The iBasso Dongle DAC Thread – DC07 Pro | DC Elite | DC06 Pro | DC04 Pro | DC03 Pro | ...

[HifiFrog]

@zepmaj Sound like Windows is turning off the USB device to save power.

You could try to turn this off:
https://help.realsimgear.com/en/articles/4225962-managing-usb-power-settings-windows-only

 

[zepmaj]

@zepmaj Sound like Windows is turning off the USB device to save power.

You could try to turn this off:
https://help.realsimgear.com/en/articles/4225962-managing-usb-power-settings-windows-only

Yes, first one did the trick. Thank you so much.

 

[Vamp898]

By the way, i just got an DC07 Pro and FYI, keep the display off.

This is the measurement with the display on

This is the measurement with the display off

As they are not finished and just first tests/samples, ignore the measurements otherwise. But this is the first thing i noticed. If the display is on, its suddenly significantly worse. At first i thought its broken until i enabled the timer and checked again with the turned off display...

Also if anyone cares, the (objectively) best sound quality is with the "Fast" filter, everything else changes the sound as far as i could test.

Also the difference between Low Gain and High Gain is only 5db which is strange. My DAWN PRO has a difference of 10db between low and high gain (especially with sensitive IEM, thats a pretty big difference. My IEM is much louder on 001/100 Low Gain on the DC07 Pro than on the DAWN PRO)

What is also strange is, that the Dongle reports to the OS that it is capable of the following rates

44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000

the CS43131 only supports up to 384000, so not sure if this is an firmware bug or not.

 

[Paul - iBasso]

By the way, i just got an DC07 Pro and FYI, keep the display off.

This is the measurement with the display on

This is the measurement with the display off

As they are not finished and just first tests/samples, ignore the measurements otherwise. But this is the first thing i noticed. If the display is on, its suddenly significantly worse. At first i thought its broken until i enabled the timer and checked again with the turned off display...

Also if anyone cares, the (objectively) best sound quality is with the "Fast" filter, everything else changes the sound as far as i could test.

Also the difference between Low Gain and High Gain is only 5db which is strange. My DAWN PRO has a difference of 10db between low and high gain (especially with sensitive IEM, thats a pretty big difference. My IEM is much louder on 001/100 Low Gain on the DC07 Pro than on the DAWN PRO)

What is also strange is, that the Dongle reports to the OS that it is capable of the following rates

44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000

the CS43131 only supports up to 384000, so not sure if this is an firmware bug or not.

With our FPGA and the DAC matrix, the DC07PRO can support PCM up to 32/768, and native DSD512.

We have tested the DC07PRO with the screen on and off and there is no difference. May I ask what test equipment is it that you used?

I have a short video of the testing, which shows there is no difference. I will upload this.

I can't upload the video but you can contact me at paul@ibasso.com and I can send it to you. It shows there is no difference with the screen on or off during playback of the signal.

 

[Vamp898]

With our FPGA and the DAC matrix, the DC07PRO can support PCM up to 32/768, and native DSD512.

We have tested the DC07PRO with the screen on and off and there is no difference. May I ask what test equipment is it that you used?

I have a short video of the testing, which shows there is no difference. I will upload this.

I can't upload the video but you can contact me at paul@ibasso.com and I can send it to you. It shows there is no difference with the screen on or off during playback of the signal.

Sorry for the late reply, i was still doing testing and playing around and so tested several things before looking back here.

I noticed that the HP Filter also only affected the right channel (not both), so i thought, something is wrong with this device first, but then noticed, the Firmware is outdated.

I updated the firmware and i can no longer measure a difference between display on/off, also the HP filter works perfectly fine now, as expected. This is the measurement with Display On

This is with Display Off

Pretty much identical

I measure using an PreSonus Studio 68c

 

[pappsa8]

I am using the DC Elite with Hiby RS2 as transport. RS2 battery drains about 10% per hour

Another friend is using the Hiby R3ii with the DC Elite, but I have no idea about her batter draining rate

Hi!
Have you tried the Elite against the hiby rs2 line out mode?They say the line out even greater on the rs2 than the simple 4.4!

 

[Xinlisupreme]

Hi @Paul - iBasso
When IBasso will release desktop devices?

Any news?

 

[vandung2510]

Sorry for the late reply, i was still doing testing and playing around and so tested several things before looking back here.

I noticed that the HP Filter also only affected the right channel (not both), so i thought, something is wrong with this device first, but then noticed, the Firmware is outdated.

I updated the firmware and i can no longer measure a difference between display on/off, also the HP filter works perfectly fine now, as expected. This is the measurement with Display On


This is with Display Off


Pretty much identical

I measure using an PreSonus Studio 68c

How do you update the firmware? And how do you know if it's the latest ones?

 

[Vamp898]

How do you update the firmware? And how do you know if it's the latest ones?

You need a Windows PC. As I don't have one, I used an VM.

I tells you the current firmware in the menu (the last Point). You can get the latest firmware from the iBasso homepage