Chord Mojo(1) DAC-amp ☆★►FAQ in 3rd post!◄★☆
Feb 29, 2016 at 4:33 PM Post #12,183 of 42,788
about the t1.2, never heard it, but i'll had my two cents about an ipothetical volume issue, considering the specs
 
 
600ohm is very high impedance.
I tried the HD800, and i must say they are driven quite nicely with plenty of volume even with low volume recordings (-16db of peak in Jriver dynamic range).
t1.2 doubles the hd800 impedance with the same sensivity, maybeif you want to listen at very high volume level with low volume recordings you would not reach a good sound pressure level.
 
but if you can't with the Mojo, i think you'll not be able with any other portable device of this kind
 
Feb 29, 2016 at 5:26 PM Post #12,185 of 42,788
An overwhelmingly amount of people are using this for their phones, but seeing as this one can take on the desktop DAC market, I wonder why I haven't seen nearly as much PC users in thread.  
 
That being said, if we simply want to use this as USB DAC/amp for PC, can we get by with using just one cable and sort of have it in a permanent charging state?  Of course, occasionally draining the battery because keeping it at full charge is bad for the battery.  I am confused by the two USB ports to be honest, but I'm probably overthinking it!  The only "portability" I'm concerned about is putting it in my pocket and taking it to work to also plug into a work PC, lol.  Again, I know it's marketed as a portable amp to be used with phones/DAPs but I'm just surprised at how very little PC users there are.  Makes me wonder if I'm making the wrong choice considering this for PC setup and if I should go for the ifi iDSD instead, lol.
 
Feb 29, 2016 at 5:38 PM Post #12,186 of 42,788
An overwhelmingly amount of people are using this for their phones, but seeing as this one can take on the desktop DAC market, I wonder why I haven't seen nearly as much PC users in thread.  

That being said, if we simply want to use this as USB DAC/amp for PC, can we get by with using just one cable and sort of have it in a permanent charging state?  Of course, occasionally draining the battery because keeping it at full charge is bad for the battery.  I am confused by the two USB ports to be honest, but I'm probably overthinking it!  The only "portability" I'm concerned about is putting it in my pocket and taking it to work to also plug into a work PC, lol.  Again, I know it's marketed as a portable amp to be used with phones/DAPs but I'm just surprised at how very little PC users there are.  Makes me wonder if I'm making the wrong choice considering this for PC setup and if I should go for the ifi iDSD instead, lol.


All you need to know is in the third post, but one input is charge only and the other is signal only so you would need to use two cables if you want to charge the mojo while listening to it.
 
Feb 29, 2016 at 6:10 PM Post #12,188 of 42,788
All you need to know is in the third post, but one input is charge only and the other is signal only so you would need to use two cables if you want to charge the mojo while listening to it.


Knowing that you can charge the Mojo while listening to it only tells half the story.  I guess what I'm *truly* getting at is, can one USB cable alone give power to the device?   I wouldn't care for keeping it charged.   I think that's a relevant question to answer for the FAQ.
 
Feb 29, 2016 at 6:16 PM Post #12,189 of 42,788
 
All you need to know is in the third post, but one input is charge only and the other is signal only so you would need to use two cables if you want to charge the mojo while listening to it.


Knowing that you can charge the Mojo while listening to it only tells half the story.  I guess what I'm *truly* getting at is, can one USB cable alone give power to the device?   I wouldn't care for keeping it charged.   I think that's a relevant question to answer for the FAQ.

 
Do you mean simultaneously?
 
Obviously, you are aware that the charging socket does not transfer data.
 
Are you proposing to send power to Mojo via Mojos data socket, whilst it is playing music?
 
 
 
 
  Hi guys, I'm interested in mojo and I was wondering the same thing.
Did you discovered if mojo micro-usb Input work with "data only" micro-usb cable? I'd like to keep the connection as clean as possible and I thought that DIY a data only cable for input would be the best choice. I'll be using the mojo with android smartphone/tablet.
thanks!

 


Actually, for that reason I always unplug when I use the mojo, just uses battery power. Really not anymore annoying than turning it on.

