Chord Mojo(1) DAC-amp ☆★►FAQ in 3rd post!◄★☆
Nov 9, 2015 at 4:10 AM Post #4,518 of 42,765
I was playing around different settings in my audio player (specifically BitPerfect over iTunes) and found that there are tons of different upsampling options and dithering algorithms to use - I'd be interested to find out from Chord what general recommendations are there for the Mojo, e.g.. will upsampling generally improve the sound or does the Mojo mostly prefer native resolutions? 99% of my music is Redbook 44.1/16. Also does the Mojo mostly prefer untampered bit streams and does it add a bit of processing inside the unit - will the different dithering algorithms used by the computer audio players have an adverse effect? I know a typical answer to these questions might be "just try the different combinations and pick one that sounds good to you", but since the combinations are so many, it helps to have a bit of guidance to start things off. One thing is certain that the sound does improve a great deal when I use BitPerfect over just plain iTunes, and I'm sure a lot of people here agree that dedicated audio players if they do hog the playback device they will help with the quality. But when you are already using such players, it helps to know which direction you need to tweak further. Thanks in advance.
 
Nov 9, 2015 at 4:33 AM Post #4,519 of 42,765
*Retracted*
 
Nov 9, 2015 at 5:01 AM Post #4,521 of 42,765
  I was playing around different settings in my audio player (specifically BitPerfect over iTunes) and found that there are tons of different upsampling options and dithering algorithms to use - I'd be interested to find out from Chord what general recommendations are there for the Mojo, e.g.. will upsampling generally improve the sound or does the Mojo mostly prefer native resolutions? 99% of my music is Redbook 44.1/16. Also does the Mojo mostly prefer untampered bit streams and does it add a bit of processing inside the unit - will the different dithering algorithms used by the computer audio players have an adverse effect? I know a typical answer to these questions might be "just try the different combinations and pick one that sounds good to you", but since the combinations are so many, it helps to have a bit of guidance to start things off. One thing is certain that the sound does improve a great deal when I use BitPerfect over just plain iTunes, and I'm sure a lot of people here agree that dedicated audio players if they do hog the playback device they will help with the quality. But when you are already using such players, it helps to know which direction you need to tweak further. Thanks in advance.


Rob Watts discouraged the use of any up-sampling during playback, as he is using a much more sophisticated and powerful system than is available in computer software. The gist of it is, if you imagine that the most you can do is 8-16X up-sampling on your computer, the Hugo, and I presume the Mojo, oversample 2048X using software Rob Watts has developed over 30 years.
 
Nov 9, 2015 at 5:35 AM Post #4,522 of 42,765
 
Rob Watts discouraged the use of any up-sampling during playback, as he is using a much more sophisticated and powerful system than is available in computer software. The gist of it is, if you imagine that the most you can do is 8-16X up-sampling on your computer, the Hugo, and I presume the Mojo, oversample 2048X using software Rob Watts has developed over 30 years.

 
Agree, in my testing with either JRiver on laptop or UAPP on S6/Note 4 playing the audio at its recorded frequency to my SE846's sounds best. Just get the music in its recorded form out of the player and into the Mojo untouched.
 
In UK with my Mojo I got a promotion code for a free 256DSD album (Just Listen - 8 Ensembles in 1bit) and astonishing clarity/detail/soundstage/instrument & voice separation.
 
Nov 9, 2015 at 5:39 AM Post #4,523 of 42,765
On that note, bughead + jplay is a really good sounding player with upsampling but its very CPU intensive. To me, it sounds beter than Jriver....however, I have not tried that with Hugo yet...
 
Nov 9, 2015 at 6:20 AM Post #4,524 of 42,765
The Moon-audio youtube video of the Mojo claims there are going to be accessories for the Mojo. In the form of a block, many attachements are going to be catered for. What caught my attention was a claim that there will be an SD-card attachment. Does that mean that the Mojo will soon not need a DAP or phone, or transport player?
 
It's mentioned on this vidoe at just past 8 mins. https://www.youtube.com/watch?v=VVuXxzPYfRM
 
Nov 9, 2015 at 6:50 AM Post #4,527 of 42,765
Interesting for a few reasons. With regards to the T5p, they're fairly neutral, although on the brighter side of neutral, and a bit bass light to my ears. Their main deficit for me though is how lean they are - it's not a matter of they are neutral and the Mojo is neutral and so the pairing is not ideal. They definitely want a pairing that is warmer and has a bit more body than the Mojo I think (EQ'ing will help somewhat). I had a similar take tonight comparing the Mojo with the Geek Out V2 with the Ether C. I need to compare more formally, but I think the Ether C is a little on the leaner side too, if not as much as the T5p (and with a better bass response).


I don't know the T5p, but if you fancy trying a warmer pairing with some body, maybe give the ALO CDM a go. The tubes warm things up and you have a high gain switch for more thump.

I love my Hugo and would get the Mojo if I didn't have the Hugo, but I think the CDM has the characteristics you mention.
 
Nov 9, 2015 at 7:16 AM Post #4,528 of 42,765
Can anybody recommend a well-priced USB OTG cable and an adapter for the DX90 coaxial cable that I  could source from a UK source?


FYI all the connection answers are in the third post of this thread. :wink_face:

If you want to pay for a custom cable you can purchase from here in the UK. I suggest you contact them to specify the dx90 connection to the Mojo:
http://www.custom-cable.co.uk/custom-cable-cc35-3.5mm-coaxial-cable.html


If you want to save money you can use a regular un-shielded stereo interconnect (it works) which will work with the dx90 as well:

With the X5 coaxial out
http://www.head-fi.org/t/784602/chord-mojo-the-official-thread-read-the-first-post-for-updated-info/4245#post_12057507

Reported to work with the dx90
http://www.head-fi.org/t/784602/chord-mojo-the-official-thread-read-the-first-post-for-updated-info/4245#post_12057507

More X5 with a regular IC cable
http://www.head-fi.org/t/784602/chord-mojo-the-official-thread-read-the-first-post-for-updated-info/4275#post_12057847


For USB OTG you can look at the third post of this thread:

http://www.head-fi.org/t/784602/chord-mojo-the-official-thread-read-the-first-post-for-updated-info#post_11992416
 
Nov 9, 2015 at 8:23 AM Post #4,530 of 42,765
FYI all the connection answers are in the third post of this thread.
wink_face.gif


If you want to pay for a custom cable you can purchase from here in the UK. I suggest you contact them to specify the dx90 connection to the Mojo:
http://www.custom-cable.co.uk/custom-cable-cc35-3.5mm-coaxial-cable.html


If you want to save money you can use a regular un-shielded stereo interconnect (it works) which will work with the dx90 as well:

With the X5 coaxial out
http://www.head-fi.org/t/784602/chord-mojo-the-official-thread-read-the-first-post-for-updated-info/4245#post_12057507

Reported to work with the dx90
http://www.head-fi.org/t/784602/chord-mojo-the-official-thread-read-the-first-post-for-updated-info/4245#post_12057507

More X5 with a regular IC cable
http://www.head-fi.org/t/784602/chord-mojo-the-official-thread-read-the-first-post-for-updated-info/4275#post_12057847


For USB OTG you can look at the third post of this thread:

http://www.head-fi.org/t/784602/chord-mojo-the-official-thread-read-the-first-post-for-updated-info#post_11992416


Thanks for the reply! I've been in the thread since the start therefore I didnt check the first post again.
 

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