Melodious MX-U8 USB Interface 8 Core XMOS chip

[rb2013]

Also looking at this one
http://www.ebay.com/itm/261845565624?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 
And some thing like this
http://www.ebay.com/itm/301688490460?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

[Sergey83149]

Originally Posted by rb2013 /img/forum/go_quote.gif  

[color=rgb(33, 33, 33)] I do not want to be intrusive. I'm interested in what model XMOS chip installed in the MX - U8, and that GUstard?[/color]

 

[rb2013]

 

[color=rgb(33, 33, 33)] I do not want to be intrusive. I'm interested in what model XMOS chip installed in the MX - U8, and that GUstard?[/color]

Well here are the pictures for each:
U12


MX-U8

 

[abartels]

 
Any link - possibly ebay?  All I'm finding for 5V are 500mAh
 
Thanks

Sorry, my mistake, i sue Lithium Ion USB powerpack, it's the easiest way and sounds very good.
Lithium Polymer has lower internal resistance, but you have to use several in parallel to get the needed amperage and internal resistance

 

[Sergey83149]

Thanks, but photos can not make out what is written.

 

[rb2013]

Thanks, but photos can not make out what is written.

They are both the same 8U6C5 chips - just different production runs.

 

[Sergey83149]

Thank you !!!

 

[rb2013]

  Sorry, my mistake, i sue Lithium Ion USB powerpack, it's the easiest way and sounds very good.
Lithium Polymer has lower internal resistance, but you have to use several in parallel to get the needed amperage and internal resistance

Oh thanks - yes I found this one - just need to devise a cable from USB to dc socket for input
 
http://www.ebay.com/itm/XIAOMI-16000mAh-External-Power-Bank-Li-ion-Battery-Charger-5V-3-6A-100-Genuine-/131545309954?has

 

[rb2013]

This might do it  - which plug polarity did you use?  Thanks for the help!
 
 
http://www.amazon.com/DMtse-Generic-Barrel-Power-Cable/dp/B00304DZ7I

 

[MINORISUKE]

New I2S pin assignment ver1.6 (2015/06/30):
1: SDATA 3: LRCK 5: SCLK 7: MCLK 2, 4, 6, 8: GND

 

[rb2013]

Hydra Z on the way! 
 
I bought a 16,000 mAh Li ion battery to power the unit -should have plenty of juice and are very cheap (and can always use to back up my phone), if the sound pans out, I will but another and have one always on the charge.
 
Capacity 16000mAh
Color: Silver
Battery Type: 18650
Input: 5V 2A
Output: 5V 2.1A*2  MAX 3.6A
 
I will get a cable to connect the power from the battery and will also try this Forza FAW Copper Series split cable I just received.  Seperate data and power USB leads.
http://forzaaudioworks.com/en/product.php?id_product=46
 
 
Now I'll be able to do a head to head shootout with the Gustard U12 (upgraded caps), Melodious MX-U8 (upgraded caps), Audio Breeze (upgraded caps), Hydra Z with wall wart or Li ion power.  Fun!!

 

[infinity88]

Can't play 24 bit 192 Khz with MX-U8. It comes out statical, very quiet with mainly static noise from the right side only. All frequencies below 192 play perfectly. I think there's something wrong with the converter itself because I get the same result with two separate dacs and when I go into the dac with a usb input, using the same usb cord, it works fine. Can someone confirm I haven't made an error in my troubleshooting before I send back the Melodious? 

 

[rb2013]

  Can't play 24 bit 192 Khz with MX-U8. It comes out statical, very quiet with mainly static noise from the right side only. All frequencies below 192 play perfectly. I think there's something wrong with the converter itself because I get the same result with two separate dacs and when I go into the dac with a usb input, using the same usb cord, it works fine. Can someone confirm I haven't made an error in my troubleshooting before I send back the Melodious? 

Sounds like it's a bad unit.  You did the right diagnosis routine.

 

[hgpsemaj]

Mr. Liu of Melodious Audio claimed that the I2S interface pin definitions of Version 1.6 is as follow:
 
 

 
 
Regards,

 

[motberg]

  Can't play 24 bit 192 Khz with MX-U8. It comes out statical, very quiet with mainly static noise from the right side only. All frequencies below 192 play perfectly. I think there's something wrong with the converter itself because I get the same result with two separate dacs and when I go into the dac with a usb input, using the same usb cord, it works fine. Can someone confirm I haven't made an error in my troubleshooting before I send back the Melodious? 

I would try a different playback software also and use the MX-U8 original drivers...
I am not an expert, but I would think possible to have some type of driver conflict if you have 2 DAC drivers and the MX-U8 driver all active on the same computer...