[crinacle]

As you can see from my curves, my mid-point always seems to hover around -36. Your IT03 measurements seem to have a -24 midpoint.

 

[nmatheis]

As you can see from my curves, my mid-point always seems to hover around -36. Your IT03 measurements seem to have a -24 midpoint.

 
Yes, I see that. With AudioTools, I can see the actual SPL that I'm measuring in dB. I adjust volume to keep it around 90dB for consistency across various IEM. In short, I think you're measuring at much quieter levels than I am. Can you download a simple SPL app and check how many dB your IEM are outputting when your rig is all set up? 

 

[crinacle]

I got my white noise file from here converted to wav on foobar. Just played it in the background and adjusted until overall is within +/-0.9.

Don't have my rig for now so I won't be able to do any measurements for the next two-three days.

 

[crinacle]

Will be going down to The Adelphi for a second round of measurements tomorrow. On the agenda: FitEar, JH and UE customs, various chi-fi IEMs and a bunch of more mainstream IEMs to beef up the catalogue.

 

[B9Scrambler]

Cool thread! I'm in. Thanks for starting it @crinacle

 

 

[nmatheis]

Hey nice to see you here B9Scrambler. I forget, do you have an IMM06, too?

 

[crinacle]

Behold, the big update!
 

Spoiler: AAW W500AHMorph

Full BA mode Default
Full dynamic mode

Fidue A91 "Sirius"
FitEar Aya
FitEar F111
FitEar Fitear 
FitEar MH334
FitEar MH335
FitEar MH335SR
FitEar Monet 17
FitEar Parterre
FitEar Private 222
FitEar Private 333
FitEar To Go! 334 (TG334)

Spoiler: JH x A&K Roxanne

Spoiler: Original

0% bass 50% bass
100% bass

Spoiler: Performance Series

0% bass 50% bass
100% bass

 

Spoiler: JHA JH13v2

Spoiler: Custom demo

0% bass 50% bass
100% bass

Spoiler: Performance Series

0% bass 50% bass
100% bass

 

Spoiler: JHA JH16v2 Performance Series

0% bass 50% bass
100% bass

QDC 3SH
QDC 5CH
QDC 8SH

Spoiler: QDC Gemini

Bass switch off Bass switch on

TFZ 1S
TFZ 3S
TFZ 5S
Ultimate Ears Reference Remastered (UERR)
Ultimate Ears UE18+ Pro
VSonic GR07 Bass Edition
VSonic GR07 Classic
VSonic GR07X

 
Special thanks to Jaben for the opportunity. Feel free to request for any re-measures for any units that you think may have inaccurate curves.
 
Round 2 Favourites: UE18+, QDC 5CH
 
And as historical reference, Round 1 Favourites: Rhapsodio Galaxy V2, Oriolus Forsteni

 

[shiorisekine]

Nice job, i like how much work was put into this. Very helpful especially with the JH iems.

 

[datranz]

Ithanks for doing this, I'm following this very closely for my next iem. I think fr tells a lot about the capabilities of an iem.

 

[Aegruin]

You're definitely awesome. I was wondering the differences between the new 8 driver JH13V2 and 6 driver Rosie. It's all clear now. 
 
It's a little less aggressive and has a slightly better soundstage as I understand it. The 3K peak improves the stage and half off the peaks at 3-5K are gone that would make it less aggressive.

 

[crinacle]

So... I forgot to bring my dongle with me to the shop today. Also the dongle is sold out at every single outlet. Greeeeaaaat.
 
Well I'll be back next week anyways, so expect measurements from 64 Audio, Cosmic Ears, Empire Ears, Jomo, Rhines etc. just to name a few. Round 3's going to be customs all around.

 

[nmatheis]

Hey guys, crinacle and I have been chatting behind the scenes, and I'm going to be adding FR Curves for IEM I've got. In the past, I've used the AudioTools app extensively and have a thread describing my technique (LINK). AudioTools displays the data a bit differently but allows for direct comparison of FR Curves to compare L/R Channel matching and compare IEM against each other.

So, I'm thinking I could add in both the raw L/R Channel measurements from AudioTools and also the FFT Plot measurements for one channel since it doesn't allow overlaying FR Curves.

And if anyone wants to request a direct comparison of two or more IEM whose FR Curves is uploaded, I can provide overlaid FR Curves normalized at 1khz from AudioTools. For those in my collection, I could also measure with different tips to give you an idea of what tip rolling did for various IEM. My responses might not be immediate, but I'll try my best to respond in a timely manner.

Cheers,
Nikolaus

 

[B9Scrambler]

That's pretty awesome Nik. This thread is going to be a monster 

 

[nmatheis]

Yes, it'll be fun!

 

[nmatheis]

iBasso IT03

My first contribution. iBasso IT03 with included medium single-flange wide-bore tips.

Channel Matching with AudioTools app.

Very good channel matching!


IT03 vs. Campfire Orion and Jomo 6R Averaged L/R Measurements with AudioTools app.

I'm using those as two different takes on a "reference" sound signature.


IT03 R Channel measurement with FFT Plot app.


Remeasured the IT03 in Spectrum Analyzer iOS app by Onyx with my IMM06's calibration file applied, with White Noise from Spectrum Analyzer's tone generator, mic sensitivity set to 0.4, and measuring for 2 minutes. This looks better to me.