Martin Logan Mikros 90 On-Ear Headphones
Mar 9, 2014 at 10:02 PM Post #3,466 of 6,782
Oooo so I added that felt ring around the hole to just the right side. Immediate thing I notice as a difference between left and right is the left is much more shrill/sibilant and peaky than the right. Time to do the left side. Also, left side is much more boomy in bass.
 
Edit: Ugh this makes things difficult now because the left side has more bass and is just generally louder than the right...
 
Mar 9, 2014 at 10:08 PM Post #3,467 of 6,782
Made a cable today from an old extension cable I had laying around and a new male plug from the Shack.  Used it most of the day in place of the stock cable and I couldn't hear a difference between the two.


I am not 100% sold on the idea that cable quality can have an impact on what I hear.
 
I ordered three different male to female adapters from Amazon and gave them a try...based my selection on whether or not the male end would fit the Mikros without modification.  The idea here was that a good quality adapter (if there is such a thing) would allow me to use any cable without having to mod.  I could hear a slight difference between the stock cable with and without the adapter...high freq's were almost offensive with the adapters.  I don't know if they are just plain crappy quality (which they all appeared to be), or if it is the introduction of another joint in the line that produces this effect.  I actually like my DIY cable as I don't have a use for the inline controls that come on the stock cable, and there are no microphonics...that was my gripe about the Auvio and Pipeline ET4 cables.
 
Mar 9, 2014 at 10:24 PM Post #3,468 of 6,782
  Oooo so I added that felt ring around the hole to just the right side. Immediate thing I notice as a difference between left and right is the left is much more shrill/sibilant and peaky than the right. Time to do the left side. Also, left side is much more boomy in bass.
 
Edit: Ugh this makes things difficult now because the left side has more bass and is just generally louder than the right...

You are the final confirmation that I will keep my pair unmodded. I will forever feel like my pair is tainted if I do this :D Also I am very clumsy so I will be ripping everything to unreversible and then making it all super unbalanced and being pissed at myself meanwhile :D
 
Mar 9, 2014 at 10:25 PM Post #3,469 of 6,782
  You are the final confirmation that I will keep my pair unmodded. I will forever feel like my pair is tainted if I do this :D Also I am very clumsy so I will be ripping everything to unreversible and then making it all super unbalanced and being pissed at myself meanwhile :D


Don't mod it. It is fun to mod it, but in the end, the stock pair is so balanced that there really is no point IMO. I just hope someone finds a nice mod that can be consistent for everyone and provide great results.
 
Mar 9, 2014 at 10:29 PM Post #3,470 of 6,782
 
Don't mod it. It is fun to mod it, but in the end, the stock pair is so balanced that there really is no point IMO. I just hope someone finds a nice mod that can be consistent for everyone and provide great results.

The idea of "bigger can sound" is appealing but yeah, seems to come at a price for most that mod the pair. When or if I ever get a chance to buy a second pair (really which I wasn't this broke, or I would be buying two this time) I'd have fun modding. But I don't think Ill have a lot of fun modding something when I'm risking something I can not replace easily.
 
Mar 9, 2014 at 10:34 PM Post #3,471 of 6,782
  The idea of "bigger can sound" is appealing but yeah, seems to come at a price for most that mod the pair. When or if I ever get a chance to buy a second pair (really which I wasn't this broke, or I would be buying two this time) I'd have fun modding. But I don't think Ill have a lot of fun modding something when I'm risking something I can not replace easily.


Welp, I am exactly in your position except for the not modding part LOL
 
Mar 9, 2014 at 11:47 PM Post #3,472 of 6,782
The process of "exasperation, n thrill of getting it right...almost " ,
is a path, a risk i took...over a brew in a plastic cup.
Deliberately created a problem, disrupted a small balance,
challenged to find objective results, from illogical mismash..
n maybe.. to arrive at a Bigger Balance, for myself.
 
Failed too many times, i fear a blunted screwthread.
This is too hard for me, surely i can live with what i first had?
But wait, maybe, just one more try...i am bored,
n feeling lucky.:p
 

 
https://soundcloud.com/fileunderdisco/file-under-disco-09-digital
 
Mar 10, 2014 at 12:27 AM Post #3,473 of 6,782
I think I got it pretty solid--only imbalance below 35hz ish.
Any ideas how I could fix that?
 
Mar 10, 2014 at 5:57 AM Post #3,474 of 6,782
I have a few adaptors in my drawer, I roll them once awhile when I felt the urge to change things up abit.
Maybe your modified extension cable hit the one in 4376th chance of it being the same material as the stock cable..
Therefore....
 
