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HifiMAN HE-6 Planar Magnetic Headphone - Page 724

post #10846 of 19438
Quote:
Originally Posted by Silent One View Post
 

:popcorn:

Interesting... time for midnight reading. 

 

Is this a route you went with for your HE-6?

 

Nope. I'm in the minority of people using a little class D amp with a sensible power rating.

post #10847 of 19438
Quote:
Originally Posted by Armaegis View Post
 
Quote:
Originally Posted by brunk View Post
 

Well, I'll give Armaegis a chance to chime in, but right now it's sounding like more of an expensive complexity than any possible sonic benefit over resistors. Not saying this may be true in this case, but I've seen many designs that are more of an intellectual exercise than what is practical and adequate for the job. I guess you could say I'm an advocate for the K.I.S.S. principle :tongue:

 

If we were keeping it simple, we wouldn't be using overpowered amps and chopping output down with hackneyed resistor networks and making all these silly calculations and trying to find non-existent ideal configurations (actually one does exist... R1=R2=R3=0).

 

So on the basis that y'all are using beefy amps with *grunt*grunt*grunt* more power, I figure ok might as well go all out. Stop wasting all that excess power as heat and make the headphone load appear like a more ideal speaker load. Or for those connecting directly, run your amp in the intended power range rather than squeaking by with just the first few watts (if that) and get closer to the sweet spot (because transistors do have them and generally play better somewhere in the middle of their range)

 

I'm just gonna throw stuff at you guys...

http://www.intactaudio.com/atten_FAQ.html

http://www.zeroimpedance.com/multiplier.html

...http://www.zeroimpedance.com/faq.html#10

 

Take from it what you will. I think it's a better choice than trying to build a magic box with multiple taps for different attenuations.  Maybe that's better for a dynamic which needs that specific output damping factor and stable load (but tell me again why you're trying to use a speaker amp rather than headphone amp then), but with a planar headphone with it's practically resistive load that's kinda perfect for the autoformer.

 

 

 

 

And maybe, just maybe, I'm trying to push you guys off the deep end into the dark side. We have cookies here.

 

Thanks for weighing-in. I was looking at the 'Zero' but trying to figure out the multiples. The box has the ability to step up 4-8-16 Ohm loads times 2-3-4. I'm a bit confused, aren't we trying to reduce what the amps sees from 50 Ohms to 8 Ohms? Instead of the other way around?

post #10848 of 19438
Quote:
Originally Posted by Armaegis View Post
 

 

If we were keeping it simple, we wouldn't be using overpowered amps and chopping output down with hackneyed resistor networks and making all these silly calculations and trying to find non-existent ideal configurations (actually one does exist... R1=R2=R3=0).

 

So on the basis that y'all are using beefy amps with *grunt*grunt*grunt* more power, I figure ok might as well go all out. Stop wasting all that excess power as heat and make the headphone load appear like a more ideal speaker load. Or for those connecting directly, run your amp in the intended power range rather than squeaking by with just the first few watts (if that) and get closer to the sweet spot (because transistors do have them and generally play better somewhere in the middle of their range)

 

I'm just gonna throw stuff at you guys...

http://www.intactaudio.com/atten_FAQ.html

http://www.zeroimpedance.com/multiplier.html

...http://www.zeroimpedance.com/faq.html#10

 

Take from it what you will. I think it's a better choice than trying to build a magic box with multiple taps for different attenuations.  Maybe that's better for a dynamic which needs that specific output damping factor and stable load (but tell me again why you're trying to use a speaker amp rather than headphone amp then), but with a planar headphone with it's practically resistive load that's kinda perfect for the autoformer.

 

 

 

 

And maybe, just maybe, I'm trying to push you guys off the deep end into the dark side. We have cookies here.

OK I get it. I knew it would be wasting very little power as a benefit, but I didn't realize just how much. However, I have one qualm. Can you divide/multiply more than 4? For example, my HE-6 is actually 70 ohms, not 50. That means the lowest it can go for me is 17.5 ohms. If I'm going to do this, I want to reach 8 ohms. That means I need a factor of 9...

 

Taken from FAQs:

10) What happens if I run them backwards?

Most everybody uses the ZEROs to MULTIPLY the speaker's impedance by connect the BLACK and WHITE leads to the speaker, and connecting two of the other four leads to the amplifier. In contrast, you can use the ZEROs to DIVIDE the speaker's impedance. This can be used to optimize your speaker's impedance to the rare amplifier that prefers a low impedance speaker, like the Decware Zen tube amplifier that has only a 2 ohm output tap. This can be done by connecting the BLACK(-) and WHITE(+) leads to the AMPLIFIER, and connecting two of the other four leads to the SPEAKER.

-Divide speaker's impedance by 2 = YELLOW (+) & BLUE (-) to Speaker (ie. 8 ohm speaker becomes 4 ohms)

-Divide speaker's impedance by 3 = YELLOW (+) & BROWN (-) to Speaker 

-Divide speaker's impedance by 4 = GRAY (+) & BROWN (-) to Speaker


Edited by brunk - 12/13/13 at 11:40pm
post #10849 of 19438

links at the bottom for other multiples... http://www.zeroimpedance.com/multiplier.html

 

I don't see any 9x, but the 8x should be close enough.


