[myshark]

All signal are produced without condition, and i believe all outputs can he connected at the same time with active devices. I am case, i have 3 outputs (bnc, aes, i2s) hooked up to the same dac, the r7he.

Yes, i am hooking i2s and aes output to the same dac thus could a/b comparison by selecting which input from the dac.
The spdif to another dac. Selecting which dac to output on the preamp. Could do a/b comparison using preamp.
/shark

 

[Wynnytsky]

I've been A/B'ing DACs via parallel outputs for over 5 years. Don't know why it took this long but now I see interfaces are offering duplicate identical outputs (ex: 2 lvds hdmi) that allow us to make a true apples2apples comparison.

I didn't know an interface existed that DIDNT permit this -- now I know it's the offramp 5.

 

[Articnoise]

I didn't know an interface existed that DIDNT permit this -- now I know it's the offramp 5.

I have not tried to connect two different interfaces with my OR5, because it’s funkier than that and people have fried their OR5 just by disconnect it while being powered on.

From the manual:

“Make sure the I2S connectors are mated at both ends of the cable before powering-on either the Off-Ramp 5 or the DAC. Likewise, power both down before disconnecting the I2S cable. For operation without I2S cable, make sure that the supplied terminator is plugged into the I2S output jack.”

http://www.empiricalaudio.com/pdfs/Off-Ramp_5_User_Manual_rev_2.0.pdf

 

[FredA]

The same applies to audio-gd and the hdmi input/output, rj45 as well.

 

[FredA]

Kingwa has recently announced his new power cable and has given some info about it on the audio-gd forum (in chinese) :

Many commercial cables and signal cables pay attention to material and capacity to produce sound. The power cord and speaker cord pay attention to the material and wire thickness, and the capacity is relatively small. However, the thickness of the wire directly affects the internal resistance, so the effect of plugging in the same wire for different wattage equipment varies greatly. Our power cords pay attention to the structure, I discovered wires of different structures 20 years ago, even though the same wire is used there are very big differences. Once the wire structure is determined, whether it is connected to a 10W DI20 or a hundreds of kilowatt power amplifier, it displays a consistent tone. Our power cords have been recalibrated, using copper pin plugs, and each cord is manufactured in strict accordance with regulations. The sound is unique and is unlike other base cables.

 

[ProLoL]

So fun to go back to series, parallel is more detailed yet has been fatiguing in the long run.

 

[ProLoL]

Kingwa has recently announced his new power cable and has given some info about it on the audio-gd forum (in chinese) :

Many commercial cables and signal cables pay attention to material and capacity to produce sound. The power cord and speaker cord pay attention to the material and wire thickness, and the capacity is relatively small. However, the thickness of the wire directly affects the internal resistance, so the effect of plugging in the same wire for different wattage equipment varies greatly. Our power cords pay attention to the structure, I discovered wires of different structures 20 years ago, even though the same wire is used there are very big differences. Once the wire structure is determined, whether it is connected to a 10W DI20 or a hundreds of kilowatt power amplifier, it displays a consistent tone. Our power cords have been recalibrated, using copper pin plugs, and each cord is manufactured in strict accordance with regulations. The sound is unique and is unlike other base cables.

That's great to hear! I actually ordered one few days ago and will compare against a pangea ac14 mk2 with cardas grade one copper.

 

[FredA]

So fun to go back to series, parallel is more detailed yet has been fatiguing in the long run.

I went back to 3.93 in parallel mode. I was with 4.07b in serial. Ni complaint so far.

 

[ProLoL]

I went back to 3.93 in parallel mode. I was with 4.07b in serial. Ni complaint so far.

Is there a quick tutorial on how to change the firmware? I received a usb blaster with my unit.

 

[FredA]

Doing the update is no problem. Installing the altera sw and the proper driver is where the difficulty is.

You can get the altera sw here

https://onedrive.live.com/?id=636DC4E8060D66A1!172&cid=636DC4E8060D66A1

And as for installing he usb blaster driver, first you may have to uninstall a driver automatically installed by windows. To do this, you have to locate the corresponding item in the device manager (unplugging and replugging helps in that the item will disappears than reappear from/in the device list) and use the popup menu to select the corresponding choice.

Then use this link to manually install the driver from the altera installation directory (your have to have the altera sw installed first of course) :

https://www.driverscape.com/articles/how-to-install-a-driver-manually

Then use Kingwa's procedure for the fw update. Avoid touching the red button while the DI20 is turned on, it will reset the amanero fw....

Then follow this procedure below. The update connector is at the back, no need to take off the cover. The di20 needs to be turned off while plugging/unplugging the cable, and the blaster needs to be disconnected from the update pc. The indentation in the connector goes upward.

http://www.audio-gd.com/R2R/R8/R8updateEN.htm

 

[ProLoL]

Doing the update is no problem. Installing the altera sw and the proper driver is where the difficulty is.

You can get the altera sw here

https://onedrive.live.com/?id=636DC4E8060D66A1!172&cid=636DC4E8060D66A1

And as for installing he usb blaster driver, first you may have to uninstall a driver automatically installed by windows. To do this, you have to locate the corresponding item in the device manager (unplugging and replugging helps in that the item will disappears than reappear from/in the device list) and use the popup menu to select the corresponding choice.

Then use this link to manually install the driver from the altera installation directory (your have to have the altera sw installed first of course) :

https://www.driverscape.com/articles/how-to-install-a-driver-manually

Then use Kingwa's procedure for the fw update. Avoid touching the red button while the DI20 is turned on, it will reset the amanero fw....

Then follow this procedure below. The update connector is at the back, no need to take off the cover. The di20 needs to be turned off while plugging/unplugging the cable. The indentation in the connector goes upward.

http://www.audio-gd.com/R2R/R8/R8updateEN.htm

Thank you very much!

 

[FredA]

I just made corrections, so check my updated post.

 

[DACLadder]

Kingwa has dropped a newer version of 4.07 Beta 3 firmware for the DI-20/HE. Incremental bug fixes and clock improvements.

“Feature: Fixed the spdif output channels issue. Improve on the clocks figure.
Welcome feedback the bugs if you find.”

http://www.audio-gd.com/En audio-gd.htm

 

[ProLoL]

Great, would love to hear impressions.

 

[FredA]

So far, not sure but 4.07c is definitly better than 4.07b using the external clock but i will have to go back to 3.93 to determine which one is the best. Right now, i would tend to say 3.93. It seems smoother with better imaging. They are close but last night with 3.93 was perfect, i don't feel as much pleasure with 4.07c so far but it's still early to draw a conclusion. They are close.