Hifiman Edition XS Launched
Jun 15, 2022 at 11:38 AM Post #1,817 of 2,784
edition.jpg


New owner here! Very happy of the purchase :) Before making up my mind, the biggest worry is the ugly headband, now I think it is still ugly but surprisingly comfy. Can't comment much on the sound yet, the first impression is open-sounding, natural, very balanced. It's not easy to drive comparing with my AKG 702 or Beyer 770Pro, but FiiO K9 is more than enough to for me even on low gain.
 
Jun 15, 2022 at 5:20 PM Post #1,818 of 2,784
Before making up my mind, the biggest worry is the ugly headband, now I think it is still ugly but surprisingly comfy.

The good news are that once you have these cans on your head, you don't see their headband :sunglasses:

Other than this, congrats about your purchase, these are cool cans :)
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
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Jun 20, 2022 at 2:52 PM Post #1,819 of 2,784
Measured my EXS R/L resistance with a cheap multimeter, L is 16.x, R is 18.X; I think it does show the lacking of QC (doesn't matter what technology the driver is, they should show about the same resistance right?), but I can't hear a difference, which I assume it's also normal.

Have you measured your driver resistance? Are they equal?
 
Jun 20, 2022 at 4:55 PM Post #1,820 of 2,784
Measured my EXS R/L resistance with a cheap multimeter, L is 16.x, R is 18.X; I think it does show the lacking of QC (doesn't matter what technology the driver is, they should show about the same resistance right?), but I can't hear a difference, which I assume it's also normal.

Have you measured your driver resistance? Are they equal?
I have and they are very similar.
What you see there is the influence of contact resistance, between jacks and sockets and meter probes and the jacks.
Bundled cable is not very good, I replaced mine on day two!
 
Jun 20, 2022 at 5:22 PM Post #1,821 of 2,784
Measured my EXS R/L resistance with a cheap multimeter, L is 16.x, R is 18.X; I think it does show the lacking of QC (doesn't matter what technology the driver is, they should show about the same resistance right?), but I can't hear a difference, which I assume it's also normal.

Have you measured your driver resistance? Are they equal?
This does not show a lack of QC. It shows a potential defect in the driver or the influence of other factors as Kentajalli points out. Not the same.

And I say potential because I have no idea what the spec limits for these drivers are or if they should be perfectly matched or not (I know nothing about electronics, but I do know something about manufacturing). There is something called manufacturing tolerances, which define upper and lower specification limits. As long as the part falls within those limits, it's acceptable. Outside of the spec limit, and it's considered defective.
 
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Jun 21, 2022 at 11:55 AM Post #1,824 of 2,784
This does not show a lack of QC. It shows a potential defect in the driver or the influence of other factors as Kentajalli points out. Not the same.

And I say potential because I have no idea what the spec limits for these drivers are or if they should be perfectly matched or not (I know nothing about electronics, but I do know something about manufacturing). There is something called manufacturing tolerances, which define upper and lower specification limits. As long as the part falls within those limits, it's acceptable. As long as the part falls within those limits, it's acceptable. Outside of the spec limit, and it's considered defective.
You are right! I tested with an alternative method and the drivers all show up as 16.x ohm, and the the stock cable shows difference in about 2ohms. can't believe they can't provide a decent cable to go at this price point.
 
Jun 21, 2022 at 12:50 PM Post #1,825 of 2,784
You are right! I tested with an alternative method and the drivers all show up as 16.x ohm, and the the stock cable shows difference in about 2ohms. can't believe they can't provide a decent cable to go at this price point.
Told ya!
Scientificly it shouldn't , but I made a cable with single solid core for each conductor (pure silver , 0.6mm annealed , means soft! ) and quality jacks.
it really made a difference.
cost to me, less than £20 for materials.
 
Jun 21, 2022 at 4:08 PM Post #1,827 of 2,784
there are a lot of DIY cables in Etsy. I bought one and it is excellent
 
Jun 21, 2022 at 5:26 PM Post #1,829 of 2,784
Is this a joke?
DIY cable, and you bought one ready made?
Is there a contradiction ?
Whether it is hand made by me or by someone else does not make it a non DIY cable
 

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