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Author Topic: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.  (Read 51297 times)

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Bill Brown

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #510 on: September 14, 2015, 05:31:24 PM »

Interesting, thank you.

The back of the diaphragm is open into a short tube, the end of which is damped by three foam disks stacked on each other, these are the ones removed in the described modification.

Is there interest in me posting my Harman-style EQ curve?  If so, should I post my experimental results here as it is HD650-specific or in the Harman curve thread?

Bill
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juanchotazo99

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #511 on: September 20, 2015, 03:08:32 PM »

I wonder if the dynamat mods in the HD600 thread would do anything for the HD650's distortion figures.
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OJneg

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #512 on: September 20, 2015, 08:00:29 PM »

Is the HD650 driver a sealed capsule, or is it vented at the back?

Open. Should be apparent from pics

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Chris F

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #513 on: September 23, 2015, 05:52:14 PM »

Got the balanced cable I ordered in the mail.  Guy made it from Mogami 2893 instead of 2534 but I'll forgive him.  2893 is thinner/more flexible and probably better for this application anyhow.  Cable is well wrapped, light and it seems like the connectors and reliefs are well done.

Going from SE to balanced on Ragnarok there really is an obvious jump.  On the 650 bass really tightens up, significantly closing the gap in bass performance between it and the LCD-3F.  Also, the soundstage, imaging and general feeling of "space" are significantly improved.  I don't think I will do too much A/B here because it was obvious in the first 10 seconds the balanced connection was better then the SE.

I've also finally acquired the parts to make my own balanced cable (OEM cable + Neutrik Gold) so sometime in the next week or two I'm going to fire up the soldering station at work and learn to solder... wish me luck!

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Judeus

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #514 on: September 24, 2015, 01:37:02 AM »

Sure thing juggheadd :)p1
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Anaxilus

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #515 on: September 24, 2015, 02:03:54 AM »

Sure thing juggheadd :)p1

Is there something you're trying to articulate about his post, or are you chiming in to offer support?
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Judeus

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #516 on: September 24, 2015, 02:52:07 AM »

to offer support lol, i had to buy a balanced hd650 cable to use with my rggy for 100 bux cause i dont know how to soder, would be nice to see a guide for modding stock hd800/650 cables
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Anaxilus

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #517 on: September 24, 2015, 04:30:53 AM »

Cool! I was just wondering as someone could read that post a couple of different ways lol.
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The Alchemist

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #518 on: September 24, 2015, 05:02:08 AM »

Noob Question here and something I read in a post a while back but cannot remember what thread it was in.

I have a pretty simple setup as only my budget will allow at this time (JRiver MC21-->Bifrost Uber USB Gen2-->Valhalla 2 (Stock Tubes - but want Amperex Orange Globes)-->HD650

I have the mods done that were posted (cut the foam around the drivers and removed foam from back of drivers) - I really like the sound. I guess what my question is - Do headphones that are amped sound better louder? Do most of you listen to music rather loudly? Will the HD650 benefit from being cranked at high volumes? I am not sure what is a "normal" listening level, but I would say I am probably around the middle (not too loud, not too soft) if that makes sense  (I guess most people would say they listen not too loud, not too soft but I am not sure how else to put it).
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Anaxilus

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Re: The Amazing Super Duper Underrated HD650. A Headphone That Kicks Serious Ass.
« Reply #519 on: September 24, 2015, 05:06:11 AM »

It's a matter of perspective, but in general dynamics like the HD6xx/800 will sound more dynamic and lively as they get louder and have more power behind them. Stats on the other hand sound much more capable and engaging at lower volumes than said dynamics above.

My perspective is I enjoy to listen at live musical performance levels like up where or near the band is. That's my reference. Other's want loge A row 25 seat C or just to chill out with their tunes. All three preferences will sound different.
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"If you do not change direction, you may end up where you are heading." - Lao Tzu

"The Claw is our master. The Claw chooses who will go or who will stay." - The LGM Community

"You're like a dull knife, just ain't cuttin'. Talking loud, saying nothing." - James Brown
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