Does anyone know what's in this Ugreen dac?

[D4v3]

Came across this dongle dac on amazon but I can't find any information about it. They never mention what the dac chip is, does anyone know?

https://www.amazon.ca/UGREEN-Adapter-Headphone-Converter-Compatible/dp/B0CG5FTHT9

 

[Zek]

what the dac chip is

It looks like it's KT0210.

 

[PjV]

The product number on the Amazon site is 25836.
It shows up as CM720 in my Mac's USB information and has that PID (see screencap, shown in hex).
It doesn't show more information than Manufacturer: Realtek.

 

[JSmith]

It looks like it's KT0210.

Yep, seems to be;

KT0210-USB Audio series-昆腾微电子股份有限公司

昆腾微电子是一家集成电路设计高新技术企业，公司于2006年9月在北京成立。目前，注册资本8,600万元，总部位于北京市海淀区，在西安、深圳设有分支机构。

www.ktmicro.com

... which may not be great really, but probably fine;

Integrated with stereo audio DAC, SNR 103dB,
THD-85dB;
Integrated with mono audio ADC, SNR 95dB,
THD-88dB;

Signature Acoustics CX-PRODAC Audiophile HiFi Mobile Audio Adapter DAC

Understanding Digital Audio ConvertersMusic is stored in 0s and 1s in your smart phone or computers. To be able to convert to audio signal you need a convertor. A DAC is a Digital-to-Analogue Converter. It’s a device that converts digital audio information (comprised of a series of 0s and 1s) int

proaudiohome.com

Manufacturer	Built-in DAC Chipset	Sampling Rate	Dynamic Range	(Signal to Noise Ratio) SNR	(Total Harmonic Distortion + Noise) THD+N	Crosstalk
KT Micro	KT0210	24 Bit/96 Khz	N/A	105 dB	88 dB	54 dB

JSmith

 

[D4v3]

Thank you guys. I need to just order the JM20 or 30 already.

 

[PjV]

KT0210 supports up to 24/96. The Amazon page mentions 32/384 (and DSD).
Edit: added screencap with supported sample rates for the device, from macOS.

 

[D4v3]

KT0210 supports up to 24/96. The Amazon page mentions 32/384 (and DSD).
Edit: added screencap with supported sample rates for the device, from macOS.

View attachment 419794

What do you think of it?

 

[PjV]

I'm happy with the dongle, zero issues.
However, I listen 'on the road' at moderate levels using the Moondrop Chu2 iems. ymmv.

 

[D4v3]

I'm happy with the dongle, zero issues.
However, I listen 'on the road' at moderate levels using the Moondrop Chu2 iems. ymmv.

I do wonder what chip is really in there.

 

[Gradius]

I do wonder what chip is really in there.

It was already mentioned:

KT0210-USB Audio series-昆腾微电子股份有限公司

昆腾微电子是一家集成电路设计高新技术企业，公司于2006年9月在北京成立。目前，注册资本8,600万元，总部位于北京市海淀区，在西安、深圳设有分支机构。

www.ktmicro.com

 

[D4v3]

It was already mentioned:

KT0210-USB Audio series-昆腾微电子股份有限公司

昆腾微电子是一家集成电路设计高新技术企业，公司于2006年9月在北京成立。目前，注册资本8,600万元，总部位于北京市海淀区，在西安、深圳设有分支机构。

www.ktmicro.com

PJV mentioned he owns one and it can output 32/384. KT0210 only supports up to 24/96 so it can't be that.

 

[Cippo95]

I have the cheaper version, not the one in the link of the OP, which indeed goes up to 24bit/96KHz.
Connected to the PC it also says KT USB Audio, the dongle linked by OP has surely another DAC.

 

[low_art]

Thank you guys. I need to just order the JM20 or 30 already.

I haven't seen mention of it here on ASR, but I have the JM20 and the JM20 MAX, and I prefer the MAX. If your headphones/ IEMs are especially efficient, the JM20 is probably fine. I prefer the higher power output of the MAX.

 

[D4Countercy]

I haven't seen mention of it here on ASR, but I have the JM20 and the JM20 MAX, and I prefer the MAX. If your headphones/ IEMs are especially efficient, the JM20 is probably fine. I prefer the higher power output of the MAX.

Does jm20 max have high noise floor with high sensitivity IEm like Simgot ew200?. I read specifications & it has really strong power, what sound signature it gives you?
I am considering jm20 max & jm80e(which advertised have low noise floor)?

 

[low_art]

I have used the JM20 and the JM20 MAX with the same IEMs (7HZ Zero2) and to my ears neither dongle has a sound signature. As far as noise floor, both are silent in absence of signal. In a typical setting, I think the ambient noise that will leak in past even a good seal will be far higher than any noise generated by either unit at maximum output. That said, my IEMs are not particularly sensitive.