Arpiben
100+ Head-Fier
- Joined
- Apr 25, 2016
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I've found that I set my Mojo significantly higher when using it with JH custom Angie's. So I've made some crude (but direct) measurements.
Source: AudioTest on a Mac Mini sending pink noise at 0.0 dBFS
Measuring: AudioControl CM-20 calibrated mic > iAudioInterface2 > iPad Pro. The mic was as close to the earphone as I could get it without actually touching.
Ambient noise was around 35 dB (A Weighted).
At 40 clicks up from 0, I measured less than 80 dB (A Weighted).
I thoroughly cleaned the nozzles on my Angie's before the test.
I realize that this is by no means a professional test, but at least I'm doing a direct measurement with calibrated equipment. Estimates by @x RELIC x and @Arpiben were based on theoretical calculations. But my results are very, very different, so I'm wondering what I did wrong...
(Hey Guys! If you can see ways I can conduct a more accurate test, PLEASE let me know!!)
In complement of the hints you already received regarding measurement methodology and source volume (max), I would suggest you to use White Noise or Sine 1 kHz 0 dBFS instead of Pink Noise.
With 1 kHz sine curves you don`t need to care about weighted curves dB A, dB B or dB C since they are equivalent at that frequency.
Pink Noise has not a steady intensity vs frequency that is the reason why for this kind of measurement,imho, I am not in favour of it.
On the other hand, White Noise has a constant intensity vs frequency.
If you are interested, you may find some more information at http://www.engineeringtoolbox.com/decibel-d_59.html.
Cheers