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Live Sound International Article

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READ ME

In the following pages you’ll find frequency traces of various IEMs measured with MiEMi™ adapters. The equipment used for each measurement is listed along with the trace image in the following format;

  • MiEMi™ model
  • Microphone
  • Soundcard
  • Software and version

If you have traces of IEM models you’d like to see added to the list email us with the following;

  • A high res image of the trace (2070x 1520 pixels)
  • A list of the equipment used to make the measurement

Only posts made with MiEMi™ will be uploaded to the list

Posts containing measurement data are intended only as a guide for comparison purposes. SLS Audio takes no responsibility for the accuracy of these traces.

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How To Test In Ear Monitors With MiEMi™

For this guide I’m assuming you have a functional measurement system & sound card set up. Make sure you’ve cleaned any goo or wax out of your IEM’s as this will affect your measurements.

For those that prefer to watch a video demonstration

First thing to do is sit MiEMi™on top of your measurement mic and make sure it’s inserted all the way. Then push the end of the rubber coupler back in on itself. Push the IEM into the rubber coupler as far as it will go (see photos). It’s important to push the IEM’s in as far as you can into the coupler. MiEMi has a 12mm long canal giving a half wave cancellation at around 13Khz just like an IEC711 ear simulator, so increasing the distance between the IEM & MiEMi™ changes the effective length of the canal.

You’re now ready to measure with MiEMi™, start your analyser software and you should now get a trace. I tend to use averaging of about 1 second to minimise handling and background noise interference and smoothing of around 1/3rd or 1/6th of an octave. I typically find I have to zoom out on the vertical axis (- button on SMAART) to get a decent view of the whole trace. If all goes well you should end up with something like the the image below. We recommend the following analyser settings for best results, set averaging to around 1 second and smoothing to 1/3 or 1 octave.

MiEMi™ Trace from a set of JH16v2’s

I tend to store a L&R trace for each band member’s IEM’s at the start of a tour and check them after cleaning each day. I generally clean them with antiseptic wipes & an in ear vacuum cleaner. By Measuring them I’m 100% sure they working when I give them to the band and can quickly identify any inconsistencies.

Isn’t it about time you started checking your in ears? Visit the store and buy yours now

Still unsure if MiEMi™ can help you? Contact us via this form

Happy Measuring!

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Shure SE425

Device:MiEMi-M
Measurement Mic:iSEMCON EMX7150
Soundcard:Focusrite Sapphire 2i2
Measurement Platform:Smaart v8 DI
Other info:Measured by SLS Audio
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Shure SE425 26.79 KB 0 downloads

Shure SE425 Frequency/ Phase response for use with SMAART measurement software …
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Ultimate Ears UE11 Ambient Vent Closed

Device:MiEMi-M
Measurement Mic:iSEMCON EMX7150
Soundcard:Focusrite Sapphire 2i2
Measurement Platform:Smaart v8 DI
Other info:Measured by SLS Audio
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Ultimate Ears UE11 Pro Ambient Closed Vent 26.37 KB 0 downloads

UE11 Pro Ambient with vent closed Frequency/ Phase response for use with SMAART measurement…

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Ultimate Ears UE11 Pro Ambient Vent Open

Device:MiEMi-M
Measurement Mic:iSEMCON EMX7150
Soundcard:Focusrite Sapphire 2i2
Measurement Platform:Smaart v8 DI
Other info:Measured by SLS Audio
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Ultimate Ears UE11 Pro Ambient Open Vent 26.34 KB 2 downloads

UE11 Pro Ambient with vent open Frequency/ Phase response for use with SMAART measurement…

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Westone UM1

Westone UM1
Device:Audix TM2
Measurement Mic:Audix TM2
Soundcard:Focusrite Sapphire 2i2
Measurement Platform:Smaart v8.5 beta
Other info:Measured by Michael Lawrence
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Westone UM1 148.21 KB 1 downloads

UM1 Frequency/ Phase response for use with SMAART measurement software …
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Mackie MP240

Device:Audix TM2
Measurement Mic:Audix TM2
Soundcard:Focusrite Sapphire 2i2
Measurement Platform:Smaart v8.5 beta
Other info:Measured by Michael Lawrence
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Mackie MP240 147.61 KB 1 downloads

