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

[RiseFall123]

What’s the difference in terms of potential audio quality:

iphone > tidal > usb > mojo > my gear

Vs

Android TV > tidal > optical > mojo > my gear

 

[DBaldock9]

What’s the difference in terms of potential audio quality:

iphone > tidal > usb > mojo > my gear

Vs

Android TV > tidal > optical > mojo > my gear

Does the Android TV have the issue of resampling audio to 48KHz?

 

[RiseFall123]

Does the Android TV have the issue of resampling audio to 48KHz?

Due to the color of the ball of the Mojo it does surely a resampling, just don't remember right now what one but for sure it's not red so you right.

So I assume that in any case the iPhone endpoint is always better.

Also, and for curiosity, I wonder if even Kodi with it's passthrough feature are resampled.

 

[DBaldock9]

Due to the color of the ball of the Mojo it does surely a resampling, just don't remember right now what one but for sure it's not red so you right.

So I assume that in any case the iPhone endpoint is always better.

Also, and for curiosity, I wonder if even Kodi with it's passthrough feature are resampled.

I know that the UAPP (USB Audio Player Pro) app has a Tidal client included, and is capable of outputting bit-perfect audio via the USB port, on a phone or tablet. But I don't know whether it will install and run on an Android TV device, or whether it can use the SPDIF optical output. There is a UAPP thread, which has posts and questions answered by one of the developers - https://www.head-fi.org/threads/usb...quitous-usb-audio-support-for-android.704065/

 

[daberti]

Asking to @DavidW and @lwells only: your CCK 2.0 is recognized by iOS 11.3, but you don't get a hold of Mojo.
Now, CCK 2.0 (in this case) is only Part 1 of the whole cable connection.
Part 2 being the USB-B to Micro-USB (both male ends) cable. Would you please get another such -but fully shielded this time- cable and test again?
TIA

!!! iOS 11.3 only and Mojo/Hugo at the ready, please !!!
Thanks

Please, everyone adding his/her combo results, please mention CCK's own -whichever version, 3.0 or 2.0- FW and HW version.
For mates experiencing issues only: may I ask you to provide all the possible info (GB, hw and model, NOT IMEI and S/N of course) ?​

MOJO works:

@zettelsm iPhone X,Apple CCK 3.0 (FW 1.05, HW 1.00), Roon
@daberti iPhone 6 Plus 128GB, CCK 3.0 (FW 1.05 HW 1.0)
@daberti iPhone 6 Plus 128GB, CCK 2.0 (firmware version 1.0.0, hardware version 1.0.0, model number A1440) (it needed a respring to be brought back to reasoning)
@Adu iPhone 6S (Model A1633) with Onkyo HF Player, CCK 2.0 (firmware version 1.0.0, hardware version 1.0.0, model number A1440)
@lwells iPhone 6 (CCK 3.0)
@turkayguner iPad mini 4, CCK 2.0 (firmware version 1.0.0, hardware version 1.0.0, model number A1440)
@ZappaMan iPhone 7, CCK 2.0 (firmware version 1.0.0, hardware version 1.0.0)
@Deftone iPhone 8+, CCK 3.0 (firmware version 1.0.5, hardware version 1.0.0)
@AndrewH13 iPhone 6s and iPad 2017, CCK 3.0 (firmware version 1.05, hardware version 1.0.0) (tested against Mojo AND Hugo1)
@Dana Reed iPhone SE, CCK 2.0 model A1440, FW 1.0.0 HW 1.0.0 (worked with 11.2.6, and still works after updating to 11.3). Our mate said "I do have the CCK 3.0 but that stays at home and I use it to connect to my Schiit Eitr. That also worked before and after 11.3"


MOJO not recognized:

@DavidW iPhone 6S+ 128GB, CCK 2.0 (firmware version 1.0.0, hardware version 1.0.0, model number A1440)
@lwells iPhone 6 (CCK 2.0), Our mate said "Mojo NOT recognized. Perhaps it just failed at a conveniently confusing time. Cable looks fine."


Apparently Apple has broken legacy support (i.e. towards CCK 2.0, which is NOT OTF upgradable BTW). For what I see it's kinda random like pattern, up to now possibly hitting some but not all of the iPhone 6 and 6S+ devices. NOT 6+ 128GB (mine) and NOT 6S (Model A1633) about which @Adu reported a successful coupling.
To complete the pattern -sorry for that- I humbly think that the ones of us who had a success with CCK 3.0 -but did NOT have CCK 2.0 at hand- would need get a hold of CCK 2.0 (from a friend etc.) and try this as well to help us all.

