Jul 12, 2016 at 8:15 PM Post #1,096 of 5,077
I wouldn't argue that Mojo is a much more capable, and better sounding, product than either DragonFly (I have the Red as well as a Mojo) ... but that level of exaggeration does no one any good.

Mojo is, physically 8 times the weight and 10 times the size of the DragonFly units (with the cap on, the DragonFly is the same length as the Mojo is wide, for example).

As for battery ... at least when traveling, you either carry some way to charge the Mojo on the go (which, if you're flying, means a portable battery that's going to be at least the size of the Mojo itself in order to actually be useful, or you gamble on in-seat power), or you're done in about 8 hours.  I can easily get longer than that with just my iPhone 6S and the DragonFly.

Here's the specs
Df 12mm X 19mm X 62mm cap removed from audioquest site weight 69g
Mojo 80mm X 60mm X 20mm from chord site weight 180g

So about 2.5 times the weight and about 3.5 times the size. Far cry from your estimate.

My df with iPhone 6plus did not last more than 6 hours with using the onkyo player app, so I'd need to charge my phone battery at that point, phone battery at less than 20% in power save mode.

This way my phone battery will be at 30% after 9.5 hours of use and I'd have to recharge the mojo but it lasts me 9.5 hours. Specs state 10 hours but I received about 9.5. The only way you'd receive less is if the first charge you didn't leave charging for the suggested 10 hours or if you used more the a 1amp charger the first time.
 
Jul 12, 2016 at 8:43 PM Post #1,098 of 5,077
Here's the specs
Df 12mm X 19mm X 62mm cap removed from audioquest site weight 69g
Mojo 80mm X 60mm X 20mm from chord site weight 180g

So about 2.5 times the weight and about 3.5 times the size. Far cry from your estimate.

My df with iPhone 6plus did not last more than 6 hours with using the onkyo player app, so I'd need to charge my phone battery at that point, phone battery at less than 20% in power save mode.

This way my phone battery will be at 30% after 9.5 hours of use and I'd have to recharge the mojo but it lasts me 9.5 hours. Specs state 10 hours but I received about 9.5. The only way you'd receive less is if the first charge you didn't leave charging for the suggested 10 hours or if you used more the a 1amp charger the first time.


I don't care what the website claims ... and it's not an estimate - I've got both the units sitting in front of me.
 
The DFR weights 22g with the cap on, the Mojo 172g - that's actual weight, on a scale, right in front of me.  By my math that makes the Mojo 7.8 times heavier (I rounded up to 8).  I don't know what number Audioquest is quoting, but it isn't the weight of the DragonFly.
 
Size wise ... well ... take a look, that sure isn't double!
 

 

 
With my SE846 I get about 7 hours on the Mojo.  Lower impedance headphones sap the power faster (ask Rob).
 
I did a flight from Italy to Heathrow and then Heathrow to Seattle about three weeks ago.  That's about 14 hours total.  The DFR fed from iPhone 6S lasted the entire trip.  Even at the BEST estimates for Mojo, never mind the realities of real-world use, that's 4 hours more.
 
Jul 12, 2016 at 8:48 PM Post #1,099 of 5,077
I don't care what the website claims ... and it's not an estimate - I've got both the units sitting in front of me.

The DFR weights 22g with the cap on, the Mojo 172g - that's actual weight, on a scale, right in front of me.  By my math that makes the Mojo 7.8 times heavier (I rounded up to 8).  I don't know what number Audioquest is quoting, but it isn't the weight of the DragonFly.

Size wise ... well ... take a look, that sure isn't double!







With my SE846 I get about 7 hours on the Mojo.  Lower impedance headphones sap the power faster (ask Rob).

I did a flight from Italy to Heathrow and then Heathrow to Seattle about three weeks ago.  That's about 14 hours total.  The DFR fed from iPhone 6S lasted the entire trip.  Even at the BEST estimates for Mojo, never mind the realities of real-world use, that's 4 hours more.

Sorry the iPhone can barely get 14 hours on standby let alone in use. I charge my iPhone half way through the day with regular use no df.
 
Jul 12, 2016 at 8:54 PM Post #1,100 of 5,077
Sorry the iPhone can barely get 14 hours on standby let alone in use. I charge my iPhone half way through the day with regular use no df.


Then I'd seriously suggest you take yours back to Apple because there's clearly a fault with your battery - unless you reside in an area with absolutely TERRIBLE cell signal.
 
14 hours on standby is ridiculous.
 
I'm at 44% right now.  I pulled it off the charger at 6 AM (so 12 hours ago).  I've made about 30 minutes of calls.  I listened to music via the DFR for the hour I walked at lunch, while using my Fenix 3 HR with Connect turned on.  I had the phone streaming to my car via Bluetooth half an hour each way to/from the office.  I've spent a good hour or so, on and off, reading the web during meetings that were too boring to focus on.  And I've sent/received at least 100 messages during the day.
 
It'll be above 20% before I retire.
 
Anything less ... it'd be useless device for me.
 
