[GreenBow]

  A small reminder for all you Mojo-owners; Peter started a good thread about specific recommendations for music that sounds great through Mojo.
 
Please stop-by and add your own suggestions!
 
www.head-fi.org/t/802832/mojos-greatest-hits

 
What doesn't sound good through Mojo?

 

[x RELIC x]

I've seen a few posts suggesting low impedance IEMs drain the battery quicker than full-size earphones. This is counterintuitive to my mind, especially as the volume setting for earphones is higher than that used for IEMs. I thought that low impedance = low resistance = low power needed to drive them.

Would anyone like to take a stab at explaining this to me in child speak?

Basic physics.

Voltage is analogous to water pressure through a hose and current is analogous to water volume through a hose. You may have water flow through a hose nozzle with your finger plugging the end (high impedance), requiring more pressure (voltage), but actually less volume of water (power) is flowing through. A fully open hose nozzle (low impedance) allows more water (power) through, though with less pressure (voltage). The two are inversely related.

So for high impedance headphones if you don't push enough voltage (higher volume setting) you won't get good control of the transducer for a given sensitivity rating, but it doesn't suck up as much power. For low impedance headphones the voltage requirement is lower (lower volume setting) but there is less resistance to the power flow so it sucks the juice faster for the same sensitivity rating. In simple terms.

In summary:

Higher impedance (high resistance to flow) requires more voltage but it sips the power. Lower impedance (low resistance to flow) uses more current and gobbles up the power.

 

[Wilderbeast]

Basic physics.

Voltage is analogous to water pressure through a hose and current is analogous to water volume through a hose. You may have water flow through a hose nozzle with your finger plugging the end (high impedance), creating more pressure (voltage), but actually less volume of water (power) is flowing through. A fully open hose nozzle (low impedance) allows more water (power) through, though with less pressure (voltage). The two are inversely related.

So for high impedance headphones if you don't push enough voltage (higher volume setting) you won't get good control of the transducer for a given sensitivity rating, but it doesn't suck up as much power. For low impedance headphones the voltage requirement is lower (lower volume setting) but there is less resistance to the power flow so it sucks the juice faster for the same sensitivity rating. In simple terms.

In summary:

Higher impedance (high resistance to flow) requires more voltage but it sips the power. Lower impedance (low resistance to flow) requires more current and gobbles up the power.

I understood it within your first two sentences. Wonderfully explained, thank you.

 

[Mozartaudio]

Got the Mojo Today. The Sound ? : INCREDIBLE !!!! 

 

[tkteo]

A photo from today's presentation on Mojo and DAVE at AV One, in Singapore:
https://www.facebook.com/av1group/photos/a.426682217423431.1073741827.112788868812769/1008550939236553/?type=3&theater

 

[vhsownsbeta]

Has anyone listened to the Onkyo DP-X1 vs the Mojo using any IEMs and what were the differences?

Thinking of going either Mojo + iPhone 6 or the DP-X1 for my Solars/K10s but can't go for both right now.

I'm also 99% tidal and having to put my iPhone in airplane mode to remove interference is a bit annoying

iphone/mojo/solar is a great combination

Mojo also makes for an endgame desktop IEM solution

 

[masterpfa]

  Has anyone listened to the Onkyo DP-X1 vs the Mojo using any IEMs and what were the differences?
 
Thinking of going either Mojo + iPhone 6 or the DP-X1 for my Solars/K10s but can't go for both right now.
 
I'm also 99% tidal and having to put my iPhone in airplane mode to remove interference is a bit annoying

 
 
I have both. 
The DP-X1 is a more than capable DAP and has great features including MQA compatibility and plays virtually all formats. 
Single Ended the DX-P1 is OK but excels when used in Balanced/AGC mode, this utilises 2 DACS and 2 AMPS and this is a different game altogether. As a standalone unit it is superb.

Mojo - for me is just better, sound wise, all round. Soundstage, positioning and overall presentation is the better of the two in my experience and is my prefered choice overall.
 
