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

Aug 12, 2018 at 10:21 AM Post #37,111 of 42,916
It appears you like a dirtier, grittier sound from the distortion. Mojos output is too clean for some people but for me i love the purity.

I wasn’t gonna say it. While I agree with @Deftone on the added distortion, @CoCostanza is really happy with his sound now. I’ve been in similar situations, and often I eventually revert back to the more transparent or neutral setup. It’s a journey, or we’d all own the same setup (for a given investment level). With more listening and more types of music, you may find your preferences changing. Or not and you are happy and keep more m9neu in your wallet! :beerchug:
 
Aug 14, 2018 at 3:13 PM Post #37,114 of 42,916
I think there have been one, maybe two posts about Mojos with a loose screw.
Contact info@chordelectronics.com for advice about what to do.
Already did, I was about to replace my battery anyway, but now I'm charging it outside of the casing to see if it will hold charge (if there is something wrong on the main board that's draining power).
 
Aug 14, 2018 at 3:26 PM Post #37,115 of 42,916
Already did, I was about to replace my battery anyway, but now I'm charging it outside of the casing to see if it will hold charge (if there is something wrong on the main board that's draining power).
Now you have the case open, you can see that if you do need to replace the battery, then it is a simple matter of unplug it from the circuit board.
Chord can arrange for a replacement battery if needed.
First though, satisfy yourself whether your loose screw, has come loose from inside the Mojo, or whether it was a loose screw that was not removed during final assembly.
:slight_smile:
 
Aug 14, 2018 at 3:46 PM Post #37,116 of 42,916
Now you have the case open, you can see that if you do need to replace the battery, then it is a simple matter of unplug it from the circuit board.
Chord can arrange for a replacement battery if needed.
First though, satisfy yourself whether your loose screw, has come loose from inside the Mojo, or whether it was a loose screw that was not removed during final assembly.
:slight_smile:
The thing is it doesn't seem like the odd screws are supposed to be there - they might've shorted some circuit though making my battery die exceptionally fast. I'm charging it right now with low voltage and we shall see if it's gonna be better. I don't have multimeter in here to check it afterwards - it would come handy to see if I really have to change battery or not.

IMG_20180814_184750_HDR.jpg
 
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Aug 14, 2018 at 4:26 PM Post #37,117 of 42,916
The thing is it doesn't seem like the odd screws are supposed to be there - they might've shorted some circuit though making my battery die exceptionally fast. I'm charging it right now with low voltage and we shall see if it's gonna be better. I don't have multimeter in here to check it afterwards - it would come handy to see if I really have to change battery or not.

IMG_20180814_184750_HDR.jpg
Yes, take your time doing this testing, because we need to identify facts/evidence.
I will try and find the previous post(s) about mojo loose screws, but I think they are rare events. Let's face it, there are not many screws inside the Mojo, so possible sources are relatively few.
 
Aug 14, 2018 at 4:39 PM Post #37,119 of 42,916
I see now - main board should be screwed to chassis with those. Not sure why it looks like it wasn't screwed in at all (the holes look untouched).
In that case, first try using those screws to reattach the main board.
Maybe you were just unlucky, but possibly this is a rare quality control issue for chord.
I know from my normal job, that sometimes these issues do arise, but flagging them up is the first step to eradicating them.
:slight_smile:
 
Aug 14, 2018 at 5:33 PM Post #37,120 of 42,916
Hi guys, I'm about to order a Chord Mojo to power my headphones however I see mixed opinions on how it drives 600ohm headphones. I have a pair of beyerdynamics dt 990 edition 600ohm, do you guys think it can drive them properly? Some say they wont sound good other say they will sound amazing, its insane how mixed are opinions about how Chord Mojo will drive high impedance headphones. (btw I know impedance is not the only factor when an amp drives headphones)

If you can help me with this itd be really appreciated, thank you! :D :)
 
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Aug 14, 2018 at 6:57 PM Post #37,121 of 42,916
Hi guys, I'm about to order a Chord Mojo to power my headphones however I see mixed opinions on how it drives 600ohm headphones. I have a pair of beyerdynamics dt 990 edition 600ohm, do you guys think it can drive them properly? Some say they wont sound good other say they will sound amazing, its insane how mixed are opinions about how Chord Mojo will drive high impedance headphones. (btw I know impedance is not the only factor when an amp drives headphones)

If you can help me with this itd be really appreciated, thank you! :D :)

It depends on how loud you listen. With 96dB SPL/mW sensitivity (the more important spec) and 600 Ohms it will get to around 110dB peaks (very loud) with some room to spare. Whether you like the synergy or not will be a different story as well.
 
Aug 15, 2018 at 1:24 AM Post #37,122 of 42,916
Hi guys, I'm about to order a Chord Mojo to power my headphones however I see mixed opinions on how it drives 600ohm headphones. I have a pair of beyerdynamics dt 990 edition 600ohm, do you guys think it can drive them properly? Some say they wont sound good other say they will sound amazing, its insane how mixed are opinions about how Chord Mojo will drive high impedance headphones. (btw I know impedance is not the only factor when an amp drives headphones)

If you can help me with this itd be really appreciated, thank you! :D :)
I and others - not universally - have found mojo lacks a little something when playing hd800s - I think they’re 300ohms and described as easy to drive.
You get that something from hugo2.
I’ve tended towards using mojo with my iem since I thought this.
I can’t explain it. Must be more to it then volume and voltage.
 
Aug 15, 2018 at 2:35 AM Post #37,123 of 42,916
Must be more to it then volume and voltage.

Yup, there’s certainly more magic with the Hugo2, but then again it is a tier above the Mojo with some significant improvements besides a minor bump in output power.
 
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Aug 15, 2018 at 6:05 AM Post #37,125 of 42,916
Opened mine up recently, i didnt find anything loose.

Even if everything is possible I found that a lot of details are missing in @b0urne_ posts.
In principle you don't open an item purchased new & under warranty.
If the screws were lost/forgotten inside (unscrewed) at least one of them should have produced noise when shaking Mojo.
Assumption is that previous owner forgot to put them back.

I did open my almost 3 years old Mojo for curiosity last week: nothing loose and no swollen cells :ksc75smile:
Mojo.jpg
 

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