Chord Mojo(1) DAC-amp ☆★►FAQ in 3rd post!◄★☆
Jul 17, 2016 at 3:16 PM Post #20,131 of 42,765
   

 Post #3:
 
Quote: (bold added by me)
Originally Posted by Rob Watts  John answered 1 and 2 fine, but I thought I would clarify exactly what happens when you charge and listen at the same time.
 
I use a dedicated charging chip for the Li battery, and this has a number of safety features, and works with a number of settings to ensure safety.
 
Now one of the safety circuits is a safety timer, and this is when the charger is in full charge mode. This timer is set to about 8 hours, and normally full charge mode takes 4 hours, when the unit is off. But when the unit is on and playing, there is a risk that the safety timer will be set, as it can take 12 hours to fully charge (from flashing red) and when playing music (for those 12 hours) at the same time. If the safety timer is set, then the battery LED will slowly flash white, and no further charging will take place. To reset the timer, just disconnect the charge USB, wait 10 seconds, and reconnect, and it will recommence charging. So if you are charging and playing, then when you have finished listening, turn Mojo off, and it will be OK. When Mojo is blue, and you connect the charger, then it is trickle charge mode, and the safety charger is not operating. So if Mojo is green, the safety timer won't trip out, as it will play and leave full charge mode within 8 hours, so you will be OK. It should be OK at yellow too. I guess the easiest way of dealing with it is to turn Mojo off after listening, then you will be fine, unless you listen for longer than 8 hours starting from fully flat.
 
Note that you can get the flashing battery LED if the USB charger voltage is low, from a charger that can't supply the current, or a USB cable that has high resistance. But you will see this pretty early on.
 
I hope this clarifies.
 
Rob
 
Cheers.
beerchug.gif

 
I also have an OPPO HA-2, which uses a VOOC rapid charger, and this also charges my Mojo without any problems.
 
Jul 17, 2016 at 4:24 PM Post #20,132 of 42,765
  Maybe...^^ I don't have enough knowledge on this subject, so can't comment on technicality. My charger is just an authentic 5V 2A samsung charger that I charge my phone with.

 
Please would you mind posting a picture of the charger you are using, for help purposes?
I am not doubting about what you are experimenting but I just tried now a Samsung charger provoking weird behavior with Mojo ( led switching permanenbly between Blue & White)
By zooming in the attached picture, you will notice that it is rated only 0.7A. With my charger case such behavior is expected.
wink_face.gif

 
Thks.

 
Jul 17, 2016 at 5:47 PM Post #20,133 of 42,765
  
 
Guys, see this post of mine I made a few weeks back. @Traveller, I don't get the dropouts, but I do get those loud pops/clicks when I seek within a track.
@rkt31, I am trying to avoid using ASIO because it seems to sound dull. So I am sticking with WASAPI, even though I get those loud pops. Do you know why ASIO is not sounding as good as WASAPI? Do I need to change any setting?
 

I received my Mojo yesterday. I installed the driver for Windows 10, and it only installed ASIO without allowing choice of WASAPI. How do I install WASPI? I use JRiver MC. Mojo with DT880-600 ohm sounds very musical and addicting  with amazing treble, mid and bass for  classical music. By the way, when I played DSD file JRiver automatically converted the file to 176Hz in stead of DSD format. Can any one please tell me how to setup and play DSD files with JRiver MC? Thanks in advance.


Check the DoP tick box under the asio settings.
Mojo plays DSD with DoP.
 
Jul 17, 2016 at 7:44 PM Post #20,135 of 42,765
Right you lot! I'm getting one tomorrow so it had better be worth it! LOL. And that dreaded most annoying CCK lead to.
 
Jul 17, 2016 at 7:49 PM Post #20,137 of 42,765
It's worth it if your headphones are good enough, hope your not using apple earpods lol.