MP240 Frequency/ Phase response for use with SMAART measurement software …
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Shure E2

Shure E2
Device:Audix TM2
Measurement Mic:Audix TM2
Soundcard:Focusrite Sapphire 2i2
Measurement Platform:Smaart v8.5 beta
Other info:Measured by Michael Lawrence
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Shure E2 148.60 KB 1 downloads

E2 Frequency/ Phase response for use with SMAART measurement software …
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Shure SE315

Shure SE315
Device:Audix TM2
Measurement Mic:Audix TM2
Soundcard:Focusrite Sapphire 2i2
Measurement Platform:Smaart v8.5 beta
Other info:Measured by Michael Lawrence
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Shure SE315 148.38 KB 2 downloads

SE315 Frequency/ Phase response for use with SMAART measurement software …
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Westone UM Pro 20

Device:MiEMi-M
Measurement Mic:iSEMCON EMX7150
Soundcard:Focusrite Sapphire 2i2
Measurement Platform:Smaart v8 DI
Other info:Measured by SLS Audio
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Westone UM Pro 20 26.46 KB 0 downloads

UMPro20 Frequency/ Phase response for use with SMAART measurement software …
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The Ultimate IEM Maintenance Guide

Rich Sydney knows a thing or to about IEM care and maintenance being the on-site service man at ClearTune Monitors and having previously been maintenance manager at JH Audio here’s his guide to cleaning IEMs

For those that prefer video you can see Rich’s guide on JH Audio’s you tube channel

In a time when you are going to great measures to keep everything clean, there is no reason to be putting a dirty in-ear monitor into you or your artist’s ears! Here are some simple steps and basic maintenance tips for you to help keep your IEMs clean and working properly for years to come. 

After use, the IEMs and cable should be cleaned and dried before being put back into the case. Wax buildup and moisture are the two biggest things that can cause issues with the monitors. Keeping the ear pieces clean and dry will keep the IEMs in their best working condition.  

To begin cleaning the IEMs, wipe down the outside of the pieces with a soft towel or microfiber rag and a bit of rubbing alcohol. I personally like to use the individually wrapped alcohol pads. These are available at any Walmart, CVS/ Walgreens or other local store that sells health related goods. The alcohol will break up and clean any wax or dirt that has built up on the shell and also help evaporate any excess moisture on the IEM. Periodically, also remove the cable and clean the socket. The socket area is a prime spot for corrosion to occur due to excessive sweat. If this area is left unattended, over time the corrosion will build up and ruin the socket and possibly the cable. Damage due to corrosion is not under warranty.  

You can clean the cable the same as the outer shells of the ear pieces. A soft towel and rubbing alcohol will help remove sweat and keep the cable lasting. The clear cables can eventually turn green. It is a natural process that occurs when the wires are repeatedly exposed to sweat. This “greening” of the wire will not affect the sound or quality of the cable.

To better maintain the inside of the IEMs, you can use the loop styled end of the supplied cleaning tool. This will help you reach any wax or dirt build up in the shallow part of the canal. We do not advise inserting any foreign, non-approved object down the canals. There are soft tubes inside the ear that carries the sound and several filters that are used to regulate driver output. If one of those tubes or filters are punctured, it will affect the sound quality. 

For deeper cleaning, we recommend using a Jodi Vac. It is essentially a small vacuum cleaner with a dull “needle” type end on it. This can be safely and gently inserted into the IEMs to help remove deeper wax. Never insert any kind of liquid or other cleaning agents into the IEM. 

Lastly, if the monitors are being used in a situation where moisture or sweat are a big factor, never put the IEMs directly back into the case. Let them air out and dry for a bit. When you do put them back into the case, try to also include a small dehumidifier or silica packet. This will help draw moisture away from the drivers and out of the canal.

If you have any questions about cleaning, basic maintenance or anything IEM related, feel free to reach out to me anytime! 

Rich Sydney is On-Site Service, Sales, Impressions and Artist Relations guru for CT Monitors, you can follow Rich on instagram or contact by email

The only thing I would add to Rich’s cleaning routine is testing and measuring your IEMs to identify any issues early. Make sure you have plenty of IEM cleaning products for your next tour.