Lost calibration file for clone IEC711 coupler

[propaganda1]

Hello everyone, I hope you are all doing well.

I purchased an IEC711 coupler a couple of months ago but didn't have the time to use it, and now that I need to, I cannot find the calibration file, or even remember where I purchased it from to redownload it, I've looked everywhere and there is no trace.

Do I need the calibration file? Is there a way I can calibrate it at home as a newbie? My goal is to check the frequency response of my IEM's and fix any channel imbalance issues.

Thank you for any help!

 

[staticV3]

See here:

Bought an IEC711 coupler, what should I know?

Bought a 711 clone, they include Arta software. I want to measure iems and headphones. More specifically to measure differences when I mod something or assemble a prototype. Question: What should I learn to get the best from it. I will probably make a follow up purchase for the silicone ear...

www.audiosciencereview.com

No calibration file is required to check channel imbalance, but for frequency response measurement you ideally want to check against a reference.

My clone coupler gets pretty close to a genuine GRAS or B&K, but the response spread between clone couplers is huge.

The provided cal file is usually garbage, so here are four ways of checking your coupler's response:

-compare against a reference with the same physical IEM unit measured on both couplers, like I did thanks to the csglinux ER2SE Tour

-create your own squig.link database and upload enough measurements for @jaakkopasanen's 5128∆ feature to automatically take effect

-use a professional pistonphone calibrator to measure your coupler's response.

-measure a few IEMs known for their low unit variation (e.g. Truthear, Moondrop, 7Hz, Etymotic), the more the better, then manually compare against genuine GRAS or B&K measurements online.

 

[propaganda1]

See here:

Bought an IEC711 coupler, what should I know?

Bought a 711 clone, they include Arta software. I want to measure iems and headphones. More specifically to measure differences when I mod something or assemble a prototype. Question: What should I learn to get the best from it. I will probably make a follow up purchase for the silicone ear...

www.audiosciencereview.com

No calibration file is required to check channel imbalance, but for frequency response measurement you ideally want to check against a reference.

My clone coupler gets pretty close to a genuine GRAS or B&K, but the response spread between clone couplers is huge.

The provided cal file is usually garbage, so here are four ways of checking your coupler's response:

-compare against a reference with the same physical IEM unit measured on both couplers, like I did thanks to the csglinux ER2SE Tour

-create your own squig.link database and upload enough measurements for @jaakkopasanen's 5128∆ feature to automatically take effect

-use a professional pistonphone calibrator to measure your coupler's response.

-measure a few IEMs known for their low unit variation (e.g. Truthear, Moondrop, 7Hz, Etymotic), the more the better, then manually compare against genuine GRAS or B&K measurements online.

Thank you for the info, it seems like there have been no updates to the ER2SE tour in a long time

I only own a pair of Truthear Nova's. I guess my only choice is to find that calibration file as its better than nothing (I think?)

Edit:

Question, I need to be accurate only upto around 10kHz, would the provided calibration file be ok in this case?

 

[staticV3]

I only own a pair of Truthear Nova's. I guess my only choice is to find that calibration file as its better than nothing (I think?)

The ones discussed during csglinux' tour turned out to be worse than nothing.