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Author Topic: Jerg / Modulor Pads for HE500 - Measurement Results  (Read 22738 times)

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jerg

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #10 on: October 07, 2013, 12:46:58 PM »
Quote from: Drakkard on October 07, 2013, 10:40:55 AM
Does not help with slow bass unfortunately. But otherwise seems very good =)

If you want faster bass you could just roll it off  :)p3. Any slowness in HE500's bass don't really show through measurements IMO so I don't know quite know what you mean.
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Marvey

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #11 on: October 07, 2013, 02:32:41 PM »
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Hands

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #12 on: October 07, 2013, 05:02:09 PM »
I'm really loving the HE-500 and Mad Dog on my vintage receiver. I haven't had the means to try the HE-500 from the speaker taps, but it still sounds fantastic with the HE-500 + JergPads. Hell, the receiver could probably use a good restoration as well, but there's definitely something about power amps/receivers and headphones that just go really well together from what I can tell. (My Sansui 5000A might not measure the best on paper, but it still did surprisingly well on the HPO over my crappy PC sound card loopback measurement setup and given the fact it's 40+ years old with an unknown level of internal work done on it.)
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Drakkard

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #13 on: October 09, 2013, 11:15:42 AM »
Quote from: purrin on October 07, 2013, 02:32:41 PM
Power Amp! I'm serious about it. http://www.changstar.com/index.php/topic,732.0.html
You know, I tried! Not with He-500, but with HE-6 and some other 'phones. It was Pioneer A-717mk2. And just a quick listen on Pioneer A-0012 (it is dual-mono, so only one channel working, lol). Well, I can say, it was not worth it :) Good separate headphone amps were better. Possibly not the best examples, but that's the only I have.
Since then, and Shiit Lyr, I do not believe that power is really the problem driving ortho's. Lyr was a disappointment with orthos, I was wondering what that 6 watts of power really do there.
Not that I do not believe in CA2, it is quite possibly driving HE-500 well. :D But I'm pretty sure not a single amp can correct it's bass in the way I like it to be. I better go with LCD-2 for this, but even there, I only once heard the bass to my liking.
Quote from: jerg on October 07, 2013, 12:46:58 PM
If you want faster bass you could just roll it off  :)p3. Any slowness in HE500's bass don't really show through measurements IMO so I don't know quite know what you mean.
Hm, Isn't this continuous low frequency waterfall on csd plots not indicating slow bass behavior? I was pretty sure it is :-Z
« Last Edit: October 09, 2013, 11:44:53 AM by Drakkard »
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Thujone

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #14 on: October 09, 2013, 12:14:23 PM »
Quote from: Drakkard on October 09, 2013, 11:15:42 AM
Hm, Isn't this continuous low frequency waterfall on csd plots not indicating slow bass behavior? I was pretty sure it is :-Z

The waterfall plots only have the very top end of the bass region on them. I'm guessing once you go below 200Hz you'll never see the noise floor.
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Drakkard

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #15 on: October 09, 2013, 01:29:32 PM »
Oh, correct, did not notice it is cut-out at 200hz
« Last Edit: May 27, 2014, 07:52:30 PM by Drakkard »
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AstralStorm

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #16 on: October 09, 2013, 07:22:37 PM »
For going below 200 Hz you would need a very, very long impulse response and window. I'm talking seconds here, like 2^20 samples.
Not impossible of course.

The subbass D3 boost is likely related to now slightly asymmetrical airflow. Any way this can be improved?
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jerg

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #17 on: October 10, 2013, 01:42:06 AM »
Quote from: AstralStorm on October 09, 2013, 07:22:37 PM
For going below 200 Hz you would need a very, very long impulse response and window. I'm talking seconds here, like 2^20 samples.
Not impossible of course.

The subbass D3 boost is likely related to now slightly asymmetrical airflow. Any way this can be improved?

Like Marv said, the D3 boost is negligible in practice, so I won't bother looking into it. You could though (if you are OCD about it  >:D)!
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Marvey

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #18 on: October 10, 2013, 02:24:01 AM »
Quote from: AstralStorm on October 09, 2013, 07:22:37 PM
For going below 200 Hz you would need a very, very long impulse response and window. I'm talking seconds here, like 2^20 samples.
Not impossible of course.

The subbass D3 boost is likely related to now slightly asymmetrical airflow. Any way this can be improved?


Seal the back vents with electrical tape.
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jerg

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Re: Jerg / Modulor Pads for HE500 - Measurement Results
« Reply #19 on: October 10, 2013, 05:01:42 AM »
Quote from: purrin on October 10, 2013, 02:24:01 AM
Quote from: AstralStorm on October 09, 2013, 07:22:37 PM
For going below 200 Hz you would need a very, very long impulse response and window. I'm talking seconds here, like 2^20 samples.
Not impossible of course.

The subbass D3 boost is likely related to now slightly asymmetrical airflow. Any way this can be improved?


Seal the back vents with electrical tape.

You sure? It doesn't seem to help with HE500, in the other thread where you measured variations of the mod, not relative to open vents + stickers at least

http://www.changstar.com/index.php/topic,1137.msg30594.html#msg30594
« Last Edit: October 10, 2013, 05:18:44 AM by jerg »
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