Chord Mojo(1) DAC-amp ☆★►FAQ in 3rd post!◄★☆

[hfi429366999]

   
BUT PLEASE REMEMBER; that when you set it to 1.9V after 4 clicks down from the line out mode, that this volume IS remembered when switched off UNLIKE line out mode.
So the next time you turn on your MOJO, the volume WILL be at 1.9V, so don't plug in any headphones and press play.
You have been warned.
 
*Edit: Sorry, quoted wrong person.

 
 
Hello, perhaps this topic has been discussed extensively, but just to be sure, if changing Vrms of the line out with the volume balls, that volume level is remembered, UNLIKE default line out mode without changing the Vrms.  In other words, default line out mode of 3V is not remembered.  
 
But soon as you change it to something else, that lineout volume (eg .1.9V) IS remembered across power OFF/ON, i.e. when you turn on the unit next time WITH lineout (turn on with both volume balls pressed down) or WITHOUT lineout, 1.9V output it is.
 
And if powered on as non-lineout, that 1.9V for instance is remembered and that is what will drive the headphone.
 
Is this all true?
 
 
 
Reason i ask above for clarification (which i believe to be correct) is that, in lineout mode, after pressing down the volume down 4 times to get to ~1.9V, which lights both volume balls "blue" (indigo), i power down the unit.  Power it back up in lineout mode (both volume balls pressed down, and hold the power ball for ~2 secs), and both volume balls light up "light blue", which i believe is the default, 3V for powering up unit in lineout mode.
 
Not indigo.  Shouldn't they be?
 
Is my procedure for saving the lineout level to 1.9V across power off/up, flawed?

 

[musickid]

hi Hooter,
 
when i was writing the question i shared your thoughts exactly. however what im finding with this audio set up experience that when you think all is done someone mentions the most trivial of points then everything collapses again. a quick check does no harm i feel. im trying to decide whether macbook air ssd on battery vs imac mains powerd with intona is best option. once i know then i will leave all this research far behind me. to complicate matters now ipad mini cck has appeared and i also own a nice ipad retina mini 2. the journey continues as they say. whats the point of spending so much on gear like my new hugo to just handle it any old way. cheers mk

 

[Hooster]

  hi Hooter,
 
when i was writing the question i shared your thoughts exactly. however what im finding with this audio set up experience that when you think all is done someone mentions the most trivial of points then everything collapses again. a quick check does no harm i feel. im trying to decide whether macbook air ssd on battery vs imac mains powerd with intona is best option. once i know then i will leave all this research far behind me. to complicate matters now ipad mini cck has appeared and i also own a nice ipad retina mini 2. the journey continues as they say. whats the point of spending so much on gear like my new hugo to just handle it any old way. cheers mk

 
I think with respect to computer audio that the most important thing is to get the basics right. The computer output HAS to be bit perfect to your dac. If not, then pretty much all is lost if you ask me. Once you are sure you have a correct output, then you can start tweaking. Realize that a lot of effort has been put into designing the Hugo to cope with dirty power, etc.
 
You are at a point where you can have fun experimenting. Find out what works for you. a forum like this is not going to be able to tell you that. You need to try for yourself. In my experience I am sensitive to things such as cables, even the way they are terminated. (I can for example not abide speaker cables that are terminated with spades/bananas, etc. I find bare wire far superior). I have found by trial and error what works for me. It is all part of the fun. Don't take everything you read on a forum like this too literally... 
 
Try to get the basics right and don't spend much money on band aids. Better to save your money to upgrade core equipment later, than spend it on a lot of little magic boxes that may or may not improve the sound. 

 

[musickid]

Thanks Hooster,
 
with an intona it is bit perfect Rob told me.  so no additional software ?
 
is tidal hifi lossless bit perfect? tidal claim desktop app is. good enough for me.
 
finally are all hugo's now with the right connections for coax/toslink. read there was a problem here. from when was the problem solved.
 
can't help thinking that my macbook air early 2014 512gb ssd battery powered only used for music would solve all these problems as Rob explains this provides full isolation. of course i don't get the big imac screen plus charging laptop becomes regular issue. another OTT question. would mirroring the macbook air on my imac screen cancel the isolation of the macbook air.lol!!

