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Author Topic: SYNERGISTIC SYSTEM: An awesome setup for the HE500  (Read 8853 times)

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paranoidroid

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #40 on: January 18, 2013, 06:55:09 AM »
Thanks for a very good reply. I totally agree with you, on very dynamic music (classical, etc) you may hit very high peaks briefly and not know it because the average volume is much much lower. Yes it'd be great if amps had a peak current meter so we can know roughly how much headroom we really need.

I have a HE-500 and wonder if it'd sound better with a much more powerful amp, and if it does sounds better if that's due to power or some other reason. I don't listen to my music crazy loud, nor do I listen to extremely dynamic classical so I'd think 116db peaks is definitely enough. That makes me think 500mw of power into the HE-500 is enough (for me). Perhaps I can get SQ gains still, but not necessarily due to more power..
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Marvey

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #41 on: January 18, 2013, 07:02:57 AM »
BTW, Anaxilus came over and we tried the same thing with the HE-5. The HE-5 sounded better from the power amp as well. More open, dynamic, and most of all, better clarity and control in the bass.
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rhythmdevils

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #42 on: January 18, 2013, 07:19:49 AM »
Have you tried a T50rp?
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Marvey

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #43 on: January 18, 2013, 07:20:24 AM »
Hmmm, not yet.
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rhythmdevils

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #44 on: January 18, 2013, 07:22:22 AM »
Maybe it can turn rubber into mila kunis' butt?
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Anaxilus.

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #45 on: January 18, 2013, 07:23:29 AM »
Sadly, the HE5 needs even more juice than the HE500.
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paranoidroid

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #46 on: January 18, 2013, 07:47:10 AM »
The HE-5 is rated at 87db/mW sensitivity so you still only need 0.8W to hit 116db peaks. So unless you're hitting peaks beyond that in dynamics while listening it's not power that is giving it better sound, but something else with the amp that's still a mystery..

Only a real peak current meter will tell you how much of that 8W power you are really 'using'..
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Anaxilus.

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #47 on: January 18, 2013, 08:03:00 AM »
In this case it was a matter of the HE5 needing more gain than the HE500 for the same output.

Btw, the HE500 is 38ohms/89dB, not 46ohms.  http://hifiman.us/Products/?pid=102
« Last Edit: January 18, 2013, 08:09:07 AM by Analixus »
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Solderdude

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #48 on: January 18, 2013, 08:35:30 AM »
Quote from: Analixus on January 18, 2013, 08:03:00 AM
In this case it was a matter of the HE5 needing more gain than the HE500 for the same output.

Btw, the HE500 is 38ohms/89dB, not 46ohms.  http://hifiman.us/Products/?pid=102

The HE500 is spec'd as being 38 Ohm.
It is probably an average value as Jerg measured one driver to be 33 Ohm and the other 46 Ohm so there seems to be quite some spread even in 1 headphone.
The 46 Ohm I 'took' from impedance measurements I trust over claims of manufacturers (namely Tyll's HE500 measurements) and should have typed 47 Ohm b.t.w.
There is a good chance though of people having HE500's close to 38 Ohm.

On the same output VOLTAGE an HE500 is only 1.7dB 'louder' than an HE5 eventhough the efficiency of the HE5 is 3.7dB lower (in POWER) assuming Tyll's measurements were correct.

IMO it makes sense to drive ortho's from a power amp, just like you can easily drive 600 Ohm headphones directly from power amps (it's what they were designed for back in the days)

« Last Edit: January 18, 2013, 08:48:16 AM by Solderdude »
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Use your ears to enjoy music, not as an analyser.

paranoidroid

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Re: SYNERGISTIC SYSTEM: An awesome setup for the HE500
« Reply #49 on: January 18, 2013, 08:42:11 AM »
I've measured many HE-500s out of curiosity and the ones I personally measured ranged between 33ohm - 46ohm so the 38ohm is definitely an average and not all samples will measure that..
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