[dhruvmeena96]

@dhruvmeena96
@eunice
@Shilohsjustice
And all you other pros..... which recipe would you suggest for a mastering ciem with good detail in low/high mids and good Triebleextension with also low impedance(easy to drive)??? Bass should be there but is not of the essence!
so which one....

1. Dhruve‘s recipe with ed30761+2389D and U-Pad
2. MASM pro
3. Finale 2
4. Finale 3

go.......

mastering ciem
diffuse field, harman Tuning, Free Feild or @toranku curve

those above recipe are old and dont follow any graphs which may be required for mastering purpose

 

[gregeagle]

mastering ciem
diffuse field, harman Tuning, Free Feild or @toranku curve

those above recipe are old and dont follow any graphs which may be required for mastering purpose

But which one would be the closest in your opinion?

 

[mattmatt]

But which one would be the closest in your opinion?

Single 2389 I think is best DF. Also ED29689.

 

[dhruvmeena96]

But which one would be the closest in your opinion?

So here is a kicker for you

Sonion 2389D internal series x 2 parallel + 100ohms resistor + custom zobel if you need one

Order is
Drivers - resistor - zobel

The inductance after resistance would be 8.58308604mH

Zobel is

0.5113106365000213 uF
129.5625 ohms

Try to keep it near value


2 tubes
2mm ID
8mm lenght
Green damper at end for both


Here is diffuse feild with top end spec and distortion
I mean it might kill planar

As you have divided the volt and ampere by 1/2

1/2 volt and 1/2 ampere per driver or true 1/4 power split.

All the drivers will play 1/4 of its loudness and will combine up to make the SPL.. this will reduce distortion by huge margin

You can experiment to red damper if you want for more smooth playback

 

[mattmatt]

So here is a kicker for you

Sonion 2389D internal series x 2 parallel + 100ohms resistor + custom zobel if you need one

Order is
Drivers - resistor - zobel

The inductance after resistance would be 8.58308604mH

Zobel is

0.5113106365000213 uF
129.5625 ohms

Try to keep it near value


2 tubes
2mm ID
8mm lenght
Green damper at end for both


Here is diffuse feild with top end spec and distortion
I mean it might kill planar

As you have divided the volt and ampere by 1/2

1/2 volt and 1/2 ampere per driver or true 1/4 power split.

All the drivers will play 1/4 of its loudness and will combine up to make the SPL.. this will reduce distortion by huge margin

You can experiment to red damper if you want for more smooth playback

Two 2389D?

 

[dhruvmeena96]

Two 2389D?

Yes
For those who don't know
2389D is dual 2389

So
Quad driver

 

[gregeagle]

F..... Christ
This sounds Crazy!!!!!!!!!!!
I will give it a go!!! Have to Order those Double D‘s!!!!!
Thanks @dhruvmeena96

 

[mattmatt]

Yes
For those who don't know
2389D is dual 2389

So
Quad driver

I know. But why?

 

[dhruvmeena96]

I know. But why?

ER4 sound but reduced distortion

ER4 2D like bass is because its tuning and distortion characteristics, it's a single driver plus it has to go through Doppler and IMD. So having 3 more driver to assist it, may drop distortion so its bass could be clearly heard.

And since it's diffuse feild, it will be clear and clean as hell according to what he wants

 

[JEHL]

ER4 sound but reduced distortion

ER4 2D like bass is because its tuning and distortion characteristics, it's a single driver plus it has to go through Doppler and IMD. So having 3 more driver to assist it, may drop distortion so its bass could be clearly heard.

And since it's diffuse feild, it will be clear and clean as hell according to what he wants

I wonder, how hard is to recreate the ER2XR signature with BAs?

Edit: Which I think it's essentially an ER4 with a +5dB low shelf from about 400Hz or so?

 

[dhruvmeena96]

I wonder, how hard is to recreate the ER2XR signature with BAs?

Edit: Which I think it's essentially an ER4 with a +5dB low shelf from about 400Hz or so?

ER2XR

Add a extra BK heavily damped with dampers

Add zobel

Add resistor to tune on IEC711

And if you are recreating 100ohms ER4S

Use high impedance BK

 

[eunice]

@dhruvmeena96
@eunice
@Shilohsjustice
And all you other pros..... which recipe would you suggest for a mastering ciem with good detail in low/high mids and good Triebleextension with also low impedance(easy to drive)??? Bass should be there but is not of the essence!
so which one....

1. Dhruve‘s recipe with ed30761+2389D and U-Pad
2. MASM pro
3. Finale 2
4. Finale 3

go.......

I did not build 1, so don’t know about that.
I would suggest finale 2 with a slight EQ to flatten the bass. If EQ is no Option, go for Finale 3, but it is an advanced build.
A few links:


Masm 3 pro https://crcit.net/c/4c8ad023

BS6 + Zobel https://crcit.net/c/49f54ed9

Finale 2 Reference CIEM https://crcit.net/c/7d75c8a5

Finale 3 CIEM https://crcit.net/c/bd30416c

Comparison MASM with resonator vs BS6 (and others): https://www.head-fi.org/threads/home-made-iems.430688/page-603#post-14961816

Comparison Finale 2 Reference, Finale 3, BS6: https://www.head-fi.org/threads/home-made-iems.430688/page-627#post-15023250

 

[ElixBerd]

Hello, guys! If anyone's willing to share his own wisdom and know-how, I'm wondering how do you make layer-y almost 3D-like textures when making acrylic shells/faceplates? Like when you pour a shampoo in your hand, that kind.

 

[Bassiklee]

You mean like these?? The three that are not yellow are Kirinite. The yellow one, I bought from eBay. Do a search for knife scales, you'll find all kinds of cool swirled acrylic stuff. I've tried making my own, so far with no success.

 

[ElixBerd]

Yeah, I mean something like this. So it's not possible to do this at home?