This is a mini usbdac.
It has no exaggerated data. Only 16 bits 44-48k.
But his voice is good. You can plug in USB and use it directly. Or jump to an external power supply.
I recommend ac9-0. Use ONSEMI 7805 voltage stabilizing IC. Add three 1000uf low ESR capacitors.
in my opinion. The DAC should preferably use an external power supply. It can avoid the sound of hard disk in the computer. Or the noise of your appliances.
There is no need to pursue high data. CD discs also have only 16 bit 44K. But no one will think that the sound quality of CD is not good enough. I also make many 24 bit 32-bit 192-384k DACs. But I don't think it will be better.
The biggest benefit of using usbdac. Not a performance indicator. Instead, it can use ac9-0 power supply.
Plus voltage stabilizing IC. It can solve the interference of computer or mobile phone.
I found a Meizu 16xs mobile phone. Connect it.
It has a good sound without any settings.
It has no exaggerated data. Only 16 bits 44-48k.
But his voice is good. You can plug in USB and use it directly. Or jump to an external power supply.
I recommend ac9-0. Use ONSEMI 7805 voltage stabilizing IC. Add three 1000uf low ESR capacitors.
in my opinion. The DAC should preferably use an external power supply. It can avoid the sound of hard disk in the computer. Or the noise of your appliances.
There is no need to pursue high data. CD discs also have only 16 bit 44K. But no one will think that the sound quality of CD is not good enough. I also make many 24 bit 32-bit 192-384k DACs. But I don't think it will be better.
The biggest benefit of using usbdac. Not a performance indicator. Instead, it can use ac9-0 power supply.
Plus voltage stabilizing IC. It can solve the interference of computer or mobile phone.
I found a Meizu 16xs mobile phone. Connect it.
It has a good sound without any settings.
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It has a dedicated headphone output. MOSFET output is used inside the chip
It uses suspended ground wire. So there is no output capacitance. Good bass can be obtained by connecting headphones.
And its output current capacity is very strong. It can drive almost all headphones. No headphone amplifier is required.
It is recommended to use ac9-0 to switch to external power mode. Will be greatly improved.
It uses suspended ground wire. So there is no output capacitance. Good bass can be obtained by connecting headphones.
And its output current capacity is very strong. It can drive almost all headphones. No headphone amplifier is required.
It is recommended to use ac9-0 to switch to external power mode. Will be greatly improved.
Spare parts. Green shells are not included. about 4 USD.
Finished products. Green shells are not included. About 6 dollars
Finished products. Including the green shell. About 7 dollars😀
My customer comments. It sounds better than pcm1794.
More importantly, it is not significantly different from es9018.
Its headphone output connector. Isolated ground wire output is adopted. So it won't be disturbed by USB. No capacitive isolation.
looks like it's probably ES9023. although perhaps not at that price, unless the parts are salvaged or something; it just looks like 9023 package. no idea why theyve sanded the numbers off on such a basic design ...
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If you look closely at the USB connector you'll see two tracks running direct from its two centre pins to the 16pin IC. Which to me indicates this chip takes a USB input directly. No ESS DAC that I'm aware of has a USB interface (ES9023 is I2S).
Let's not guess what chip it is. Because it's useless.
It works well. That's enough.
Even I don't know what chip it is.
And it has a very powerful headphone output amplifier circuit.
There is no capacitive isolation.
It's better than the akm4495 I've heard of.
Friend, I'm selling akm4490 akm4495
They are all the versions I sell.
And many friends bought my cm6631a+ akm4490.4495
There is my logo on it.
Get the result in my experiment.
The effect of DAC has nothing to do with DAC chip.
Make the best and cheapest DAC chip. For example, tda1543 still sounds better than es9038 with better parameters.
In fact, I personally recommend 16 bit 44K is enough. Chips with higher specifications differ in price.
It won't do any good.
I have almost all DAC chip products in the world.
And there are more than 20 of each kind.
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you are right. I always recommend cheap products.
I can put it another way.
Expensive, better things
Which statement do you think is believable. These things have no technical content.
Expensive products are easy to make. Cheap, good performance products. It's hard to make.
This is true.
Such as operational amplifier.
I recommend jrc4580, ne5532, tl072.
I don't recommend op amps over $0.50.
DAC I never recommend finished products that exceed $13.
The same is true of amplifiers. LM4766T or mx50se designed by me. About six dollars. very nice.
Don't waste money.
In addition. Expensive DAC. I designed it and sold it.
I just recommend cheaper ones. I can design any expensive equipment.
What do you recommend. Expensive equipment?
In fact, I design many products.
Some are not cheap. But the effect is very poor.
For example, Naim nap140, JLH 1969, wm8741dac. ESS
I sold a lot. But these are bad.
I'm just telling people not to waste money on these.
In many cases, the performance is not proportional to the price.
You may not have noticed. DiyAudio pays more attention than it did a decade ago. Reduced by 99%.
I think it's because of too many advertisements. Or caused by untrue data.
DIY is disappearing. This has nothing to do with me. I'm just an amateur.
If you make money. Perhaps the income of a business selling ice cream in our city will exceed that of the most profitable business here.
So don't always object to what I say. Because I'm not on my side. I'm just standing on the point of fact. Anyway, these things. In fact, not many people pay attention.
If I want to make money. It only takes me an hour to get down to business.
The income exceeds the money DIY earns in one year. This is not important.
Even this minidac. Few people can buy it.
I'm just talking casually when I'm bored. 😛
What I said. It is not necessarily related to what I want to do.
For example, I am selling a lot of junk products. JLH1969,PASSLAB。
None of these products have my logo
I'm selling them. And many people buy it. Although I know they are very rubbish. But it doesn't affect my making money. I don't recommend them either.
So what I express doesn't actually affect my earning. So I say what I think.
I don't need to deceive others.
This is the reality that 90% of DIY products are actually unqualified products.
I'm just talking about the reality.
You don't believe what I said. Because you have too high expectations for DIY.
I've seen the design here. Almost 99% of them have problems. FALSE. But 99% thought it was good.
Like many people I know, they all think that their ability to buy stocks is far better than Buffett.
But in fact, all these people have never made money on stocks.
DIY is the same. Almost everyone thinks their DIY is the best, but the reality is not so.
In fact, many people know this concept.
You will object. This is mainly the DIY forum,
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MINIUSBDAC TEST
Because it only has a USB interface.
So it is not convenient for me to test other data.
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Thank you for answering .
I still don't know what to think about it but at least you have the merit of the franchise.