Chord Mojo DAC-amp ☆★►FAQ in 3rd post!◄★☆
Mar 18, 2018 at 8:44 PM Post #35,671 of 41,428

Adu

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Can you share your experience of the mojo connected to a audiophile (usually expensive) hi-fi system?
How does it perform connected to a really great amp and great speakers?
How does it compare to other more traditional (not portable) DACs?

Actually it's sound great as DAC only, in my modest hi-fi system.
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Mar 18, 2018 at 9:22 PM Post #35,672 of 41,428

x RELIC x

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Thank you for the warm welcome. I've just had my second day with the mojo and it continues to blow me away. I continue to do my reading but as it was an impulse buy which arrived so shortly after my order and I've struggled to part myself from listening to it ive still got alot more to read.
The sound is perfect, so for once in my brief audiophile career im not dealing with EQs or formats or anything to do with the sound itself. That truely speaks to how fantastic the mojo is. I can't forsee myself wanting to update that part of my signal chain at all, I've simply lost interest in looking for a better dac. Hell I've already set aside another £389 to buy it's replacement for when it breaks outside warranty (although depending on how my research goes I might up into this fund early and get a poly).

I'm not getting much noise when using on my PC via USB, hence why I'm not too certain on the jitterbug as an investment. May go for it anyway as it's only £39.

I am however getting a fair bit of interference on my phone, so am looking at solutions for that.

I found these on Amazon and may give them a try: www.amazon.co.uk/Dreamtop-Clip-Ferrite-Suppressor-Diameter/dp/B01MG8GQ1F

Likewise this cable were recommended which I am going to try as a replacement for my current cable solution.
www.amazon.co.uk/gp/aw/d/B01GGKYAIU/ref=ox_sc_act_image_2?smid=A3P5ROKL5A1OLE&psc=1
It doesn't say otg but the reviews seem to suggest it might work (connecting to a note 8)

Does anyone have any advice on reading strain on the usb sockets or minimising battery problems? The issues reported have me treading lightly as I do love how this thing sounds.

I had a similar feeling when I first heard the Mojo, but unlike you it had me insanely curious to try the TOTL DAVE when it was released. Needless to say I’ve gone down the rabbit hole since then.

Regarding EMI from the phone chances are that cables or ferrites may not eliminate it, unfortunately. Cellular signals are very strong and can be picked up even through the headphone cable - as I’ve discovered when testing. The only surefire way to get around it is to use ‘airplane’ mode on your smartphone or use a dedicated DAP (which obviously has no cellular antennae) to connect to the Mojo. I’ve read about other devices like the WA8, OPPO HA-2, CDM, FiiO Q5 have all had posts regarding smartphone cellular interference as well so it’s not just Mojo but a downside to using a device which has strong cellular signals very near audio gear.

Regardless, if you find something that reduces or eliminates the EMI I’m sure the forum would like to read about it.
 
Mar 18, 2018 at 9:56 PM Post #35,673 of 41,428

ChasingDopamine

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I had a similar feeling when I first heard the Mojo, but unlike you it had me insanely curious to try the TOTL DAVE when it was released. Needless to say I’ve gone down the rabbit hole since then.

Regarding EMI from the phone chances are that cables or ferrites may not eliminate it, unfortunately. Cellular signals are very strong and can be picked up even through the headphone cable - as I’ve discovered when testing. The only surefire way to get around it is to use ‘airplane’ mode on your smartphone or use a dedicated DAP (which obviously has no cellular antennae) to connect to the Mojo. I’ve read about other devices like the WA8, OPPO HA-2, CDM, FiiO Q5 have all had posts regarding smartphone cellular interference as well so it’s not just Mojo but a downside to using a device which has strong cellular signals very near audio gear.

Regardless, if you find something that reduces or eliminates the EMI I’m sure the forum would like to read about it.