Edited by Armaegis - 12/13/13 at 11:45pm
post #10850 of 19438
Quote:
Originally Posted by Armaegis View Post
 

links at the bottom for other multiples... http://www.zeroimpedance.com/multiplier.html

 

I don't see any 9x, but the 8x should be close enough.

Oh ok, very cool! I missed that when skimming through :tongue:

 

Just to verify i read it correctly, it's the group 2 config, and i would connect blue/yellow to amp, then use white/gray and brown/black to my HE-6? No wait, it's the opposite? :confused_face_2: lol.

 

EDIT: This is what I get when I am up at 2AM, my brain is ready for a shutdown for the day :tongue:


Edited by brunk - 12/14/13 at 12:04am
post #10851 of 19438
Quote:
Originally Posted by brunk View Post Warning: Spoiler! (Click to show)
 
Quote:
Originally Posted by Armaegis View Post
 

links at the bottom for other multiples... http://www.zeroimpedance.com/multiplier.html

 

I don't see any 9x, but the 8x should be close enough.

Oh ok, very cool! I missed that when skimming through :tongue:

 

Just to verify i read it correctly, it's the group 2 config, and i would connect blue/yellow to amp, then use white/gray and brown/black to my HE-6? No wait, it's the opposite? :confused_face_2: lol.

 

EDIT: This is what I get when I am up at 2AM, my brain is ready for a shutdown for the day :tongue:

 

 

Thanks everyone! I discovered/read the FAQs after posting :rolleyes: you know, like Christmas... putting aside manuals yet, putting together the gift! In reverse, I'd be looking at 15.6 Ohms to match my 16 Ohm amps...

 

I'm thinking about taking one for the team.

:popcorn:

post #10852 of 19438
Quote:
Originally Posted by Silent One View Post
 

 

Thanks everyone! I discovered/read the FAQs after posting :rolleyes: you know, like Christmas... putting aside manuals yet, putting together the gift! In reverse, I'd be looking at 15.6 Ohms to match my 16 Ohm amps...

 

I'm thinking about taking one for the team.

:popcorn:

Well :wink_face: that would be awesome, but at "ZERO-Autoformer $540/pair" perhaps there is less expensive option lurking about that Armaegis can point us to? I'm off to bed, so I am not digging for the solution lol.

post #10853 of 19438
Quote:
Originally Posted by Armaegis View Post
 

links at the bottom for other multiples... http://www.zeroimpedance.com/multiplier.html

 

I don't see any 9x, but the 8x should be close enough.

 

Do you have a 'Zero?' I'm very excited! Wanna order right now and get it shipped Saturday morning. :blink: Maybe I should sleep first (sunrise to noon) and give it a bit more thought. If y'all think I can push the '6' to the next level, I'll do it right now!

post #10854 of 19438
Quote:
Originally Posted by brunk View Post

 

 

Well :wink_face: that would be awesome, but at "ZERO-Autoformer $540/pair" perhaps there is less expensive option lurking about that Armaegis can point us to? I'm off to bed, so I am not digging for the solution lol.

 

ooh... that's a bit pricey. :o But what the :D heck, this is AUDIO! I've gotten used to eating Soup for One. 

post #10855 of 19438
It's not the money here , it's in my situation not something I want to do. Having owned speakers with low imp, the auto trans is used to compensate
For the lack of a amp up to the task. I own krell,s as well as aragon amps both designed to handle 1 ohm loads.

I know some people here want a really large amp to use with headphones. And I get this as I have a couple. But resistors are relatively safe to play with.
As it not playing loud enough or to loud to soon as being the side effects . But using an toroidal style auto trans former . Well you people are going down the road
To pending doom with a small miscalculation . So not with my headphones..... The reason is that now you have to calculate both input and output
Power and you have no real safeguard as in lowering the volume. As even with the volume down you could still damage the amp.

How ever I think it is an idea I will follow just not with my headphones lol. One last point as this was a way to cheat on a cheaper amp with speakers
And speakers have a true imp. Where planers are mostly not. I say we do. Ot know how it will effect the sound either.

Great reading though. And maybe some others can way in on this as I do not claim to have amp design experience. Just a guy buying stuff .

Al d
post #10856 of 19438

I used the Wa234 with the HE6 this morning and they are very synergistic an have a very wide sound stage. Rolled in the RCA 5U4 G and a pair of Tung Soll BGP 6sn6GT and the sound was pristine and very liquid.

post #10857 of 19438
Can ypu try the HD800 as well. Please
post #10858 of 19438

I have and it sound excellent. I have all the flagship here and most of them anyway and no matter which headphone I been using they are all reference quality. Tube rolling made them even better.

post #10859 of 19438
Quote:
Originally Posted by Silent One View Post

 

I'm thinking about taking one for the team.

:popcorn:

 

We will reward you with praise and adulation and internet smileys.

post #10860 of 19438

My dear fellow HE-6-lovers, the reign of our beloved headphones is not over yet.

While the LCD-X are excellent headphones, they certainly don't outclass the 3-years old HE-6.

 

I just wanted to reassure you about that :D

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