Chord Mojo(1) DAC-amp ☆★►FAQ in 3rd post!◄★☆
Apr 26, 2016 at 5:29 PM Post #16,816 of 42,765
I wonder how well ES9018 perform sine wave... Anyone? 
rolleyes.gif

 
Apr 26, 2016 at 5:41 PM Post #16,818 of 42,765


Keeping in mind that it's not just the DAC chip performance, but the implementation that matters as well, and the measuring tools that need to be taken in to account.

Here's HomeTheaterHiFi's measurement of the Benchmark DAC2 (undithered) with the Sabre ESS9018 DAC chip:

http://hometheaterhifi.com/reviews/dac/benchmark-dac2-dx-review-updated-polished-gem-past/


Edit: To be honest, after filtering, the sine wave looks very different than the undithered one posted in that article. It's kind of moot to compare different charts and graphs from different systems.
 
Apr 26, 2016 at 6:07 PM Post #16,819 of 42,765
Anyone try to buy the Chord Mojo case from dignisdesign.com?  It's a terrible website that seems to forget whether I signed in or not.  Also, with shipping, the cheapest case is about $92 for the USA.

Is there another place to get it?  I don't mind the cost but the website doesn't make me feel confident about their technical skills or privacy protections.  If there is no other place to get it, I might just wait for the official case.


Just to complete the story, I ordered two Mojo cases from Dignis on the 22nd. They were delivered today, the 26th. No additional fees, taxes or duty. Paid with PayPal and shipping for two was the same as for one.

Customs can take up to a week in my experience. No issues with ordering from Dignis.
 
Apr 26, 2016 at 8:01 PM Post #16,820 of 42,765
Keeping in mind that it's not just the DAC chip performance, but the implementation that matters as well, and the measuring tools that need to be taken in to account.

Here's HomeTheaterHiFi's measurement of the Benchmark DAC2 (undithered) with the Sabre ESS9018 DAC chip:

http://hometheaterhifi.com/reviews/dac/benchmark-dac2-dx-review-updated-polished-gem-past/


Edit: To be honest, after filtering, the sine wave looks very different than the undithered one posted in that article. It's kind of moot to compare different charts and graphs from different systems.


Then comparing undithered wave is only beneficial to 'see' the performance of chips (not actual devices), am I right?
 
Apr 26, 2016 at 8:23 PM Post #16,821 of 42,765
Then comparing undithered wave is only beneficial to 'see' the performance of chips (not actual devices), am I right?


As I understand it, yes (I think), but I'm far from an expert here and should probably refrain from further graph analysis, lol.

https://en.wikipedia.org/wiki/Dither

:beerchug:

Edit: Actually seeing that the links for the measurement devices are completely different compared to the Dave, Mojo, Hogo, and PCM1795 my excitement about the Dave graph may have been blown out of proportion in direct comparison to the others. I do know Rob uses an insane measurement device just so he can get to see the performance of his DACs so I have no doubt the Dave measures as well as he says.
 
Apr 26, 2016 at 8:37 PM Post #16,822 of 42,765
Just to complete the story, I ordered two Mojo cases from Dignis on the 22nd. They were delivered today, the 26th. No additional fees, taxes or duty. Paid with PayPal and shipping for two was the same as for one.

Customs can take up to a week in my experience. No issues with ordering from Dignis.

 
At this point, it's probably worth waiting for what Chord has for its case design.  I suspect there may be some Dignis cases on the resale forum soon if anyone needs them for cheaper than price + shipping.
 
Apr 26, 2016 at 9:19 PM Post #16,823 of 42,765
 
 JanFebMarAprMayJunJulAugSepOctNovDec
°C192023263133353633292521
°F666873798891959791847770
 
Average temperatures per month where I live for the last 10 years. Peaks go to 122 Fahrenheit on rare occasions during the summer.
 
 
The mojo gets hot, so does the hifiman 901.
 
 
Cheers!


I live in Adelaide, where you get to 44C in the summer. Used the Mojo in 41C ambient for hours and while it got pretty hot, it didn't miss a beat :) Oppo PM-3 did well in that heat, too.
 
Apr 26, 2016 at 10:10 PM Post #16,824 of 42,765
Apr 26, 2016 at 11:07 PM Post #16,825 of 42,765
I live in Adelaide, where you get to 44C in the summer. Used the Mojo in 41C ambient for hours and while it got pretty hot, it didn't miss a beat :) Oppo PM-3 did well in that heat, too.


What @Koolpep posted is average temp. It gets 50+ deg C here during summer.
 
Apr 26, 2016 at 11:13 PM Post #16,826 of 42,765
   
 
 
I read somewhere here that only using a mobile phone as a source connected to mojo via usb is prone to hissing/radio interference which can be reduced using ferrite cores.
 
If using DAP as a source connected via co-axial or optical, adding ferrite cores will not improve the situation.

So if I used a DAP as a transport than I would not get anymore hissing?
 
Apr 26, 2016 at 11:50 PM Post #16,827 of 42,765
So if I used a DAP as a transport than I would not get anymore hissing?


I'm not sure about that. The SE846 are very sensitive and they simply hiss with a lot of gear. Not everyone is sensitive to hiss, but if you are then you'll likely hear it no matter what the source is using the SE846. RF noise is very different from IEM hiss.

I hear a slight hiss with the JH Angie and Noble K10 using the Mojo and they are less sensitive than the SE846, and all I use are DAPs with an optical connection to the Mojo (no RF noise with optical).
 
Apr 26, 2016 at 11:57 PM Post #16,828 of 42,765
I'm not sure about that. The SE846 are very sensitive and they simply hiss with a lot of gear. Not everyone is sensitive to hiss, but if you are then you'll likely hear it no matter what the source is using the SE846. RF noise is very different from IEM hiss.

I hear a slight hiss with the JH Angie and Noble K10 using the Mojo and they are less sensitive than the SE846, and all I use are DAPs with an optical connection to the Mojo (no RF noise with optical).
Try a Dynamic Driver iem.
 
Apr 27, 2016 at 12:18 AM Post #16,829 of 42,765
Apr 27, 2016 at 4:40 AM Post #16,830 of 42,765
Hey everyone,

Just wanted to inform you, that DAR just launched a Mojo give-away challenge.

http://www.digitalaudioreview.net/2016/04/dar-prize-giveaway-7-chord-electronics-mojo/

Cheers
 

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