Although mojo senses the 5 volt power at the data In micro USB socket. The five volts goes no further into this input it's just being sensed that it's there. Therefore it can not affect the data on that input in any way as the data goes on into the Mojos circuitry alone and unaccompanied by the five volts who is left standing on the door step as it were!

 
Feb 29, 2016 at 6:21 PM Post #12,190 of 42,788
   
Do you mean simultaneously?
 
Obviously, you are aware that the charging socket does not transfer data.
 
Are you proposing to send power to Mojo via Mojos data socket, whilst it is playing music?
 
 

 
I'm not looking to charge the device, merely have it powered on, but I am sensing that it is either gonna need to be charging or not charging, no in between.
 
I'm looking to only use one USB cable for that.  (I have limited USB slots and I already have a USB hub for expansion and only have one remaining USB port left).
 
SO, I think what I'll need to do is run an optical cable to my mobo into the Mojo (heh) to meet my target of only using one USB cable.
 
Again, I don't think this is entirely too clear from the third post (which I did read!) but I think it'd make a great addition to the FAQ!
 
Feb 29, 2016 at 6:23 PM Post #12,191 of 42,788
Knowing that you can charge the Mojo while listening to it only tells half the story.  I guess what I'm *truly* getting at is, can one USB cable alone give power to the device?   I wouldn't care for keeping it charged.   I think that's a relevant question to answer for the FAQ.


Don't really understand what you are asking as my post quite clearly says one socket is power only and the other is signal only ?

Edit:: after reading your post above how long are you using it for during each listening session ?
 
Feb 29, 2016 at 6:36 PM Post #12,192 of 42,788
I'm not looking to charge the device, merely have it powered on, but I am sensing that it is either gonna need to be charging or not charging, no in between.

I'm looking to only use one USB cable for that.  (I have limited USB slots and I already have a USB hub for expansion and only have one remaining USB port left).

SO, I think what I'll need to do is run an optical cable to my mobo into the Mojo (heh) to meet my target of only using one USB cable.

Again, I don't think this is entirely too clear from the third post (which I did read!) but I think it'd make a great addition to the FAQ!


This will work and you get the benefit of isolation from any computer RF noise by using the optical connection.
 
Feb 29, 2016 at 7:35 PM Post #12,193 of 42,788
 
   
Do you mean simultaneously?
 
Obviously, you are aware that the charging socket does not transfer data.
 
Are you proposing to send power to Mojo via Mojos data socket, whilst it is playing music?
 
 

 
I'm not looking to charge the device, merely have it powered on, but I am sensing that it is either gonna need to be charging or not charging, no in between.
 
I'm looking to only use one USB cable for that.  (I have limited USB slots and I already have a USB hub for expansion and only have one remaining USB port left).
 
SO, I think what I'll need to do is run an optical cable to my mobo into the Mojo (heh) to meet my target of only using one USB cable.
 
Again, I don't think this is entirely too clear from the third post (which I did read!) but I think it'd make a great addition to the FAQ!

 
 
LOL - oh, now you mention you want to use an optical cable.
 
Well, yeah... erm... why would that need to go in the FAQ?  No offence, but it seems rather obvious that if you leave a USB port feeding power into Mojos charge port, it will take current as and when it needs it, and that it will function with whatever digital input you happen to prefer...
 
 
However, if you take a quick look in the 'Battery & Charging' section of Post #3, you can find this:
 
 
Just to clarify. Charging is automatic. If you are playing and charging at the same time, with a fully charged battery, the charger will supply enough current to balance the consumption used by Mojo, so no net current into the battery. If its fully charged and the unit is off, the charger will go off. The charger will re charge automatically when the battery voltage falls to 8.2v (off at 8.4v) so keeping the charger connected will ensure a full charge.
 
Rob 

 
Feb 29, 2016 at 7:51 PM Post #12,195 of 42,788
Next question "why is my mojo switching off while it's connected to the USB socket on my PC/Mac"
biggrin.gif

Are you charging at the same time?  If so what charge percentage is your battery at when you connect it?
 

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