The Dave is pretty far down the rabbit hole! I actually had a chance to audition one at a store in London, but gave it a miss as I'd rather not have to consider sellingseither of my kidneys at this present moment so probably best leave that one to the imagination for me! I would consider the Hugo 2 however. I tried it with the focal clears and thought they were incredible, however at the time I had attributed this mostly to the focals, but now that I've listened critically at my leisure to the Mojo perhaps didn't give enough of the credit to the Hugo.

I have also read about these issues with other models. Overall I still find the mojo more pleasurable than the dragonfly red it replaced even with a bit of interference, so I can't say it's a deal-breaker for now. I don't actually mind going on airplane mode. Shutting off from the world actually helps me disengage and relax into the music. The only downside of course is the fact that I can't browse tidal via UAPP.

I did however note that interference seemed less with WiFi on but mobile data and location turned off - this also allowed WhatsApp and browsing so a bit half and half there incase people need to contact me during listening sessions.

I have thought about a DAP, although I would need to do more research. Ideally one with tidal (/offline) and a warmish dac for use on the go when the mojo is tucked away.
 
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Mar 18, 2018 at 10:30 PM Post #35,674 of 41,428

x RELIC x

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The Dave is pretty far down the rabbit hole! I actually had a chance to audition one at a store in London, but gave it a miss as I'd rather not have to consider sellingseither of my kidneys at this present moment so probably best leave that one to the imagination for me! I would consider the Hugo 2 however. I tried it with the focal clears and thought they were incredible, however at the time I had attributed this mostly to the focals, but now that I've listened critically at my leisure to the Mojo perhaps didn't give enough of the credit to the Hugo.

I have also read about these issues with other models. Overall I still find the mojo more pleasurable than the dragonfly red it replaced even with a bit of interference, so I can't say it's a deal-breaker for now. I don't actually mind going on airplane mode. Shutting off from the world actually helps me disengage and relax into the music. The only downside of course is the fact that I can't browse tidal via UAPP.

I did however note that interference seemed less with WiFi on but mobile data and location turned off - this also allowed WhatsApp and browsing so a bit half and half there incase people need to contact me during listening sessions.

I have thought about a DAP, although I would need to do more research. Ideally one with tidal (/offline) and a warmish dac for use on the go when the mojo is tucked away.

I imagine with WiFi on it helps with location services if within wifi signal distance and so therefore reduces the gain required on the cellular antennae.

For Tidal (offline) there’s the FiiO X5iii which does fine with 16/44.1 content to an external DAC like the Mojo, and it has a warm signature on its own (warmer than Mojo). I wouldn’t recommend it for USB audio output but coaxial to the Mojo is fine with the appropriate custom cable (unless playing high resolution files over 5000kbps). But of course this is an extra expense.
 
Mar 19, 2018 at 3:12 AM Post #35,675 of 41,428

lwells

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So just finished my first listening session with the mojo after my long first charge.


I had a similar experience to you. I auditioned an iFi iDSD BL nano for a week before buying the mojo. I REALLY liked the nano. Had it not broken in the first week of use (seriously) I would have bought it instead of the mojo. I was expecting some buyer's remorse with the mojo as it costs 2x as much. I have none.

I think the best I can articulate the difference: The nano made me tap my foot again. The mojo makes my whole body move.
 
Mar 19, 2018 at 3:18 AM Post #35,676 of 41,428

lwells

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Considering getting some ferritebeads to help with interference. Does anyone recommend the AudioQuest jitterbug for the mojo? Some reviews seem to rate it while others seem not so impressed

I can recommend the jitterbug, but I don't think it will help with interference so much.
 
Mar 19, 2018 at 6:44 AM Post #35,677 of 41,428

ChasingDopamine

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I can recommend the jitterbug, but I don't think it will help with interference so much.

