Audio-GD DI-20

[Thinman]

Eric, no, this distortion is more a kind of constant static like a veil of noise. On 24/96 it is very minor but noticeable. Yes, i will try to share info from AGD when i have it.

 

[newabc]

About industry or lab programmable linear power supply

Hi Di-20 community, has anyone tried an industry or lab used programmable linear power supply to feed your external clock, source, or headphone amp? That's something like this or this.

 

[Jandu]

About industry or lab programmable linear power supply

Hi Di-20 community, has anyone tried an industry or lab used programmable linear power supply to feed your external clock, source, or headphone amp? That's something like this or this.

i have used one like this with very good results for my transport:

http://daitronglobal.com/products/power/lfs150a.html

 

[sajunky]

As for the universal bench equipment, they are over engineered for this purpose, have a lot of features you never need. All you need is a fixed voltage linear PSU from a DIY shop. Cheaper and likely better.

SMPS from the other post looks nice and is probably much cheaper. However I would use it for testing only. If helps, I would make a plan to replace it with a quality linear PS. I have some SMPS's from Meanwell, had been used in various situations, good to have for testing.

 

[newabc]

As for the universal bench equipment, they are over engineered for this purpose, have a lot of features you never need. All you need is a fixed voltage linear PSU from a DIY shop. Cheaper and likely better.

SMPS from the other post looks nice and is probably much cheaper. However I would use it for testing only. If helps, I would make a plan to replace it with a quality linear PS. I have some SMPS's from Meanwell, had been used in various situations, good to have for testing.

The shipping fee takes a large part in the cost of a LPS over $120 from a DIY store on aliexpress, and it won't save much with multiple items. But an industry/lab LPS costs less when we buy from full filled by amazon or multiple pieces from mouser.

 

[PeterCraig]

Ordered a DI-20HE to replace my DI-20. I should have got the HE version in the first place but I was not sure if my M7 dac is revealing enough to make it worth it.

I could have asked Kingwa if the new R8 MK2 would be a better investment then the M7 + DI-20HE but didn't want to hear that it was and then have to retire my trusty M7. Not yet at least. I still love it dearly.

I'm very curious to do an a/b comparison with the two DI20s. Let's see what a regenerative power supply can do. My ears are very sensitive to treble (tinnitus) and I'm thinking the HE version will allow me to turn the volume up another few notches. Every time I upgrade my gear I can crank up the volume more without my ears complaining too much afterwards.

 

[DecentLevi]

Isn't the only difference between HE / standard DI-20 versions that the HE version has an isolated internal section for power supply? If so, doesn't a good isolated power cable connected to a decent power conditioner put them both on a level playing field? Just curious anyway.

Moreover, wanting to ask does the DI-20 accept USB cables without DC power? I saw a Pangea USB cable that has dual USB input connections, one for signal and one for power. Multiple reviews said the sound improvement was huge and noticeable; albeit not necessarily paired with the DI-20. Either I could forgo the power connection connecting only the "signal", or maybe even better connect the power to my high performing 5v DC LPS via a special adapter.

 

[sajunky]

Isn't the only difference between HE / standard DI-20 versions that the HE version has an isolated internal section for power supply? If so, doesn't a good isolated power cable connected to a decent power conditioner put them both on a level playing field? Just curious anyway.

Moreover, wanting to ask does the DI-20 accept USB cables without DC power? I saw a Pangea USB cable that has dual USB input connections, one for signal and one for power. Multiple reviews said the sound improvement was huge and noticeable; albeit not necessarily paired with the DI-20. Either I could forgo the power connection connecting only the "signal", or maybe even better connect the power to my high performing 5v DC LPS via a special adapter.

The only difference is a regenerative power supply, but I can be wrong.

Audio GD use internal power for the USB receiver. 5V power pin is not connected. Injecting a foreign power supply won't change anything from the DI-20 perspective, but it may redirect ground loops coming from the USB source on the 0V wire and/or a shield. It is worth to try.

 

[jazzbug]

just my experience with dual USB with DI-20HE, it still needs the handshake. With the USB power cable disconnected from computer, my jRiver wouldn't play...

 

[sajunky]

just my experience with dual USB with DI-20HE, it still needs the handshake. With the USB power cable disconnected from computer, my jRiver wouldn't play...

Thank you for feedback and it rings a bell. Actually +5V line is not used for handshaking, but it can be a case that DI-20 is different to the older designs and a module takes a power from USB bus indeed. It makes sense, as in this case Combo384 module is isolated from a DAC.

Can you post a photo of the part of the module, please? [Component side, the area 2cm around USB socket]

 

[Oepsie]

Regarding USB power, my DI-20 is working fine with my SOtM SMS-200 using the booster vbus2 (https://www.sbooster.com/sbooster-tweaks/vbus2-isolator/sbooster-vbus-isolator) which does exactly that: disconnects the vbus power from the USB port.

So I guess it might depend on the computer/streamer also?

The difference, however, is quite noticable in the direction of more natural sound and timbre, better feeling of instruments and tonal impact (not tonal balance but more PRAT related) - difficult to explain, it kind of softens the initial impact of instruments, leaving more room for details.

 

[patatras]

Hi all
Could you tell me please how find the firmare versions of the DI-20 (Amanero and FPGA)?
Thank's

Pierre

 

[DACLadder]

@patatras You can find them in the locations below…
http://www.audio-gd.com/Firmwaredownload.htm
http://www.audio-gd.com/Pro/dac/Amanero/AmaneroEN.htm

 

[patatras]

@patatras You can find them in the locations below…
http://www.audio-gd.com/Firmwaredownload.htm
http://www.audio-gd.com/Pro/dac/Amanero/AmaneroEN.htm

Thank's
How can I see if I have to update my unit ?

Pierre

 

[Jandu]

Thank's
How can I see if I have to update my unit ?

Pierre

You may not. Some versions are there for different sound signature, depends on your music taste and the rest of equipments, you may find good synergy or not. If you find your existing set up is good, you may not need to update. However, you may want to experiment to see if there is something that suit you better