 

[Hooster]

  Thanks Hooster,
 
with an intona it is bit perfect Rob told me.  so no additional software ?
 
is tidal hifi lossless bit perfect? tidal claim desktop app is. good enough for me.
 
finally are all hugo's now with the right connections for coax/toslink. read there was a problem here. from when was the problem solved.
 
can't help thinking that my macbook air early 2014 512gb ssd battery powered only used for music would solve all these problems as Rob explains this provides full isolation. of course i don't get the big imac screen plus charging laptop becomes regular issue. another OTT question. would mirroring the macbook air on my imac screen cancel the isolation of the macbook air.lol!!

 
I don't know anything about this intona.
 
Tidal is lossless if you set it up correctly.
 
Does air conduct electricity?

 

[Sound Eq]

strange i use a phone charger to keep the mojo always on when it connected to my computer which is connected to my home system , and after few hours I find the mojo turned off.
 
I thought I can have the mojo always running without it turning off.

 

[Pictograms]

Hello, perhaps this topic has been discussed extensively, but just to be sure, if changing Vrms of the line out with the volume balls, that volume level is remembered, UNLIKE default line out mode without changing the Vrms.  In other words, default line out mode of 3V is not remembered.  

But soon as you change it to something else, that lineout volume (eg .1.9V) IS remembered across power OFF/ON, i.e. when you turn on the unit next time WITH lineout (turn on with both volume balls pressed down) or WITHOUT lineout, 1.9V output it is.

And if powered on as non-lineout, that 1.9V for instance is remembered and that is what will drive the headphone.

Is this all true?



Reason i ask above for clarification (which i believe to be correct) is that, in lineout mode, after pressing down the volume down 4 times to get to ~1.9V, which lights both volume balls "blue" (indigo), i power down the unit.  Power it back up in lineout mode (both volume balls pressed down, and hold the power ball for ~2 secs), and both volume balls light up "light blue", which i believe is the default, 3V for powering up unit in lineout mode.

Not indigo.  Shouldn't they be?

Is my procedure for saving the lineout level to 1.9V across power off/up, flawed?

As long as I am understanding the question... You can't change the line out setting, everytime you hit the two balls on startup it always reverts to 3V. If you want it to start up in 1.9 all you need to do is switch the Mojo on

 

[miketlse]

   
 
Hello, perhaps this topic has been discussed extensively, but just to be sure, if changing Vrms of the line out with the volume balls, that volume level is remembered, UNLIKE default line out mode without changing the Vrms.  In other words, default line out mode of 3V is not remembered.  
 
But soon as you change it to something else, that lineout volume (eg .1.9V) IS remembered across power OFF/ON, i.e. when you turn on the unit next time WITH lineout (turn on with both volume balls pressed down) or WITHOUT lineout, 1.9V output it is.
 
And if powered on as non-lineout, that 1.9V for instance is remembered and that is what will drive the headphone.
 
Is this all true?
 
 
 
Reason i ask above for clarification (which i believe to be correct) is that, in lineout mode, after pressing down the volume down 4 times to get to ~1.9V, which lights both volume balls "blue" (indigo), i power down the unit.  Power it back up in lineout mode (both volume balls pressed down, and hold the power ball for ~2 secs), and both volume balls light up "light blue", which i believe is the default, 3V for powering up unit in lineout mode.
 
Not indigo.  Shouldn't they be?
 
Is my procedure for saving the lineout level to 1.9V across power off/up, flawed?

Yes is the short answer.
 
'Line out' is just a short cut to the 3V output voltage (it is the same components and signal path as the normal headphone out, but with the voltage selected to 3V).
So you switch your Mojo on and then press the two balls to get 3V correctly.
You are then using the -ve volume to get to 1.9V correctly.
You are then switching off, and the Mojo will remember 1.9V correctly.
 
If you now just switch the Mojo back on, your Mojo will output 1.9V. This will be the Mojo in headphone out mode, but the voltage will be the same as you were previously using for Line out.
What you are doing wrong, is switching on the Mojo, and then holding down the volume balls, because you reset the line out voltage to 3V again. 

 

[musickid]

can i check a point hooster mentioned. Rob has advised me that using a battery powered laptop unplugged solves isolation issue. 
 
does using a plugged in hugo/mojo charging after laptop on battery compromise this? ive looked for post 3 as max told me answer is there cannot find it. i think as hugo is battery powered even if plugged in so no issue. how is this possible though that sound quality is not affected when charger is plugged into mains.