Errr, no,,,,,,errr,,,,,,,,,,hmmmm. :wink:
I have some Shure IEM at the moment, albeit not the 846's. I am hoping to get some Noble K10's later this year. I actually don't own any decent headphones! All I have is Beyerdyamics DT100 that I used to use for online gaming when I was in a Quake clan! Yes, I am talking original Quake here! 3DFX graphics cards and all!
 
Jul 17, 2016 at 7:54 PM Post #20,138 of 42,765
Can the Mojo functions a just a DAC?
 
I've been holding down the volume buttons whilst powering on but the volume still functions on the Mojo
 
I would like to use line out to another amp to tweak the sound a bit towards the warmer end of spectrum without sacrificing the resolution.
 
Thanks
 
Jul 17, 2016 at 8:03 PM Post #20,139 of 42,765
  Thanks for all the replies. I think I'm going to go with the Mojo to replace my Schiit. Can anyone recommend a good/well-built 3.5mm to 1/4 adapter? I was thinking https://www.amazon.com/Sennheiser-Adapter-Authentic-Genuine-Universal/dp/B00L2SLLIO just because its Sennheiser.  
 
Also is there any reason I should not consider second hand and purchase a new mojo instead?


I have owned the Gumby and also Yggdrasil.   Currently I am using the Mojo and am very happy with it.  Here is the adapter I use from HD800 to Mojo.  Also a Sennheiser adapter
 

 
Jul 17, 2016 at 8:08 PM Post #20,140 of 42,765
So I'm going to start using my main rig with a android tablet/usb-hub/mojo/amp combo. I tested it out with my Nexus 6 and it played great except the Mojo lit up blue like it was receiving 192khz audio, regardless if I was playing 44khz or 96 tracks. Is this normal with android devices that it only displays the 192 color? I just don't want there to be any downsampling, etc...
 
Jul 17, 2016 at 8:16 PM Post #20,142 of 42,765
Errr, no,,,,,,errr,,,,,,,,,,hmmmm. :wink:
I have some Shure IEM at the moment, albeit not the 846's. I am hoping to get some Noble K10's later this year. I actually don't own any decent headphones! All I have is Beyerdyamics DT100 that I used to use for online gaming when I was in a Quake clan! Yes, I am talking original Quake here! 3DFX graphics cards and all!
then a K10 + mojo combo would probably blow your mind.
 
Jul 17, 2016 at 8:21 PM Post #20,143 of 42,765
then a K10 + mojo combo would probably blow your mind.


I hope so, I'm waiting on my Noble K10 as well. Hear amazing things about this combo. I have extremely high expectations considering everything I'm reading. I expect to be blown away. I love my mojo, so that's covered. Now, let's see what 24, consecutive 5 star reviews sounds like...
 
Jul 17, 2016 at 9:08 PM Post #20,144 of 42,765
Can the Mojo functions a just a DAC?

I've been holding down the volume buttons whilst powering on but the volume still functions on the Mojo

I would like to use line out to another amp to tweak the sound a bit towards the warmer end of spectrum without sacrificing the resolution.

Thanks


Basically it already does output straight from the DAC with only an I/V converter necessary for output. No other opamps in the output stage like traditional designs, and it's about as transparent as you can get from the DAC. Think of the Mojo as having variable line out instead of seperate headphone amp. Because of the DAC performance it's different from other DAC/amp combos. You can read Rob Watts explanation in the third post of the thread. The line level setting is just a volume shortcut to 3V.
 
Jul 17, 2016 at 9:20 PM Post #20,145 of 42,765
I hope so, I'm waiting on my Noble K10 as well. Hear amazing things about this combo. I have extremely high expectations considering everything I'm reading. I expect to be blown away. I love my mojo, so that's covered. Now, let's see what 24, consecutive 5 star reviews sounds like...


That's my combo, K10u with tidal streaming. Lovely, get some comply foam tips if you haven't already, makes a great seal, enhances the bass. I use this combo everywwhere now.
 

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