[Arpiben]

   
 
I've found that I set my Mojo significantly higher when using it with JH custom Angie's. So I've made some crude (but direct) measurements.
 
Source: AudioTest on a Mac Mini sending pink noise at 0.0 dBFS 
 
Measuring: AudioControl CM-20 calibrated mic > iAudioInterface2 > iPad Pro. The mic was as close to the earphone as I could get it without actually touching.
 
Ambient noise was around 35 dB (A Weighted). 
 
At 40 clicks up from 0, I measured less than 80 dB (A Weighted).
 
 

 
I thoroughly cleaned the nozzles on my Angie's before the test.
 
I realize that this is by no means a professional test, but at least I'm doing a direct measurement with calibrated equipment. Estimates by @x RELIC x and @Arpiben were based on theoretical calculations. But my results are very, very different, so I'm wondering what I did wrong...
 
(Hey Guys! If you can see ways I can conduct a more accurate test, PLEASE let me know!!)

In complement of the hints you already received regarding measurement methodology and source volume (max), I would suggest you to use White Noise or Sine 1 kHz 0 dBFS instead of Pink Noise.
With 1 kHz sine curves you don`t need to care about weighted curves dB A, dB B or dB C since they are equivalent at that frequency.
Pink Noise has not a steady intensity vs frequency that is the reason why for this kind of measurement,imho, I am not in favour of it.
On the other hand, White Noise has a constant intensity vs frequency.
If you are interested, you may find some more information at http://www.engineeringtoolbox.com/decibel-d_59.html.
Cheers
 

 

 

[x RELIC x]

I'm going to suggest that the Mojo may not be adequate. I tried the LCD-4s with the Mojo on the weekend and it was a failure, the bass falling apart quite dramatically. I didn't try the LCD-3s, but given the not to dissimilar specs for the latest version of them, it doesn't look hopeful. 

To be fair the latest version of the LCD-4 is 200 Ohm vs the current LCD-3 110 Ohm and they are -5 dB/1mW less efficient. Sure, not huge differences in sensitivity, but it could be the deciding factor. Like I said, I'm pretty sure a full size amp will do better with the LCD-3 though, especially for the bass.

 

[x RELIC x]

On a different note, today I received the Dyson Audio short 75 Ohm coaxial cable meant for the FiiO X5ii to Mojo (TRRS to TS). It seems like it's built well enough. I do notice differences between the X5ii as a source and the AK240 and AK100 mk2. I may expand on them later.

The main reason I went for one was the 'Play Through Folders' feature on the X5ii and the battery life. When using coaxial output the X5ii will last in excess of 20 hours, easy. Regarding 'Play Through Folders' functionality it was fun to have Rebecca Pidgeon playing, soaking up the audiophilia, and then Stone Temple Pilots blasts through! Lol!

From this:

[VIDEO]https://m.youtube.com/watch?v=8W2zAwNKTsE[/VIDEO]


To this:

[VIDEO]https://m.youtube.com/watch?v=OibNcmZcF3k[/VIDEO]


Lol!

 

[god-bluff]

Maybe unlikely but has anyone compared the Graham Slee Bitzie to the Mojo?

 

[tkteo]

On a different note, today I received the Dyson Audio short 75 Ohm coaxial cable meant for the FiiO X5ii to Mojo (TRRS to TS). It seems like it's built well enough. I do notice differences between the X5ii as a source and the AK240 and AK100 mk2. I may expand on them later.

thanks Relic. I was looking for a right-angle TRRS to TS coax and I found it at the Dyson's ebay store.

 

[salla45]

Anything that receives and transmits a wireless signal will have the potential to cause EMI/RF noise with any device. It's not just limited to the Mojo. I've been reading similar reports for a while with the HA-2, DP-X1, FiiO X7, etc.. I'm not trying to defend the Mojo here, but there needs to be certain expectations when using a portable device in conjunction with a wireless signal. There are so many factors that could be the cause, such as signal strength, frequency band, distance to wireless router/cel tower, internal antennae quality, cable RF rejection/sensitivity, etc..