Mar 10, 2014 at 10:42 AM Post #3,475 of 6,782
 
Huh, that's interesting. I had extreme mismatch after I took off the cover holes.... waaayyyy more bass in the left driver. The right driver has something in it that you can see, but from what I could tell my left driver didn't, so I figured that I somehow removed the stuff from the left driver and that was causing the imbalance. My theory goes askew though because Lors's picture of his left driver also shows nothing in it. So I don't know what's going on. All I know is that the imbalance was there, and I had to do this to get it fixed:
 

 
 
 
I have no idea if this is also your issue though.


What did you exactly do? I took off the tape..not consistent enough (THE HOLE is SO SENSITIVE!). The left driver has a little more bass than the right depending on the seal and so it would be nice if you told me how you fixed that :p
 
Mar 10, 2014 at 11:53 AM Post #3,476 of 6,782
 
What did you exactly do? I took off the tape..not consistent enough (THE HOLE is SO SENSITIVE!). The left driver has a little more bass than the right depending on the seal and so it would be nice if you told me how you fixed that :p

 
For all I know, my left and right drivers might still be a bit off. They sound close enough to me, but you seem to have a keener ability to hear these kind of differences.
 
At any rate, the "stuff" in my right driver looks like this:
 
 
 
 
I took some label material and cut it in a similar fashion, and put it over the left driver hole, and oriented the opening in the same direction as the opening in the right driver:
 
 
 
 
I then covered both holes with the elastoplast bandaid material.
 
Mar 10, 2014 at 12:05 PM Post #3,477 of 6,782
  The idea of "bigger can sound" is appealing but yeah, seems to come at a price for most that mod the pair. When or if I ever get a chance to buy a second pair (really which I wasn't this broke, or I would be buying two this time) I'd have fun modding. But I don't think Ill have a lot of fun modding something when I'm risking something I can not replace easily.

The Mikros 90 sound excellent stock, agreed.
 
Keep in mind, though, that Lors [and Maxx] undertook the modding path to address concerns from BASSHEADS who wanted more BASS from the MLs.
The last LorsMikros mod successfully achieves greater BASS levels, as intended.
But there are definite gains in soundstage presence, midrange bloom, tonal differentiation and treble definition as well as increased bass response [while preserving bass balance and improving bass articulation] .  All-tolled, I think the modded Mikros 90 are more engaging to listen to on occasion [and I do not consider myself a dyed-in-the-wool BASSHEAD].  
Again, I enjoy both the modded Mikros 90 and the stock Mikros 90 both at home and at work. 
 
Anyway, the BASSHEADS have been addressed.  The modded Mikros 90 should more than satisfy their craving for more BASS.
And most of of us who have tried modding the MLs would agree that it is a fun and informative/rewarding process.  The BASS that these little, unassuming Mikros 90 are capable of reproducing is astounding.
 
 
*EDIT:
Listening to my (2nd) modded set--modded to enlarge soundstage and enhance midrange--right now at work with the Auvio cable.
Nice, BIG soundstage; contoured, warped-and-woofed 3-D presence; lovely full and slightly warmer mids; more magical tonality; full warm BASS--but not head-slamming; nicely delineated highs.  
biggrin.gif
 
"Oh, What a Night" [Four Seasons]: DISCO sounds great!!!
 
Mar 10, 2014 at 12:49 PM Post #3,478 of 6,782
Honestly, I just wish the mod didn't give it a super mid-bass hump. It's really too much..the punch is so much to the point that it distracts me from the real music even if it isn't bleeding into the mids etc
 
Mar 10, 2014 at 12:52 PM Post #3,479 of 6,782
   
For all I know, my left and right drivers might still be a bit off. They sound close enough to me, but you seem to have a keener ability to hear these kind of differences.
 
At any rate, the "stuff" in my right driver looks like this:
 
 
 
 
I took some label material and cut it in a similar fashion, and put it over the left driver hole, and oriented the opening in the same direction as the opening in the right driver:
 
 
 
 
I then covered both holes with the elastoplast bandaid material.

...I think I pushed that "thing" in far into that hole when using the pin....damn
Dunno if that matters
 
Mar 10, 2014 at 1:09 PM Post #3,480 of 6,782
  ...I think I pushed that "thing" in far into that hole when using the pin....damn
Dunno if that matters


Hmm...the left side also has it. Maybe I should "even it out" by doing that to it too? lol
 

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