[et.haan]

there is DFK also

yeah, i keep forgetting about DFK. From 2008, probably early DWFK. Spike at 3khz, good midrange for harmon response.

@et.haan

yes RAB 32257 with white filter. Unless you have a different preference.

Also, SR-32453 with white filter is very neutral. Hard to drive, maybe try a zobel.

Its not CL but ci(CI)

Yeah, i know, bad habit
I saw it written as Cl once and know I keep saying it
It annoys me too lol

 

[et.haan]

Who is the reviewer

Its 32257

@et.haan

Its not CL but ci(CI)

Now Andromeda slayer

Its simple

HODVTEC 31618
Zobel from DCR
Yellow damper near spout

2354
Zobel from DCR
Orange damper near spout

Both in parallel

Same lenght tube on both driver
Use the small size damper

Because both driver will have 1mm ID tube



SWFK31736
Cross so that it can create a 8kHz peak on a system with resonance at 8kHz but also not adding to mids

Damperless
2mm ID tube



As per orignal Andromeda

They low passed the mid and woofer
And the SWFK impedance makes it very weird

Bad Amps will make it brighter


This one avoids thats and keeps impedance superlow


This would measure like 2.4ohms flat


So do add some resistor in series to it


2354 inductance is 1.5mH
HODVTEC inductance is given in datasheet

Nicely done
Would this be easier to drive than original Andro
Also Andro is good becasue meh DAP's give good improvement, from what I have heard
Iphone dongle to Dragonfly is a big improvement
Dragonfly to anything nicer, improvement is negligible.

Good portable endgame

Is sonion mid cheating? maybe
We dont care though lol

Damperless SWFK is the secret. I think they use it like the EST, just a cherry on top. Gives it those perfect highs.

 

[et.haan]

This gonna make some Andromeda fans bleed..

I am like

Seriously
Why


Plus I have been spoiled so much by different iteration of Harman kardon profiles and some of my specific tuning that now I feel Andromeda is just shimmer...nothing more...

Andromeda when I heard for first time was like wow..

But after hearing Noble khan, 64audio U12T, Custom Art FIBAE 7 universal , FIBAE black and Warbler prelude...I feel Andromeda lacking everywhere

Wow, there really has been a big improvement in IEM's over last few years
I need to hear some nicer IEM's ASAP.
Nicest headphones I have heard are 650's. Nicest iem..... My sr build.

Well done though.
What app is this?
Green is response, grey is impedance, right? or green is phase? lol

 

[dhruvmeena96]

Nicely done
Would this be easier to drive than original Andro
Also Andro is good becasue meh DAP's give good improvement, from what I have heard
Iphone dongle to Dragonfly is a big improvement
Dragonfly to anything nicer, improvement is negligible.

Good portable endgame

Is sonion mid cheating? maybe
We dont care though lol

Damperless SWFK is the secret. I think they use it like the EST, just a cherry on top. Gives it those perfect highs.

Can try EST

Its a choice

 

[dhruvmeena96]

Wow, there really has been a big improvement in IEM's over last few years
I need to hear some nicer IEM's ASAP.
Nicest headphones I have heard are 650's. Nicest iem..... My sr build.

Well done though.
What app is this?
Green is response, grey is impedance, right? or green is phase? lol

Green is impedance
Grey is phase

And thats what make Andromeda so much less technically advance

I feel Andromeda is crap in electrical and electronics department

And tricks ear in having airy soundstage but is 2D panned wide

Its a cheat iem

 

[et.haan]

Green is impedance
Grey is phase

Well done. Dayton DATS v2?

 

[dhruvmeena96]

Well done. Dayton DATS v2?

No...its a measurement of a friend
But thats not the point

See the impedance

Andromeda is electrically garbage..

Tried with old amp
And bass vanished and everything is sharp and harsh

Worry not

New one will not swing

Plus

I think its better to L-pad woofer and mid combo because andro is 100dB on midrange point

That will make tweeter shine too

 

[et.haan]

Can try EST

Its a choice

yeah I would like to see

No...its a measurement of a friend
But thats not the point

See the impedance

Andromeda is electrically garbage..

