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HifiMAN HE-6 Planar Magnetic Headphone - Page 675

post #10111 of 15144

ah that pic makes sense, plastic cups must be originally some cheap silver color. so when they put the black paint, the silver kinda goes thorugh, the paint coat isn't thick enough, so it creates that diluted black color like a sharpie. 

 

they would need to make a better finish and more paint to make it a glossy piano black like it should be.

post #10112 of 15144
Quote:
Originally Posted by wuwhere View Post
 

 

Clever indeed. I have another pair of the same stock copper cables. I'll hard-wire them using double stock cable, biwire.

 

I haven't measured the stock cable since I don't have a caliper, I believe this was asked before and they are 24awg.

Caution on the bi-wire. Read my previous post before doing so as this could be why I am getting such high resistance.

post #10113 of 15144
Even if it is 24 gauge that's at least 4 ohms and at 10 watts into 50 ohms that is about 2 volts lost in the wire alone . At about 22 volts to create 10 watts that would be a loss of 11% in power transmission. If this was speakers it would make you need about 11% more power alone.

Al D
post #10114 of 15144
Putting wire in parallel will halve the resistance. Cutting this done to about 5.5 % loss. It appears with these headphone being more like speakers you people have me thinking bigger wires will greatly help in amp power .

Al D
post #10115 of 15144
Quote:
Originally Posted by brunk View Post
 

Caution on the bi-wire. Read my previous post before doing so as this could be why I am getting such high resistance.

If I understand "bi-wire" correctly, you are running multiple insulated conductors in parallel from the connector to the earcup?  So instead of 1 pair for each driver you have 2?  So, even if the wire impedance was substantial (and its not) then bi-wiring would actually help as the DC impedance would sum as resistors in parallel.  Per Wikipedia article on American Wire Gauge, with 26 AWG copper you've got 0..13 ohms per meter in parallel pairs giving you effectively 0.07 ohms per meter per leg or 0.14 ohms per meter in series with the driver.

 

Or am I off in another county?

post #10116 of 15144
Quote:
Originally Posted by brunk View Post
 

Caution on the bi-wire. Read my previous post before doing so as this could be why I am getting such high resistance.

 

Biwiring essentially doubles the area which should half the resistance. The length does not increase.

post #10117 of 15144
Quote:
Originally Posted by ALRAINBOW View Post

Even if it is 24 gauge that's at least 4 ohms and at 10 watts into 50 ohms that is about 2 volts lost in the wire alone . At about 22 volts to create 10 watts that would be a loss of 11% in power transmission. If this was speakers it would make you need about 11% more power alone.

Al D

Where do you get 4 ohms?  24 AWG copper is is ~0.08 ohms per meter.  You'd have to have 50 meters of wire to approach 4 ohms...

post #10118 of 15144
Quote:
Originally Posted by wuwhere View Post
 

 

Biwiring essentially doubles the area which should half the resistance. The length does not increase.

Here's a simple experiment to perform to verify this. I would do it myself if i had a significant amount of speaker wire on hand, but i do not.

 

Take a single 10ft. piece of wire and measure it. now add a second 10ft piece of cable, twist them together at both ends and measure it. What do we get for each result?

post #10119 of 15144
Quote:
Originally Posted by potterma View Post
 

Where do you get 4 ohms?  24 AWG copper is is ~0.08 ohms per meter.  You'd have to have 50 meters of wire to approach 4 ohms...

I could be wrong, but i think the amount and awg of inner cable strands, and the geometry makes a difference with resistance.

 

Where's a cable expert when we need one lol

post #10120 of 15144
Quote:
Originally Posted by brunk View Post
 

I could be wrong, but i think the amount and awg of inner cable strands, and the geometry makes a difference with resistance.

 

Where's a cable expert when we need one lol

 

The AWG resistance per unit length is in that link that potterma posted above. Take a look at it.

post #10121 of 15144
Quote:
Originally Posted by brunk View Post
 

I could be wrong, but i think the amount and awg of inner cable strands, and the geometry makes a difference with resistance.

 

Where's a cable expert when we need one lol

Lets do a thought experiment.  Take two resistors... Solder them in parallel...  What do you get?  Reciprocal of the sum of the reciprocals, yes? If they are the same resistance you get half the resistance.

 

Now, take two capacitors and solder them in parallel.  What do you get?  The sum of the individual capacitances.  Do the same for two inductors.  They add like resistors.

 

So, with bi-wiring, your characteristic impedance changes in a complex manner depending on the interaction of the paralleled conductors.  The DC resistance, however is cut in half, assuming you didn't screw up the termination and have a huge impedance due to a cold solder joint!  :)

post #10122 of 15144
Quote:
Originally Posted by Silent One View Post
 

 

No idea on the cotton. Wish I could confirm sumthin'. Currently the system is in 19 pieces, as I re-configure it for digital play tonight away from analogue. Glad you posted that pix, as it makes it easy to see now what y'all were talking about. Yup, I got Piano Black... happily so!

 

What I suspect - without proof, mind you - is that HiFiMAN is rolling with whatever it's getting from the supplier, from batch-to-batch. 

 

 

May we see a picture of how a piano black HE-6 looks like exactly, in contrast to the so-called Sharpie HE-6 that most of us seem to own?

post #10123 of 15144
Quote:

Originally Posted by songmic View Post
 

 

May we see a picture of how a piano black HE-6 looks like exactly, in contrast to the so-called Sharpie HE-6 that most of us seem to own?

953299

post #10124 of 15144
Quote:
Originally Posted by brunk View Post
 
 

19 pieces, dang! Reminds me of my 9.2 home theater system and why I haven't bothered to take it out of storage yet lol. I don't want to de-rail the thread, but would you mind PM'ing me what you got? If you don't want to, I don't blame you lol :tongue:

 

The other pieces of the rotation...

 

830859

post #10125 of 15144
Quote:
Originally Posted by Silent One View Post
 

953299

 

Do you usually listen to your HE-6 using those pleather pads? I never tried the stock pleather pads, replaced them with the stock velour pads as soon as I received my HE-6 because many people said that velour is better sounding. I personally think pleather looks better; these velour pads collect too much dust.

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