0.206 Vrms
- Volts RMS required to reach 110dB SPL: 2.06 Vrms
- Amplification benefits
- SRH1540
- Volts RMS required to reach 90dB SPL: 0.109 Vrms
- Volts RMS required to reach 110dB SPL: 1.09 Vrms
- Amplification not needed
- PM-3
- Volts RMS required to reach 90dB SPL: 0.037 Vrms
- Volts RMS required to reach 110dB SPL: 0.37 Vrms
- Amplification not needed
- Focal Spirit Professional
- Volts RMS required to reach 90dB SPL: 0.036 Vrms
- Volts RMS required to reach 110dB SPL: 0.36 Vrms
- Amplification not needed
- NAD VISO HP50
- Volts RMS required to reach 90dB SPL: 0.037 Vrms
- Volts RMS required to reach 110dB SPL: 0.37 Vrms
- Amplification not needed
- ATH-MSR7
- Volts RMS required to reach 90dB SPL: 0.023 Vrms
- Volts RMS required to reach 110dB SPL: 0.23 Vrms
- Amplification not needed
- Mad Dog
- Volts RMS required to reach 90dB SPL: 0.208 Vrms
- Volts RMS required to reach 110dB SPL: 2.08 Vrms
- Amplification benefits
- HE-500
- Volts RMS required to reach 90dB SPL: 0.310 Vrms
- Volts RMS required to reach 110dB SPL: 3.10 Vrms
- Amplification benefits
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