 

[rosolo]

Ah I see, I'm not sure an older android phone would be that much of a good idea. For example the galaxy s4 mini I had lying around had problems with UAPP and OTG cables, also the SD card slot in it had max 64gb support but could not recognise my sandisk 200gb extreme at all. The only other phone I know that definiely does work is a Motorola E Gen phone but that's still around £90

I just heard about the poly. That seems the best solution and worth paying for if it ain't too pricey. I haven't read anything in this thread about it yet...but then it's a big thread and I'm a slow reader. Web site says it due in April.

 

[jmills8]

I just heard about the poly. That seems the best solution and worth paying for if it ain't too pricey. I haven't read anything in this thread about it yet...but then it's a big thread and I'm a slow reader. Web site says it due in April.

USE it then evaluate if its worth it. Ofcourse you believe it is hence you ordered it.

 

[rosolo]

USE it then evaluate if its worth it. Ofcourse you believe it is hence you ordered it.

Well no I've not ordered it ...I only just learned of it really and what I heard of sounded like it would be good and would replace the phone.   HOWEVER...I just learned a little more...it's need for hotspot...and then it's price!!!  At more than the mojo I'm now "well put off" Deftone's suggestion of motorola G4 now looks like a bargain! I'm looking at ipod touch as well to be honest now. Maybe that is more powerful than the G4 for other stuff too.

 

[alota]

i read the user guide and the post but i don´t understand one thing: i select fixed output(3V), listen music and after i turn off. when turn on the output is variable?
thank you

 

[jmills8]

Well no I've not ordered it ...I only just learned of it really and what I heard of sounded like it would be good and would replace the phone.   HOWEVER...I just learned a little more...it's need for hotspot...and then it's price!!!  At more than the mojo I'm now "well put off" Deftone's suggestion of motorola G4 now looks like a bargain! I'm looking at ipod touch as well to be honest now. Maybe that is more powerful than the G4 for other stuff too.

A phone and Mojo works great. I use it 3 Hrs a day on the go.

 

[Music Alchemist]

  (I can for example not abide speaker cables that are terminated with spades/bananas, etc. I find bare wire far superior).

 
I used bare wire to drive one of my old STAX systems with a converter and speaker amp. A non-audiophile female roommate at the time thought it was hilarious.
 

  Does air conduct electricity?

 
Air is an insulator/dielectric and conducts electricity under certain conditions.
 

Any insulator can conduct, provided the electric potential (voltage) across the insulator is greater than the breakdown voltage for that material.

Air does conduct electricity but at extremely high voltage! Dielectric strength of air is 30kV/cm. If air is subjected to a gradient of such an order, it ionizes first and then starts conducting!

 
...But who needs lightning when you have Mikoto Misaka?

 

Spoiler: GIF

 

  strange i use a phone charger to keep the mojo always on when it connected to my computer which is connected to my home system , and after few hours I find the mojo turned off.
 
I thought I can have the mojo always running without it turning off.

 
My first guess is that the cause is your unconventional charger. Try charging it via a USB cable (such as the stock one) connected to a computer and see if this changes. I'm assuming your connections are at least correct: one USB cable connected to the charger input and another USB cable connected to the data input.
 

  can i check a point hooster mentioned. Rob has advised me that using a battery powered laptop unplugged solves isolation issue. 
 
does using a plugged in hugo/mojo charging after laptop on battery compromise this? ive looked for post 3 as max told me answer is there cannot find it. i think as hugo is battery powered even if plugged in so no issue. how is this possible though that sound quality is not affected when charger is plugged into mains.

 
Does anyone have impressions of a battery-powered laptop sounding better than one plugged in?
 
My laptop used to last for 8 hours or more unplugged, but now it can only handle an hour or two. I did compare the sound plugged and unplugged a few times, but I don't think it sounded different. However, this was not with the Mojo, so I may compare again.
 

  i read the user guide and the post but i don´t understand one thing: i select fixed output(3V), listen music and after i turn off. when turn on the output is variable?
thank you

 
The output is always variable, never fixed. This was answered on the previous page. It remembers the custom volume setting you set. If you want it to be at 3 volts even when turning it on normally, just set it to that color manually. (But remember not to plug headphones in before reducing the volume to your desired level!) You can also alter the volume after activating line level volume. (Which would involve turning it on while holding both volume buttons, then changing the volume by pressing either of the volume buttons.)