What is their mechanism of damage with high SPL ?
And what are the signs/symptoms ?
I plugged into a DAC/amp and didn't realise the volume was at max 0dBFS - I had paused music volume beforehand but music app did not respect my pause !
Lucky cans were not on my head.
They actually sound fine atm - haven't heard any issues with any songs.
But I'm worried if there was some minor damage still.
This was a Pro-Ject Pre Box S2 DAC playing music (only 5 seconds) at 0dBFSI expect the Sundara (most hifiman and Audeze) to be able to take some electrical beating, certainly with music. I suspect 2W is not an issue.
I played 20Hz tone (mono) with Sundara connected to SMSL SP400I would not bother. The S2 cannot blow up any planars. There cannot possibly be any damage.
Ok just did this and nothing at 20Hz - good signAlso try a 100Hz tone first (at loud volume, shortly) and then without changing the volume try the 20Hz.
The S2 is technically incapable of inflicting any damage to the Sundara.
Preamp: -11.0 dB Filter 1: ON LSQ Fc 28 Hz Gain 6.00 dB Q 0.71 Filter 2: ON PK Fc 66 Hz Gain -0.80 dB Q 1.50 Filter 3: ON LSQ Fc 105 Hz Gain 5.50 dB Q 0.71 Filter 4: ON PK Fc 940 Hz Gain -1.0 dB Q 3.70 Filter 5: ON PK Fc 2250 Hz Gain 3.30 dB Q 1.40 Filter 6: ON PK Fc 6105 Hz Gain 2.2 dB Q 1.50 Filter 7: ON HSQ Fc 10000 Hz Gain 0.0 dB Q 0.71
I suggest to also lower 10kHz by approx. 6dB.
This 'smoothes' the treble.
Yes, that is because all those measurement fixtures have a dip there (compare all measurements of all headphones there) so that 'obscures' peaks there.
Those fixtures should not be used above 8kHz.
The peak is really there though. Give it a try and see how the treble looses some of the 'sharpness' or 'metal sheen'
Try using Crinacle's EQ function in his measurement tool to estimate that. That, a comparison between other 43C measurements, like Oratorys, and your own ears should land you on the sweetspot of EQing.Will give it a try. So add a peak filter at 10kHz -6dB gain - what Q value you recommend ?
Q = 3 ?
6dB sounds quite different.I suggest to also lower 10kHz by approx. 6dB.
Preamp: -11.0 dB Filter 1: ON LSQ Fc 28 Hz Gain 6.00 dB Q 0.71 Filter 2: ON PK Fc 66 Hz Gain -0.80 dB Q 1.50 Filter 3: ON LSQ Fc 105 Hz Gain 5.50 dB Q 0.71 Filter 4: ON PK Fc 940 Hz Gain -1.0 dB Q 3.70 Filter 5: ON PK Fc 2250 Hz Gain 3.30 dB Q 1.40 Filter 6: ON PK Fc 6105 Hz Gain 2.2 dB Q 1.50 Filter 7: ON PK Fc 10000 Hz Gain -3.0 dB Q 4.00 Filter 8: ON HSQ Fc 10000 Hz Gain -1.0 dB Q 0.71
Nice! Just a reminder it's based on trying to find something simpler that fits all of Amir's, Sean Olive's, Cirnacle's, Oratory's and Resolve's measurements as best as I could eye-ball. And now @solderdude 's too since others don't show any 10kHz peak.@Music1969 I tried your EQ