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Martin Logan Mikros 90 On-Ear Headphones - Page 239

post #3571 of 6488
Ok..it's clearer now the issue..it's about how to control the VOLUME inside each cup..independently.

Nim said toying with the hole, the way he has done didn't help..it just colored the sound...
Ditto putting stuff into the cup, thus far.

Whereas Wayne seemed to managed snuffing his left cup thru some paper streamer or something..
Where is Wayne..he needs to present his thesis/ solution to us for scrutiny.

I m curious too, incase the next new can I opened up is unbalanced..tongue.gif
post #3572 of 6488
There was this instance, where I packed a wall of BlueTac of say about 2mm around the hole...
And on the other side of the cup base, I fixed the hard felt right opposite in the centre.

The double constriction sort of make the can sound small, tinny....
Same effect when I modded a Big Pad onto the driver externally..
The sound also went small n tinny.

Not sure if such info would spark a solution for u.


Or do u have to resort to soldering or attaching resistors to the wires..
I am electrically clueless..untrained..uneducated.


Or buy an amp with LEFT RIGHT volume balance control,,,lolz

rolleyes.gif
post #3573 of 6488
The leather-ring mod being brighter...
Is allowing me to listen at a lower volume in a cafe...
Placido Domingo is sounding v clear with 3D depth details coming thru my iPad.
(normally I kinda max out, almost..my volume. )


Scheeets...just heard a Sony mdr1.... Almost unlistenable., totally destroyed.
Edited by Lorspeaker - 3/11/14 at 3:40am
post #3574 of 6488
Quote hatefulsandwiches
Me, I'm leaving mine alone until I've made sure the sound is fully settled I might eventually try some modding since I still find them a bit congested and rather shouty-sounding in the upper mids, but I'm not massively bothered by it. I got these for a third of their retail price. They look good, they're portable and they're closed so I can use them when working. I'm not going to get caught up in little things.

I still prefer how the MS1s sound, but the MLs serve a different purpose for me and I'm happy with the purchase in the context of that purpose.[/quote]


I had a MsPro..one of the v few cans tat captivated, transfixed me when listening to classicals then.

Cant wait for u to start collecting cheetah skin, elephant hide, Bambi tail for modding...
Think u gonna like the sound u will hear.. If u find the sound is congested n shouty still.
Placido is serenading under a windy moonlight nite now...in some unknown language to some unknown ladies.
Edited by Lorspeaker - 3/11/14 at 3:53am
post #3575 of 6488
Quote:
Originally Posted by Lorspeaker View Post

Quote hatefulsandwiches
Me, I'm leaving mine alone until I've made sure the sound is fully settled I might eventually try some modding since I still find them a bit congested and rather shouty-sounding in the upper mids, but I'm not massively bothered by it. I got these for a third of their retail price. They look good, they're portable and they're closed so I can use them when working. I'm not going to get caught up in little things.

I still prefer how the MS1s sound, but the MLs serve a different purpose for me and I'm happy with the purchase in the context of that purpose.[/quote]

I had a MsPro..one of the v few cans tat captivated, transfixed me when listening to classicals then.

Cant wait for u to start collecting cheetah skin, elephant hide, Bambi tail for modding...
Think u gonna like the sound u will hear.. If u find the sound is congested n shouty still.
Placido is serenading under a windy moonlight nite now...in some unknown language to some unknown ladies.

MSPro was an amazing headphone, super underrated


Anyways, 

Thinking of selling my modded pair + just getting a new original stock headphone, bass had pretty decent quantity in stock iirc

Modding is too variable + difficult!

Meh

post #3576 of 6488
Try duplicating my mod exaactly..see how it sounds...since u wanna sell.biggrin.gif
post #3577 of 6488
Quote:
Originally Posted by Lorspeaker View Post

Ok..it's clearer now the issue..it's about how to control the VOLUME inside each cup..independently.

Nim said toying with the hole, the way he has done didn't help..it just colored the sound...
Ditto putting stuff into the cup, thus far.

Whereas Wayne seemed to managed snuffing his left cup thru some paper streamer or something..
Where is Wayne..he needs to present his thesis/ solution to us for scrutiny.

