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Topping DX3 Pro+ for very low impedance headphones? (Hifiman Edition XS)

propaganda1

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Hi guys,

I need some help picking out an amp+dac stack/combo for my Hifiman Edition XS's. According to Hifiman, the Edition XS has an impedance of 18ohms (which is very low from what I have seen, I am a noob so bear with me) and a sensitivity of 92dB. When I was reading the review of the Topping DX3 Pro+, Amir mentioned that the amp doesn't like very low impedance headphones. Would you be able to recommend me an amp/DAC around the same price that would be suitable for my headphones?

Thanks,
 

staticV3

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Amir mentioned that the amp doesn't like very low impedance headphones.
I suspect that was a measurement error. When WolfX-700 measured the DX3Pro+ on his APx555, it didn't mind a 16Ω load at all:
THDN-Ratio-vs-Measured-Level (2).jpg

When you compile the data into max Vrms vs load graphs, it looks like this:
Adobe_20220427_111802.jpg

Needless to say, something went wrong during one of those measurements.
 
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propaganda1

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I suspect that was a measurement error. When WolfX-700 measured the DX3Pro+ on his APx555, it didn't mind a 16Ω load at all:
View attachment 202735

When you compile the data into max Vrms vs load graphs, it looks like this:
View attachment 202737

Needless to say, something went wrong during one of those measurements.
I see, thank you very much for the response. Would you say the DX3 Pro+ would be the most suitable for my headphones? It is very feature-rich but a lot of the things I am not really going to use, so I'm just looking for a bunch of recommendations from people that know much more than me. I'd be happy to spend up to £200.

Thank you!
 

Hamster

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You did not state your player source so I assume you are using USB from a PC desktop/laptop and currently you don't care about balanced. I would advice you to go for a stack instead of all-in-one because it is easier to upgrade one part at a time (which you will, if your interest in audio grows).

Bare minimum DAC: Topping D10s ($99)
I recommend Topping E30 ($150) for AKM DAC chip. I prefer AKM sound (more musical & natural) than Sabre sound (more digital, artificial reproduction).
King of budget amp will be Topping L30 ($150)

I limit my suggestions to one brand for simplicity and for their performance-to-price ratio. Of course you can look at other brands like SMSL, Schiit etc for their similar offering.

Edition XS is getting all the rave reviews in 2022 and I hope to own one some day too. Happy listening!

-Hamster
 

Zoide

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There is no such thing as a musical or "digital" sounding chip if your DAC circuit is properly designed.
 
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jasonhanjk

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For IEM I don't recommend DX3 Pro but with your HP I think it's fine. :p
 

Hamster

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Reading this kind of stuff always makes me smile, and let's not say if it's posted in an audio science oriented forum. :D
It has been my consistent (anecdotal) experience with ESS 9018 9028 9038 & AKM 4490 4493 4497. If you want to show me a graph and laugh at me, fine, it is your opinion. I listen with my ears, not my eyes.
 

Doodski

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It has been my consistent (anecdotal) experience with ESS 9018 9028 9038 & AKM 4490 4493 4497. If you want to show me a graph and laugh at me, fine, it is your opinion. I listen with my ears, not my eyes.
Do you listen and compare using blind testing methodology or do you use it sighted for a week and then try another one?
 

Merkurio

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It has been my consistent (anecdotal) experience with ESS 9018 9028 9038 & AKM 4490 4493 4497. If you want to show me a graph and laugh at me, fine, it is your opinion. I listen with my ears, not my eyes.

And that's the main flaw of your "consistent experience", naively ignore that your ears are not immune of being biased by your brain. :)

That's what controlled blind tests are for, to actually listen with your ears and not skew the results with your eyes and brain knowing which is which.
 

Audiofire

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According to Hifiman, the Edition XS has an impedance of 18ohms (which is very low from what I have seen, I am a noob so bear with me) and a sensitivity of 92dB. When I was reading the review of the Topping DX3 Pro+, Amir mentioned that the amp doesn't like very low impedance headphones.
Topping DX3 Pro+ has 0.1 ohms output impedance for headphones, that fits really well with Hifiman Edition XS.
 
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