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Author Topic: Audio Zenith PM-X  (Read 18161 times)

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MuppetFace

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Re: Audio Zenith PM-X
« Reply #130 on: December 20, 2014, 02:13:16 AM »
Quote from: Sweded on December 19, 2014, 10:11:06 PM
The PM-1 was a disappointing listen with its rather dull and unengaging sound. And the pads didn't work at all with my ears creating irritation from the start.
I much rather take the LCD-2 fazors even though the weight is too high.
This mod is needed for this headphone IMO just like a mod is needed for the HD800, perhaps even more so.

The question begs to be asked, then: can this mod do anything about that unengaging sound? You can tinker with the FR and make it flat, but can you improve the micro dynamics, resolution, "PRaT," whatever-you-want-to-call-it? Some are saying that even at the end of the day, the Oppo driver is still the Oppo driver.
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Hands

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Re: Audio Zenith PM-X
« Reply #131 on: December 20, 2014, 04:17:45 AM »
There are definitely areas that can be improved with mods, but the drivers still have some limitations. I'm not sure the enclosure is ideal, but the stock damping material and configuration OPPO used certainly doesn't do the driver many favors. Now, I'm going to wait on the final iteration of this particular mod before I put in further thoughts, but resolution (in certain ways) and soundstage at the very least seem to be improved over stock PM-1/2.

I probably just like a bit of extra bass and am sure the way I tuned it as such factors into this, but I think the PM-2 I modded myself sounds more dynamic than stock...certainly more engaging/fun.
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Marvey

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Re: Audio Zenith PM-X
« Reply #132 on: December 20, 2014, 05:35:37 AM »
To get back on topic, Alex generously sent me a revised version of the headphones. I am using Gilberto's measurement rig for this. My own V2 measurement looks essentially looks like first revision, except this has sharper peak (so I am not going to bother to post it.) I think Gilberto's measurement rig is more reflective of the sound.

Again, different rigs, different results - just like Jude says in his Head-Fi profile. Closed rigs will cause certain peaks from standing waves within the volume of the cup against the head. Whether or how this effect is heard is debatable.

The FR really is fantastic. It is almost perfect to my ears. Last one was was just a tad bright and lacked some heft in bass. This is just right.
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ultrabike

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Re: Audio Zenith PM-X
« Reply #133 on: December 20, 2014, 05:42:26 AM »
Awesome Marv! Looks like the treble rolls up a bit there. Oppos seem to have that limitation. I think I heard them that way too...

EDIT: Would have to give them a new listen to check out the latest mod iteration.
« Last Edit: December 20, 2014, 06:03:59 AM by ultrabike »
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wnmnkh

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Re: Audio Zenith PM-X
« Reply #134 on: December 20, 2014, 05:44:43 AM »
Quote from: marvey on December 20, 2014, 05:35:37 AM
To get back on topic, Alex generously sent me a revised version of the headphones. I am using Gilberto's measurement rig for this. My own V2 measurement looks essentially looks like first revision, except this has sharper peak (so I am not going to bother to post it.) I think Gilberto's measurement rig is more reflective of the sound.

Again, different rigs, different results - just like Jude says in his Head-Fi profile. Closed rigs will cause certain peaks from standing waves within the volume of the cup against the head. Whether or how this effect is heard is debatable.

The FR really is fantastic. It is almost perfect to my ears. Last one was was just a tad bright and lacked some heft in bass. This is just right.

Wow.
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OJneg

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Re: Audio Zenith PM-X
« Reply #135 on: December 20, 2014, 05:47:34 AM »
I'm curious to give these a more in-depth listen. I thought they sounded great at the SD meet.
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Marvey

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Re: Audio Zenith PM-X
« Reply #136 on: December 20, 2014, 05:48:40 AM »
Quote from: OJneg on December 20, 2014, 05:47:34 AM
I'm curious to give these a more in-depth listen. I thought they sounded great at the SD meet.

I'll ask Alex if I can show it off to you guys. I think you will be fair.
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kothganesh

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Re: Audio Zenith PM-X
« Reply #137 on: December 20, 2014, 06:01:25 AM »
Gosh, that looks very good....Have you mateys listened to various genres on the Pm-X? How well do you think it does with rock? Thanks.
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ultrabike

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Re: Audio Zenith PM-X
« Reply #138 on: December 20, 2014, 06:25:53 AM »
Mmmm. I can see some similarities with the stock (Sachu's) PM-1, but the peak at 10k maybe a little more controlled.



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zerodeefex

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Re: Audio Zenith PM-X
« Reply #139 on: December 20, 2014, 06:29:00 AM »
Wait, you said you used Gilberto's rig? Why does it look EXACTLY like pervnets results? I thought his methodology was just adapted from Ultrabike's, not just copied?
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