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Review and Measurements of New JDS Labs Atom Headphone Amp

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amirm

amirm

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Why low gain better in high level , high gain better in low level , and both stop in 2Vrms?
You can't use this graph for that question. These are *generator* (input) levels, not output. I did another test to cover your question.
 

la2ygoo

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The change to sound caused by different dacs is shockingly much higher than we thought. They may measure 0.0003% thd+n or lower, but they sound very different from each other. Only way that I'm able to believe is in the time domain, the square wave reproduction is drastically different.

agree.
i have yulong da10 ,musiland mu2,they sound different.
and yulong da10's sound mode 1 and mode 2 sound different too.
 

actionmask

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I just put a khadas tone board DAC into Atom amp.
IMG_2439.jpeg
IMG_2454.jpeg
 

tlr

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Nice. I did a similar thing but I didn't want to give up the RCA connectors so I left them on and drilled holes in the side of the Atom case (if I change my mind a piece of electrical tape over the holes should be sufficient). I plan on doing the internal wiring soon to get rid of the cables.

View attachment 23314
 

actionmask

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Nice. I did a similar thing but I didn't want to give up the RCA connectors so I left them on and drilled holes in the side of the Atom case (if I change my mind a piece of electrical tape over the holes should be sufficient). I plan on doing the internal wiring soon to get rid of the cables.

View attachment 23314

Nice!
This site really promotes the sale of khadas and JDS labs.
They should make a big donation.
BTW, I think you can wire khadas RCA output to 3.5mm input of atom amp.
 
D

Deleted member 3566

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Nice!
This site really promotes the sale of khadas and JDS labs.
They should make a big donation.
BTW, I think you can wire khadas RCA output to 3.5mm input of atom amp.

Hopefully not. That would inhabilitate ASR's neutrality/independence -- one of its most reputable qualities.

On topic, looking at the interior of the JDS Atom, makes me wonder why it's so unnecessary wide and long. In any case, there's plenty of room to add a Khadas DAC board there, if JDS ever decided to go down that path. They could "easily" license it and make a ~$200-250 DAC/Amp variant. Would sell like hot cakes and liquidate almost everything on the market, quality-wise. JDS, if you read this: pleeeeeeeeeeeease.
 
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PorchSong

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kprog

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a doubt, what difference in quality or anything is there, between the RCA input and the 3.5 atom input?
It is easier for me to connect for 3.5, as long as it is the same.
 

Veri

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a doubt, what difference in quality or anything is there, between the RCA input and the 3.5 atom input?
It is easier for me to connect for 3.5, as long as it is the same.
Same. Just convenience.
 

caguilar91

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a doubt, what difference in quality or anything is there, between the RCA input and the 3.5 atom input?
It is easier for me to connect for 3.5, as long as it is the same.
Long story short, RCA cables are better than 3.5 mm and will most surely measure a bit better (between cables of comprable quality), however you won't hear a difference so simply use the most accessible to you. Just don't do long runs as they're both unbalanced! ;)
 

kprog

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ok, thanks, I had to decide between. Short cable 1.5m and good quality RCA to 3.5. or 2.5m long cable of worse quality.
I have short of good quality.
I have decided to install it inside my PC, so it will be free of dirt and with a good temperature always jeje
 

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daftcombo

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ok, thanks, I had to decide between. Short cable 1.5m and good quality RCA to 3.5. or 2.5m long cable of worse quality.
I have short of good quality.
I have decided to install it inside my PC, so it will be free of dirt and with a good temperature always jeje

Good, but it is a Khadas toneboard, not a JDS Lab Atom Amp!
 
OP
amirm

amirm

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I have decided to install it inside my PC, so it will be free of dirt and with a good temperature always jeje
I had not thought of someone installing it in a PC. Good thinking!
 
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