[Aldo40]

Hi, I now have my measurement microphone with 711 and am trying to measure my IEMs with REW on my MacBook Pro.
Now I have the problem that the MacBook behaves strangely because the low frequencies are not displayed correctly. All IEMs look the same at the bottom. On my iPad the microphone works without any problem. Is there a setting on the Mac that I can't find for the 3.5mm TRRS connector?

it is as if the software was set to 200hz, check this

 

[dnspics]

it is as if the software was set to 200hz, check this

I think so.

 

[kkugel]

I think so.

No need for external soundcard, use apple 3.5mm dongle, super accurate

 

[dnspics]

No need for external soundcard, use apple 3.5mm dongle, super accurate

That's exactly what I ordered

 

[dnspics]

No need for external soundcard, use apple 3.5mm dongle, super accurate

Hello,
Thanks to everyone who helped me!
The problem is really the headphone input of my 2015 MacBookPro, which has a pop suppression, where I have not found how to turn it off, but I do not care now.

The solution is now the 3.5mm USB-C dongle from Apple which works great and is not expensive.

Now the experimenting can start

Greetings Marcus

 

[mattmatt]

Glad things worked out!

Hello,
Thanks to everyone who helped me!
The problem is really the headphone input of my 2015 MacBookPro, which has a pop suppression, where I have not found how to turn it off, but I do not care now.

The solution is now the 3.5mm USB-C dongle from Apple which works great and is not expensive.

Now the experimenting can start

Greetings Marcus

 

[MTroy]

@TOBIJampar variable capacitors don't really exist in usable ranges. Old school air variable capacitors maybe, but either real expensive or cheap with no specs listed. (Edit: they are also physically very large.)

Variable resistors / potentiometers - absolutely. I like the MDFLY (available in amazon) 100 ohm multi turn 3296. Plug right into a breadboard, easily repeatable 0.1ohm precision, nice little brass knob, low cost.

Get 4-6+ (shipping is more than the components, so some cost saving there.) You can pre-set to standard values (or combinations of standard values) and if you get frustrated with something you can blindly twist the knob until you like the frequency response, then see what R value ended up working.

@TOBIJampar :
The only one variable capacitor i found has only a few pico range... used to for very accurate filters.
I'm using only variable resistor like the one @Wgibson say, but in smd format (the same which is used by many actual known brands). It provide the hability to change values during listening easily, but i do not recommand it, cause of psycho-acoustic (unless you left a short pause between changes).

In anyway, like said @ForceMajeure, it's more difficult to adjust at the right value.
However, i prefer it to the on/off DIP switch that's requiring less soldering action.
But, the most of time, didn't need them, just took better smd manufacturer with better range tolerance and accuracy.

 

[Psypato92]

Hello everyone, i prépare my firts Diem or ciem but it's posible create a ciem sounds like Elysium ( visión ears) or maybe EarSonics velvet with convencional drivers (Knowless and sonion) the crossover it's very important in My opinión, and Need your ideas thanks

 

[mattmatt]

Hello everyone, i prépare my firts Diem or ciem but it's posible create a ciem sounds like Elysium ( visión ears) or maybe EarSonics velvet with convencional drivers (Knowless and sonion) the crossover it's very important in My opinión, and Need your ideas thanks

Velvet is a dual 22955 and single 29689. I can't seem to remember the xover config.

I think a single 20R thru series dual CI with red damper and a 2.2uf high pass for the 29689 with white/green damper would be ok sounding.

 

[Aldo40]

For Elysium it’s tricky because we don’t know the characteristics of the DD mids. Otherwise the bass is a 38d1x and EST65DA01.

 

[Psypato92]

Velvet is a dual 22955 and single 29689. I can't seem to remember the xover config.

I think a single 20R thru series dual CI with red damper and a 2.2uf high pass for the 29689 with white/green damper would be ok sounding.

Sorry i Say the Velvet and the configuration Is the problem (crossover) After that the switch i like How InEar propile 8

 

[kkugel]

Sorry i Say the Velvet and the configuration Is the problem (crossover) After that the switch i like How InEar propile 8

You mean you don't know how to make a crossover in general, or to make it like these IEMs?

 

[Psypato92]

You mean you don't know how to make a crossover in general, or to make it like these IEMs?

Make in this Iems? For exemple de CAN use the switch for pass yo basshead yo natural mode, thé crossover i Need resistores and capacitors 2.2uf, 3.2uf and play with the valors, dampers, and the tube right??

 

[kkugel]

Make in this Iems? For exemple de CAN use the switch for pass yo basshead yo natural mode, thé crossover i Need resistores and capacitors 2.2uf, 3.2uf and play with the valors, dampers, and the tube right??

Sorry man, don't understand what you are trying to say. I recommend trying deepl.com, that translates super accurate!

 

[saldsald]

I am trying to get all the parts to build the finale 2. May I ask which one is the ED 30761? I found on AliEx but it has no waveguide to connect to a tube.