Up to now not a single failure has been detected with CCK 3.0.

 

[lwells]

I'm sorry but I cannot retest. I assumed this was a cable failure and tossed it

 

[daberti]

I'm sorry but I cannot retest. I assumed this was a cable failure and tossed it

It is to me definitely kinda cable failure more than backwards compat. broken by iOS 11.3: either of the two cables I mentioned above (CCK and USB to MicroUSB.

Let's wait for @DavidW to chime in

Thanks

 

[torifile]

This may be a stupid question but why is *the* thread about the Mojo in the portable *source* gear forum?

 

[Mython]

This may be a stupid question but why is *the* thread about the Mojo in the portable *source* gear forum?

You're about 2 years late, asking that question


https://www.head-fi.org/threads/chord-mojo-dac-amp-☆★►faq-in-3rd-post-◄★☆.784602/page-885#post-12421262



In addition to the points made in the above link, if you look in the 'Dedicated Source Components' section of the forum, you'll see that there are numerous DACs listed there.
Mojo is fundamentally the same thing, only in portable format (and one that doesn't require a seperate amplifier in order to drive headphones).

If you were meaning to imply that a DAC cannot be considered a source, since it requires a source of digital signal (from a smartphone, tablet, CD-transport, DAP, or whatever), then that is getting into semantics. A DAC may not be a complete source, but it is still a source, in partnership with a transport to act as a source of digital signal.
Consider Mojo a source of a superior analogue signal, when fed a digital source signal which could be reconstruced into an analogue signal convincingly or poorly, depending on the competence of (and practical constraints exerted upon) the DAC designer.

 

[miketlse]

You're about 2 years late, asking that question


https://www.head-fi.org/threads/chord-mojo-dac-amp-☆★►faq-in-3rd-post-◄★☆.784602/page-885#post-12421262

I am not convinced.
Originally the phone was the source, and Mojo provided the dac functionality. Nowadays poly represents the source, not the mojo.
I will give up there, because it is an argument that I can never win, and it is Friday afternoon.

 

[Mython]

Hahaha, 'Along Came Poly' to complicate the semantics even further?

Poly is the conveyor of a digital signal, as you well know. (I say conveyor, as distinct from source, as I am trying to acknowledge that there may be any number of different devices broadcasting digital data to Poly). However, it could still be argued (and I would) that Poly is, in some senses, a source, since it does feed a digital signal to Mojo.

In any case, you wouldn't have much success connecting Poly to the analogue input of an amplifier, or transducer!


Heck, I'd gladly keep things much simpler and just say that Poly is a digital source (of sorts) and Mojo is an analogue source (of sorts).

In a relay race, there might be 4 people per lane competing in the race. So, which one is the runner?


I'm sure there must be something better I could be doing with my Friday - has my life really come to debating semantics with strangers, on the internet?!

 

[turkayguner]

I don't think Mojo or any mobile DAC is a source by itself, like the Apogee One which I have for example. A source in general should have some sort of storage (or streaming) and playback functionalities by itself. Mojo only takes the digital signal and converts it to analog signal as we all aware off.

 

[Mython]

I don't think Mojo or any mobile DAC is a source by itself ....

I agree.


No one is saying Mojo is a source by itself, but it is a source component.


Until such time as the forum has a sub-section specifically dedicated to Portable DACs & DAC-Amps, the most appropriate location for this thread is exactly where it has always been.

Honestly, the number of junk threads created on a daily basis in each of the forum sub-sections is enough to test the sanity of anyone concerned with organisation on this website. Quibbling over the semantics of a legitimate longstanding thread pales into insignifcance, by comparison.

 

[Light - Man]

Mython, I reckon that I can solve this puzzling semantic conundrum once and for all (for ever!)

Take this example from Samantha from Bewitched ( and who did not want to..................???? !!!)

Here we can see her dishing out the bytes in packets of bits and somehow the Mojo makes sense of it all - and produces a sound that so many people seem to like.

Hope that is a tiny byte of help,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Happy Friday!

 

[miketlse]

I agree.


No one is saying Mojo is a source by itself, but it is a source component.


Until such time as the forum has a sub-section specifically dedicated to Portable DACs & DAC-Amps, the most appropriate location for this thread is exactly where it has always been.

Honestly, the number of junk threads created on a daily basis in each of the forum sub-sections is enough to test the sanity of anyone concerned with organisation on this website. Quibbling over the semantics of a legitimate longstanding thread pales into insignifcance, by comparison.

I think the curse of Friday the 13th has been in operation.