I m curious too, incase the next new can I opened up is unbalanced..tongue.gif

Lors,

The chamber volumes are different between the L and R cups, due to the extra circuitry and angled "bump-out" in the left cup.

post #3578 of 6488
U pointg out the physical vol ..wat about sound volume..
U hearing soundvol diff too?

If we can shape the cup physicalvolume with blue tac..would tat balance out the sonicvolumediff as such??
post #3579 of 6488
Quote:
Originally Posted by Lorspeaker View Post

Try duplicating my mod exaactly..see how it sounds...since u wanna sell.biggrin.gif

Lors,

Got back inside the BASS-modded pair and removed the Tacky that was covering/sealing the headband tube ports. Also Dynamatted the back of the (plastic) driver casing.   Mids are nicely opened up and BASS is not so thick.  BASS impact/concussion is still a little strong for my ears--BOY, do these things move air when the Hole is opened!

 

Instead of using an elongated piece of rectangular felt at the bottom of each cup, I used a 3/8" semi-circular piece with the straight edge aligned toward the center (rounded edge pointed outward).  Wanted to ask: what was the effect of elongating that felt piece?  Did it attenuate some of the BASS slam?  

 

I am thinking about putting some very porous acoustic material directly over the Hole to retard some of the airflow and attenuate the BASS just a tad.  That way I can move up to higher volumes without the BASS pressure being so domineering.

 

My foam/chamois/Dynamat mod sounds very open.  Bass slam is down/manageable w/bass pitch still excellent, soundstage is very relaxed, mids are more open and full, treble is very transparent.  This mod, with the Auvio cable and the KMF amp sounds just right to me.  

 

But when I want bona fide BASSHEAD slamm with R&R tracks, and really want to plumb the depths of the DEEP, I reach for the LorsMikros(BASS) on my home rig. 

 

:smile_phones: 


Edited by pataburd - 3/11/14 at 6:24am
post #3580 of 6488
Quote:
Originally Posted by Nimzerz View Post
 

Putting the open cell foam over both holes fixed the BASS imbalance almost perfectly but the vocals and only the vocals are much geared toward the left channel.

 

This mod is stupid... too many problems with it

What specific "mod" are you talking about?  The LorsMikros Mod, the Wayne-variation of the Lors, or the enhanced space/mids mod that I just posted?

Just putting foam over the Holes and doing nothing else falls into none of the categories listed above.

post #3581 of 6488
Quote:
Originally Posted by bhazard View Post
 

I'm not enjoying the Mikros 90 as much as everyone here. It's just missing something in the sound, and is uncomfortable.

 

$50 if anyone wants it (or as their 2nd, 3rd, 4th pair)

Make it $50/shipped to 14830 and I'll snap these up.  I am sure that my nephew will love them!!

post #3582 of 6488
Quote:
Originally Posted by Nimzerz View Post
 


Do yourself a favor and never remove that sticker. Never. Only after there is a mod that is widely accepted and explained should you consider it.

That would be the LorsMikros mod which, apparently, you did not fully undertake.

post #3583 of 6488
Quote:
Originally Posted by Lorspeaker View Post
 

 

UPDATE:

A word on the "LorsMikros"....it is an "improvement" over the MikrosHearThruBass :

via a circle of thin foam added under the driverhousing without covering the hole.

i hear a fuller/more forward Mids...less reverb/less ehnancement on the bass...

overall a more balanced kind of sound, more akin to a large can presentation...u get an overall BIGGER sound.

( so i took out the word BASS when naming it...lolz )

Lors,

So you did succumb to the foam!  It is essential to opening up those mids.  :happy_face1:

post #3584 of 6488
If anyone sends a mikros to Spain for 65$ I'll get them.
post #3585 of 6488
Quote:
Originally Posted by Nimzerz View Post
 


They were already burned in for around 50hrs I'd say

More like 200+, as I have been reiterating ad nauseum.

My last stock pair are at about 50-60 hours and the midrange/lower treble is going through an awful "scratchy" mode.  The mids will open up and balance out after this phase.

This is through my fully broken in UPOCC silver cable.

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