My iPhone 5S has zero EMI/RF (that I can hear) when on LTE with the Mojo, but as soon as I switch to 3G (or worse 2G) I get a lot of interference. I understand that on it's own the iPhone doesn't cause issues with itself, but it's obviously built with the appropriate internal shielding. Using an external device, no matter the device, all bets are off. Some have found that using a Ferrite core could choke some of the EMI/RF but then again some have reported little success. There is no bullet proof solution for any device except to simply use the smartphone as a standalone unit. As was just recommended the safest bet is to test it in a store before purchasing if possible.

Ref your comment above, I think the problem for most people (not me, I see phones as great communication and fun devices but they have no real place in the world of audiophile products, for the reasons we are discussing and many others) is that Chord has really done a great marketing job, citing the Mojo almost as a "must have" phone accessory for music lovers.
 
I'm very sure it has boosted sale remarkably but also has generated a host of disgruntled users. Reminds me a little, in a lateral way, of the marketing campaign for the AKG 3003's which placed them as an overpriced bijou frippery, for the man who has everything. In "serious" audio circles they never seemed to shake that image, despite offering superlative perfomance.

 

[Peter Hyatt]

I think one poster said it best when he said that if the only thing he has to deal with is a little RF at times, it is worth it. 
 
I concur.  
 
I'm not the experienced audiophile many here are, but I have ears and I have tested a number of well known, good quality DACs that come praised here.  
 
None came close to Mojo.  

 

[willowbrook]

Oh man you guys are making me more excited for the mojo waiting to be delivered tomorrow.

 

[Peter Hyatt]

  Oh man you guys are making me more excited for the mojo waiting to be delivered tomorrow.

The unusual part of this for me was that I came late to the Mojo party.  I was filled with over the top expectations from the constant high praise reviews, where it seems there is no place to go but down,  yet,  I was blown away by the clarity of the music.  
 
Congratulations.  

 

[willowbrook]

 
The unusual part of this for me was that I came late to the Mojo party.  I was filled with over the top expectations from the constant high praise reviews, where it seems there is no place to go but down,  yet,  I was blown away by the clarity of the music.  
 
Congratulations.  

Good to hear! ^^ Can't wait to hear those mids that everyone is talking about. I was hesitating due to some impressions describing them as slightly warm and warm is not good if clarity/air/detail is lost. However, it certainly doesn't seem like mojo is the case. I've recently learned to appreciate natural sounding timbre and it seems like mojo will be the perfect match. Too much money to invest in a full desktop setup with r2r dac and a resolving amp.

 

[salla45]

  Good to hear! ^^ Can't wait to hear those mids that everyone is talking about. I was hesitating due to some impressions describing them as slightly warm and warm is not good if clarity/air/detail is lost. However, it certainly doesn't seem like mojo is the case. I've recently learned to appreciate natural sounding timbre and it seems like mojo will be the perfect match. Too much money to invest in a full desktop setup with r2r dac and a resolving amp.

yes timbre is one of the most stunning aspects of the Mojo. It's breathtaking at times. I find I am listening in a completely different way, appreciating the instruments themselves a whole lot more, the sound of sticks on taught drumskins, the swish of brush on cymbal, each bow of stringed instruments, the pluck of guitar, so easily can you hear it's a double bass and not a guitar, etc. Makes for a very interesting listening experience every time. Needless to say, the better the recording the more the timbre definition is marked. 

 

[jmills8]

yes timbre is one of the most stunning aspects of the Mojo. It's breathtaking at times. I find I am listening in a completely different way, appreciating the instruments themselves a whole lot more, the sound of sticks on taught drumskins, the swish of brush on cymbal, each bow of stringed instruments, the pluck of guitar, so easily can you hear it's a double bass and not a guitar, etc. Makes for a very interesting listening experience every time. Needless to say, the better the recording the more the timbre definition is marked. 

"timbre" means the door bell. You can just use a 2￠ word like "tone".☺

 

[salla45]

"timbre" means the door bell. You can just use a 2￠ word like "tone".☺

Why use a simple word when you can use a posh one

 

[salla45]

  I think one poster said it best when he said that if the only thing he has to deal with is a little RF at times, it is worth it. 
 
I concur.  
 

+1

 

[jmills8]

Why use a simple word when you can use a posh one

You a reviewer in the making.