Did you find it helped with noise through the usb? Importantly though did you find it had any effect on the sound signiture of the mojo? I vaugleu remember reading something suggesting that it may. If it can't hurt I may get one just to have one lying around, but I'd be a bit early if it affected the sonic performance of the mojo
 
Mar 19, 2018 at 7:22 AM Post #35,678 of 41,428

lwells

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Did you find it helped with noise through the usb? Importantly though did you find it had any effect on the sound signiture of the mojo? I vaugleu remember reading something suggesting that it may. If it can't hurt I may get one just to have one lying around, but I'd be a bit early if it affected the sonic performance of the mojo

To my ear, the jitterbug doesn't have any effect on sound signature. I get the sense that the highs are a touch smoother with the jitterbug. The change will probably be dependent on the device. With my devices, I'm not sure I could identify it in a blind test. It's subtle, and makes cymbals a bit more pleasant.

It made no change to interference for me.
 
Mar 19, 2018 at 10:16 AM Post #35,679 of 41,428

ChasingDopamine

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I just ordered some ferrite clip one, pack of 20 in different sizes to experiment a bit. Am I right to say that they would be most effective being placed near the mojo? Would there be any additional benefit to placing them near the phone, near the mojo on the headphone cable end, or on the charging cable?
 
Mar 19, 2018 at 10:28 AM Post #35,680 of 41,428

almarti

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Have you checked the FAQ in post "3?
There is info about using UAPP to work with a NAS drive, and run Tidal in bitperfect mode.

I checked 3rd post but I was referring to Settings inside USB Audio settings (USB 1, USB 2, bit perfect, etc.)
I had to struggle with those parameters in OnePlus 3 and now they seem different in AP200 as I always get some noise, clicks, etc., with any song.
 
Mar 19, 2018 at 12:46 PM Post #35,681 of 41,428

GreenBow

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Welcome to the Mojo club.
As one of the posters who have followed this thread for over two years, your experience mirrors many other mojo owners. In the early days of this thread, there were many posts by mojo owners, describing how they read the posts/publicity about mojo, and went along to dealers curious to hear the mojo, but not expecting it to replace their existing dac solution. Most of those posts ended with them saying that they left the demo, either with a mojo, or with one on order. Normally people know very quickly that the mojo is a step up, and special.
@Mython tried to capture a lot of the best practice for using Mojo in the FAQ in post #3, granted the subsequent change in Head-Fi platform makes some of the info harder to access, but there are several long-term posters who will be happy to try and answer any questions that you may have.
Regarding Jitterbug, Rob Watts posted that although it doesn't reduce jitter, it can reduce electrical noise, so can be considered a cost effective improvement.
For myself, i found that adding a ferrite choke removed much of the electrical noise, but there are interesting posts on the other chord threads about using multiple ferrite chokes, each tuned to a different frequency band.
Please feel free to ask any other questions that you have, because hopefully we can provide an answer.

Thank you for the warm welcome. I've just had my second day with the mojo and it continues to blow me away. I continue to do my reading but as it was an impulse buy which arrived so shortly after my order and I've struggled to part myself from listening to it ive still got alot more to read.
The sound is perfect, so for once in my brief audiophile career im not dealing with EQs or formats or anything to do with the sound itself. That truely speaks to how fantastic the mojo is. I can't forsee myself wanting to update that part of my signal chain at all, I've simply lost interest in looking for a better dac. Hell I've already set aside another £389 to buy it's replacement for when it breaks outside warranty (although depending on how my research goes I might up into this fund early and get a poly).

I'm not getting much noise when using on my PC via USB, hence why I'm not too certain on the jitterbug as an investment. May go for it anyway as it's only £39.

I am however getting a fair bit of interference on my phone, so am looking at solutions for that.

I found these on Amazon and may give them a try: www.amazon.co.uk/Dreamtop-Clip-Ferrite-Suppressor-Diameter/dp/B01MG8GQ1F

Likewise this cable were recommended which I am going to try as a replacement for my current cable solution.
www.amazon.co.uk/gp/aw/d/B01GGKYAIU/ref=ox_sc_act_image_2?smid=A3P5ROKL5A1OLE&psc=1
It doesn't say otg but the reviews seem to suggest it might work (connecting to a note 8)

Does anyone have any advice on reading strain on the usb sockets or minimising battery problems? The issues reported have me treading lightly as I do love how this thing sounds.


