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Author Topic: Martin Logan's Mikros 90  (Read 9248 times)

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MuppetFace

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Re: Martin Logan's Mikros 90
« Reply #30 on: February 24, 2014, 11:51:51 AM »
^ Perhaps both?
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ultrabike

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Re: Martin Logan's Mikros 90
« Reply #31 on: February 24, 2014, 06:23:34 PM »
Possible I had a defective can. Might explain the channel imbalance. The lack of bass was present on both channels though.

If someone else wants to ship their cans for measurements, your more than welcome! :)p7
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insidious meme

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Re: Martin Logan's Mikros 90
« Reply #32 on: February 25, 2014, 04:26:34 AM »
^^ Yeah, if anyone here would admit to having them. Oh, that makes me one. I wouldn't mind lending it for measurements, provided you're not too far away. :)p7

The shill hype is pretty rampant. But then again, it's like the same 5 people posting in that thread continually.
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ultrabike

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Re: Martin Logan's Mikros 90
« Reply #33 on: February 25, 2014, 06:45:36 AM »
PM sent :)
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MuZo2

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Re: Martin Logan's Mikros 90
« Reply #34 on: February 25, 2014, 02:14:52 PM »
Does the pads make it difficult to measure and also reason for lack of bass in measurement ?
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ultrabike

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Re: Martin Logan's Mikros 90
« Reply #35 on: February 25, 2014, 06:40:21 PM »
To some extent.

I measured them on a flat and non-leaky baffle (like I did with most closed cans and my last electrostatic measurements) given the pads seem to be designed for seal. This should avoid excessive bass loss. But as you can see from the results, the bass measured quite below the rest of the spectrum.

These cans were actually quite consistent for any given orientation (measured like 10 times per headband orientation). As long as I kept the orientation roughly the same, I got quite repetitive results. The largest variation happened in the bass area as the headband got moved towards the "front". This was quite obvious in listening impressions as well. The bass fills in.

What I think happens is that the pads get squeezed as the headband moves forward, reducing the air gap the driver has to drive which in turn may increase bass.

However, they were still lean sounding (and measuring).

I brought my KSC-75s to my friend and after some quick comparos it was quite obvious to both of us that the bass of the Mikros 90 was bellow that of the Koss cans. Since I have the cheapy Parts-Express headband, my friend was a bit shocked at what he perceived better tone balance (and overall sound quality) from a much more humble looking headphone.
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Tari

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Re: Martin Logan's Mikros 90
« Reply #36 on: February 25, 2014, 06:53:01 PM »
It was probably plugged into the liquid lightning.  Normally its deadpan flat down to 20.
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ultrabike

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Re: Martin Logan's Mikros 90
« Reply #37 on: February 25, 2014, 07:11:59 PM »
 :)p13 Should have used one of those Kavalli Gilmore Super Sacred High Virginity amps. Like the O2+ODAC, wire-with-gain, only moar.
« Last Edit: February 25, 2014, 08:15:28 PM by ultrabike »
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ultrabike

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Re: Martin Logan's Mikros 90
« Reply #38 on: February 25, 2014, 08:18:33 PM »
The cans that I measured could have been defective. If someone has an extra pair, I have no problem giving them another shot :)p2
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cn11

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Re: Martin Logan's Mikros 90
« Reply #39 on: February 26, 2014, 07:09:48 PM »
I have a pair I could send you. I'd be very curious to see how it measures too, because my pair actually has a very healthy bass response. When I first got it, on first listen I was like 'sheesh!!! the bass is crazy big'... so I'm wondering too if your pair has something wrong.

Overall, I am certainly not behind this headphone like that ridiculous hyping thread! To me the biggest problem is that there's sort of a congested nature to the upper mids and treble. I think it's pretty good as a portable, but if I'd paid $200-300 I think I'd be pretty hacked off. At $75 though it's a decent pick up.
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