Alright guys, now that I have the lab up and running, time to share some measurements with you guys. First set of measurements today is on the different eartips and their influence. Later I'll share measurements on the different filter mods. Probably some time next week. Let me know what else you would like to see.
NOTES:
- equipment: G.R.A.S. KEMAR with antropomorphic ears (i.e. with real ear canal), Audio Precision APx525.
- All measured at characteristic voltage (--> 500Hz = 94dB)
- Used my filter mod for these measurements (= white filter with one foam)
My Buddy
Different tip measurements
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measurement comments:
- best extension found with SpinFit (as reported by many), worst extension with Shure silicon tips (no surprise given the narrow diameter)
- Smoothest response = Shure Olive --> interestingly seems to dampen some of the low mid resonances, cool!
- Comply Ts500 also has smoothing characteristics in low mids, but worse extension than Olive.
- I wouldn't pay too much attention to the very low frequencies roll-off exact values, but in general the foam tips will have a natural high pass filter effect (not perfectly sealing)
L/R Balance
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The sad side of having measurement equipment... finding issues with your gear. My right side sample has 2-2.5 dB higher sensitivity in the mids. It's not a big issue as I'm actually slightly less sensitive on that side
Harman curve compensated responses
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Note: graph says SpinFit, but it was actually with the Olive tip.
This to me shows the real value of the SE846. Properly balanced response! There are not a lot of multi-BA earphones which such a balanced response. Closest I've seen (or even better) is Prophile 8.
Yes, the top octave is rolled off too much, but I don't think that's a big issue.
More easy to interpret graph below, normalized to 630Hz +/-10dB.
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Once more the Shure SE846 with white filter foam mod and Olive tips (smoooooth
).
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