Tried with old amp
And bass vanished and everything is sharp and harsh

Worry not

New one will not swing

Plus

I think its better to L-pad woofer and mid combo because andro is 100dB on midrange point

That will make tweeter shine too

Would dats v2 give same result?
Lol I thought it was response of just the SWFK. That’s bad.

How about: Lowering HODVTEC to ED levels
Lower ED and HODVTEC maybe 3-5db and letting ED play higher
Or replace ED with Sonion mid

 

[dhruvmeena96]

yeah I would like to see


Would dats v2 give same result?
Lol I thought it was response of just the SWFK. That’s bad.

How about: Lowering HODVTEC to ED levels
Lower ED and HODVTEC maybe 3-5db and letting ED play higher
Or replace ED with Sonion mid

I am still building it

Will share whole design when complete..

 

[et.haan]

Would a dayton audio DATS product work on IEM’s? I worry about too much current

If not what do you guys use for testing impedance

 

[eunice]

If not what do you guys use for testing impedance

RoomEqWizard with a simple jig: https://www.roomeqwizard.com/help/help_en-GB/html/impedancemeasurement.html

 

[alpha421]

Not sure if this is the correct thread, but I got some naked Massdrop Plus drivers (triple BA drivers) and its guts connected to what looks like SMD resistors. The damn shells cracked/shattered after being sandwiched in between my car door while I had them in my parka lower hand-pocket. I'm assuming there isn't any damage to the drivers and its wired network, but I can't guarantee it as I have no way of validating.

My plans to sell them has been foiled. Boo-the-damn-hoo to me.

Anyhoot, I'm assuming they can be repurposed by someone here. They are free, but ask for shipping cost of $4 CONUS and $12 International. I'm sure assuming the drivers are all functional, they are worth a lot more than the shipping cost. Just PM me.

And so there's no confusion, it's just the driver network and little piece of broken shell with the 2pin female connector.

 

[sanekn]

Guys hey, long time no see.

So it's been a while now i didn't touch my iem stuffs. My pair is died after a drop at hard floor. Recently realised that i had poor results because used 395nm leds for curing and shells were constantly inconsistent in thickness, sometimes had holes in it. So i bought some expensive-ass 365nm leds, a power supply and some resistors from mouser (LTPL-C034UVH365 is the number for those leds).

SO i took 10 of them and wanted to wire them in 5 parallel 2 series. But i'm a huge bum in electronics so if anyone can help me to figure out if i did the math right before i kill 50€ worth of stuff...
I have a 12v 3a power supply and after all the calcuations i assumed i need a 9ohm resistances, leds are 3.8v and 500mA. Can anyone confirm this clumsy drawing?
Bought 12 and 30 ohm resistors just in case.

Wanted to do 2 rows 5 columns of those in the 100mm pvc pipe with two mirrors on top and bottom.

Thank you in advance guys,

Have a nice one.

 

[et.haan]

Not sure if this is the correct thread, but I got some naked Massdrop Plus drivers (triple BA drivers) and its guts connected to what looks like SMD resistors. The damn shells cracked/shattered after being sandwiched in between my car door while I had them in my parka lower hand-pocket. I'm assuming there isn't any damage to the drivers and its wired network, but I can't guarantee it as I have no way of validating.

My plans to sell them has been foiled. Boo-the-damn-hoo to me.

Anyhoot, I'm assuming they can be repurposed by someone here. They are free, but ask for shipping cost of $4 CONUS and $12 International. I'm sure assuming the drivers are all functional, they are worth a lot more than the shipping cost. Just PM me.

And so there's no confusion, it's just the driver network and little piece of broken shell with the 2pin female connector.

interested, mine posting a closer photo of the woofer, and any text if you can read it? Its sonion 3800 series, what else i’m not sure

 

[alpha421]

I just PM you the info. Not going to disclose the driver models in a public forum out of respect to MD/Drop.