Chord Mojo(1) DAC-amp ☆★►FAQ in 3rd post!◄★☆
Jul 25, 2020 at 11:21 AM Post #40,396 of 42,765
On my Mojo only the -button changes its colour when volume is adjusted. The +button does not. Is this normal?

I think I can answer that this is not normal. If you unplug headphones and try turning the volume all the way off and then back up to max, are you saying the plus button shows no color or only shows one color (which one)? Also, how about if you turn it on in “dac mode” by holding down both volume buttons when you turn it on, which colors are shown?
 
Jul 26, 2020 at 10:23 AM Post #40,397 of 42,765
It only seems to be the case when I am 1) listening with headphones plugged in or 2) neither the headphones nor my iPhone is connected. It is as if the light under the - button is on but not under the + button. I have attached a few photos to illustrate. In line out mode there is no problem and both volume bulbs are lit.
 

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Jul 26, 2020 at 10:33 AM Post #40,398 of 42,765
It only seems to be the case when I am 1) listening with headphones plugged in or 2) neither the headphones nor my iPhone is connected. It is as if the light under the - button is on but not under the + button. I have attached a few photos to illustrate. In line out mode there is no problem and both volume bulbs are lit.

That is strange. But you have full range of volume and SQ is ok? Headphones plugged into either jack cause this? It it’s under warranty, I’d get it replaced. If not and no SQ issues, I wouldn’t worry about it.
 
Jul 26, 2020 at 12:39 PM Post #40,400 of 42,765
greetings

I have a question, I have an integrated amp connected to my speakers, and it has no remote

I mainly use tidal, and in tidal i have to avoid using exclusive mode and force volume for the chord driver. So that i can control the volume using the tidal app, but i notice a degrade in sound quality and a difference compared to exclusive mode. Is there any suggestions to control the volume digitally that is recommended beside what i am already doing, with tidal

I have the poly as well, and I use it with mconfig and there is volume control in the app. But still not like using full exclusive mode
 
Jul 30, 2020 at 12:54 PM Post #40,401 of 42,765
Jul 30, 2020 at 1:25 PM Post #40,402 of 42,765
can i ask is it better to set mojo to 2 or 3 volts when used as dac to my avid integra amp

http://www.avidhifi.com/electronics_integra.htm

According to the measurements from this website:
https://www.audiosciencereview.com/...-measurements-of-chord-mojo-dac-and-amp.5120/

"Since there is no separate line out, I resort to setting the output to 2 volts. There is a mode to put the unit in "line-out" mode but it produces too high a voltage of 3 volts which degrades the performance. I don't know where the notion of 3 volt comes from other than wanting to make sure the unit sounds louder than others"
 
Jul 30, 2020 at 4:01 PM Post #40,403 of 42,765
can i ask is it better to set mojo to 2 or 3 volts when used as dac to my avid integra amp

http://www.avidhifi.com/electronics_integra.htm

It depends on the input voltage of you amplifier.

  • However 3V is done by a boot up sequence in the manual.
  • Or you can set to 2V by four clisks down from 3V.
  • Or anywhere in between. (E.g. the Marantz PM6006 has line input voltage of 2.5V.)
 
Jul 30, 2020 at 4:06 PM Post #40,404 of 42,765
greetings

I have a question, I have an integrated amp connected to my speakers, and it has no remote

I mainly use tidal, and in tidal i have to avoid using exclusive mode and force volume for the chord driver. So that i can control the volume using the tidal app, but i notice a degrade in sound quality and a difference compared to exclusive mode. Is there any suggestions to control the volume digitally that is recommended beside what i am already doing, with tidal

I have the poly as well, and I use it with mconfig and there is volume control in the app. But still not like using full exclusive mode

I am using Tidal hifi right now with the Chord drivers. I use exclusive mode and force volume. I am not sure what's wrong with your setup. This works fine for me on two different Windows 10 boxes.
 
Jul 30, 2020 at 4:22 PM Post #40,405 of 42,765
It depends on the input voltage of you amplifier.

  • However 3V is done by a boot up sequence in the manual.
  • Or you can set to 2V by four clisks down from 3V.
  • Or anywhere in between. (E.g. the Marantz PM6006 has line input voltage of 2.5V.)
i thought mojo only has 2 or 3 v, how can u get for example 2.5 volts
 
Jul 30, 2020 at 4:27 PM Post #40,406 of 42,765
i thought mojo only has 2 or 3 v, how can u get for example 2.5 volts
Each click is 1 dB.

Default is 3V.
4 clicks down is 1.9V, https://www.head-fi.org/threads/chord-mojo-dac-amp-☆★►faq-in-3rd-post-◄★☆.784602/post-13256916

From that post:
"0 clicks down = 3 Vrms
1 click down = 2.67 Vrms output voltage (which Rob just mentioned. I hadn't seen this in the 3rd post?)
2 clicks down = 2.38 Vrms out voltage
3 clicks down = 2.1 Vrms (mentioned a couple times in this thread)
4 clicks down = 1.9 Vrms mentioned plenty of times in this thread of course "
 
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Jul 31, 2020 at 10:13 PM Post #40,408 of 42,765
Here's a slightly off-the-wall question -
.
Are the Volume balls simply the caps for a pair of push-button normally-open momentary switches?
.
If so, in a desktop application - I think it would be neat to replace the switches with a rotary encoder and a PIC processor, to simulate up & down clicks when a Volume knob is turned.
 
Jul 31, 2020 at 10:55 PM Post #40,410 of 42,765
Yes, but that would defeat the fancy Fisher Price look would it not?

Your question is not off the wall at all by the way.

I really like the idea of the Chord technology, but not the esthetic of the products. :ksc75smile:
 

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