IMO soundwise Mojo SE>DP-X1 Balanced/AGC mode>DX-P1 SE
 

 

 

[bclark8923]

Sick thanks! Is it detail retrieval, better bass, something else? Or just overall

 

[masterpfa]

Sick thanks! Is it detail retrieval, better bass, something else? Or just overall

All the above.

What I found with the Mojo is that you really feel like you are present at the recording stage, I fell totally immersed in the music, hearing every detail of the recording and such placement of the instruments.

An album that recreates this for me so well is "Jazz at the Pawn Shop" the placement of the live audience is such that while you can place the musicians while listening to the music the audience can be heard and distance accurately portrayed.

Now this may be such a great recording anyway but I have listened with both Mojo and DP-X1 Balanced/AGC

Mojo just re-creates the music that much better for me.
 
EDIT:

Bass oh don't get me started on the Bass, above all it is accurate and detailed, no wishy washy effect no artificial boosting either.

 

[esm87]

Anybody use the empire ears zeus with mojo? How do you find them?

 

[EagleWings]

Anybody use the empire ears zeus with mojo? How do you find them?

http://www.head-fi.org/products/empire-ears-zeus/reviews/14961

 

[esm87]

http://www.head-fi.org/products/empire-ears-zeus/reviews/14961

cheers for the link, ive read the review before, thought maybe some mojo members may use the zeus and chime in. I appreciate it its a TOTL IEM and priced as such though.

I tried the mojo a few weeks back but had to return it due to my files and hardware not being upto par to make use of its quality. Since then I have ordered new IEM's and intend to go back to the store to try them out with mojo

 

[Mojo ideas]

I'm pretty sure it's wired just like the small pigtail adapters that can be made for plugging a balanced headphone to a SE output. Not true balanced as the Mojo has no balanced topology, which as mentioned earlier by Rob is detrimental to transparency in his designs.

Balancing the output is usually employed by Dac designers to nullify the chip substrate noise. Thi noise is something that our designs don't have. Therefore Robs designs don't need this dodgy design fix as the fix itself brings with it a whole new set of distortions.

 

[oldson]

any of you guys had trouble with playback on jriver into mojo when upscaling to dsd?

 

[HPLobster]

  Great info - thanks. The challenge definitely seems to be piecing together a system (often one part at a time) without having everything already at your disposal so you can instantaneously see what your favorite combo is. You hate to throw the baby out with the bathwater (e.g. giving up on PM-3 when the problem may have been the HA-2)...but when you're at the mercy of 30-day return periods you really have no choice.
 
I loved how the PM-3 fit and felt, and it mostly sounded pretty dang good. But I found it sounded best at home on the couch and lost it's oomph when I was outdoors walking the dogs. And that's where I planned on using it the most: out and about. So my "theory" was that if I got a more colored/exaggerated can that wasn't Beats crap, that may actually be the best bet for dog walking (and then I can still get a nice open pair for at-home listening). And by returning the $300 DAC/AMP and saving $150 on the headphones I may actually end up with something that I like the sound of better. Who knows -- that theory may be sound, or it may be crap and I end up returning the V-Modas to try the Beyerdynamic T-51i next.

 
Have you actually considered the B&W P7. They certainly were on my shortlist before deciding to go with the PM-3s. Of course their sound-signature differs pretty much, but that is why I would recommend them to you after not really liking the Oppos because of the reasons you mentioned (admittedly several posts before). They definitely have a V-shaped/colored sound but IMHO fit nicely between the V-Moda and the rather neutral Oppo PM-3 (although they are not exactly what one should call neutral, but that is another beast I don´t want to wake right now….). At least, that was my listening-impression....so please guys, don´t jump at me waving frequency responses and stuff, proving me wrong

 ) They also are well build, are (only just - but still) portable headphones and they fit in your suggested budget.
Alternatively, there are the matching underdogs: The Master&Dynamic MH40, a similar sounding headphone in the same price- and build-quality-range, many reviewers – including InnerFidelity´s Tyll – tend to prefer. However, personally I didn´t have the opportunity to listen to them.