I am not sure quite what Mike means here. I am not sure the Jitterbug can stop RFI affecting your cables, which it picks up between PC and Mojo. (That's what ferrites are for I think.) The Jitterbug stops noise on the power rails from a source like a PC.

However I was sold by the Jitterbug, the minute I applied it to my USB line from my PC.
 
Mar 19, 2018 at 2:21 PM Post #35,682 of 41,428

ChasingDopamine

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I am not sure quite what Mike means here. I am not sure the Jitterbug can stop RFI affecting your cables, which it picks up between PC and Mojo. (That's what ferrites are for I think.) The Jitterbug stops noise on the power rails from a source like a PC.

However I was sold by the Jitterbug, the minute I applied it to my USB line from my PC.

Do you know if the jitterbug would have any use on a phone? (e.g. phone -> usb-c (otg) to female usb->jitterbug> male usb to microusb -> mojo. i believe it was mentioned before than a phone has less issues with this kind of noise so in that case would i be better off with a straight phone
-> usb-c to micro usb ->mojo?
 
Mar 19, 2018 at 2:45 PM Post #35,683 of 41,428

lwells

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Do you know if the jitterbug would have any use on a phone? (e.g. phone -> usb-c (otg) to female usb->jitterbug> male usb to microusb -> mojo. i believe it was mentioned before than a phone has less issues with this kind of noise so in that case would i be better off with a straight phone
-> usb-c to micro usb ->mojo?

My mojo touches my work windows laptop and my iPhone 6. I just leave a jitterbug on my work laptop. There I can hear the difference. I can't so much on my iphone.
 
Mar 19, 2018 at 2:49 PM Post #35,684 of 41,428

miketlse

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I am not sure quite what Mike means here. I am not sure the Jitterbug can stop RFI affecting your cables, which it picks up between PC and Mojo. (That's what ferrites are for I think.) The Jitterbug stops noise on the power rails from a source like a PC.

However I was sold by the Jitterbug, the minute I applied it to my USB line from my PC.
Maybe I didn't explain it well, but you are right that the ferrite chokes remove RFI captured by the outer shield of the cable, and the jitterbug is removing electrical noise passing down the wires inside the cable.
 
Mar 19, 2018 at 3:10 PM Post #35,685 of 41,428

Dana Reed

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I had a similar feeling when I first heard the Mojo, but unlike you it had me insanely curious to try the TOTL DAVE when it was released. Needless to say I’ve gone down the rabbit hole since then.

Regarding EMI from the phone chances are that cables or ferrites may not eliminate it, unfortunately. Cellular signals are very strong and can be picked up even through the headphone cable - as I’ve discovered when testing. The only surefire way to get around it is to use ‘airplane’ mode on your smartphone or use a dedicated DAP (which obviously has no cellular antennae) to connect to the Mojo. I’ve read about other devices like the WA8, OPPO HA-2, CDM, FiiO Q5 have all had posts regarding smartphone cellular interference as well so it’s not just Mojo but a downside to using a device which has strong cellular signals very near audio gear.

Regardless, if you find something that reduces or eliminates the EMI I’m sure the forum would like to read about it.
That's been my experience here with an iPhone SE is that putting it in airplane mode was the only way to get rid of the audible RF on the Mojo. That turned out not to be practical for a phone, so first I tried a Sony DAP connected via USB, but now just to get the ability to use both my own lossless content and also streamed stuff from Spotify, I bought a 128 GB iPod touch and connected that using the USB adapter module and CCK cable. I only turn on Wifi when I want to pull down something else from Spotify, and use the Onkyo HF player to play any FLAC or ALAC files of higher than 48/24.
 

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