And on the plane, the radios are all switched off and all it's doing is playing music ... the radios are by far the biggest drain on the unit.
 
Jul 12, 2016 at 10:04 PM Post #1,101 of 5,077
Here's what I posted on DFR vs Mojo a long while back.
 
It's great that Mojo can play 192 (and higher) vs "just" 96...but I personally can't hear a difference between 192 and 96. I'm not sure if it's a blessing or a curse that people can. 
cool.gif

 
And I agree with the sentiment that moving from DFR to Mojo doesn't solve any battery issues -- it merely changes the equation. Whether it's your phone, or your Mojo, you've always gotta charge something...
 
Jul 12, 2016 at 10:28 PM Post #1,102 of 5,077
  Here's what I posted on DFR vs Mojo a long while back.
 
It's great that Mojo can play 192 (and higher) vs "just" 96...but I personally can't hear a difference between 192 and 96. I'm not sure if it's a blessing or a curse that people can. 
cool.gif

 
And I agree with the sentiment that moving from DFR to Mojo doesn't solve any battery issues -- it merely changes the equation. Whether it's your phone, or your Mojo, you've always gotta charge something...

 
I've seen articles proving that it's physically impossible to hear 192 v 96.
 
Jul 12, 2016 at 10:36 PM Post #1,103 of 5,077
   
I've seen articles proving that it's physically impossible to hear 192 v 96.

All the better, then. I don't need to pay $400 more for a device that sounds the same (to me)...can light up different colors (even if it's above human register of hearing)...is bigger/bulkier...and requires constant recharging.
 
I am NOT opposed to Mojo, nor am I slamming it, even though it probably sounds that way. It's probably great for plenty of people, evidenced by all the fawning over it. I just personally don't get it. To each their own!
 
Jul 12, 2016 at 10:38 PM Post #1,105 of 5,077
 
I've seen articles proving that it's physically impossible to travel faster than the speed of sound.
 
But I'm just playing devil's advocate.  

 
I heavily doubt that.
 
regardless, it has to do with the density of the waves and how our ears work. You can't hear 40KHz, either.
 
Jul 12, 2016 at 10:45 PM Post #1,106 of 5,077
   
I heavily doubt that.
 
regardless, it has to do with the density of the waves and how our ears work. You can't hear 40KHz, either.


You can doubt it all you like; the fact that the "proofs" were wrong, doesn't change that they exist.  There are lots of lovely papers and proofs of that nature if you go back into human history even just a little way - relatively speaking.
 
And while it was never a "proof", go back to the dawn of the steam engine and railways, and it was widely believed that humans couldn't travel at more than about 30 mph without suffocating.  Yet today we have people that can hit 28 mph just on the power of their own legs (by which I mean running ... faster still with mechanical advantages, say, with a bicycle).
 
And I'm not claiming I can hear 40 KHz, either.
 
There are, however, some interesting recent papers, nothing to do with the audiophile world, that are showing humans responding to signals at 35 KHz and beyond though.  Whether that's through hearing or some other means of perception isn't known at this point, but the data is interesting.  Not useful for audio I suspect, but a couple of years ago it was considered impossible in serious scientific circles also.
 
Closed mindedness and blind faith are the absolute enemies of learning.
 
Jul 12, 2016 at 11:19 PM Post #1,107 of 5,077
I tried DFR and really wanted to love it, but I heard no difference really with my Oppo PM3s and with having to also add Apple CCK, it is really not "portable" for an urban setting or walking the dog. And you lose hp volume & track control. . Returned it. Have a small tube amp on the way, will give that a try at home, for home listening. I honestly can't see paying more for an amp that costs more than the Hp's cost to begin with. Glowing balls or no glowing balls.....:D
 
Jul 12, 2016 at 11:33 PM Post #1,108 of 5,077
Funny thing is, I ended up using (and loving) DFR predominantly for my laptop-on-the-couch sessions. The only other places are (1) when mowing the lawn with my IEMs, and (2) when flying with some ANC cans I have.
 
For walking the dogs, it's Sine + Cipher straight into my iPod Touch.
 
Jul 13, 2016 at 12:47 AM Post #1,109 of 5,077
Guys, without wanting to add fuel to the fire, the 96 vs 192 / 24-bit vs 16-bit etc discussions rightfully belong in Sound Science or over at Hydrogen Audio. I have no problem with someone saying they dont care about any resolution above Redbook (or 96kHz or whatever), but when we start rehashing the old 'even bats cant hear that frequency !' stuff it gets old. None of the Dragonfly models are being marketed as one-size-fits-all DACs and personally thats fine with me - playing 192kHz files using 24/96 is basic arithmetic and anything beyond that will mean spending more money.
 
Jul 13, 2016 at 10:26 AM Post #1,110 of 5,077
Has anyone tried the black with 250ohm headphones, I'll be powering a pair of DT990 Pros so want to make sure it'll have enough juice. 
 
Also, this will be my upgrade from a Fubar Dac and iCute amp combo, am I likely to notice a difference with standard lossless CD files?
 

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