[prot]

The Price.

That's all good but hopefully you do know that 'linear' is not a magic word that makes any PS better. Any of those may be worse than your lamp's wallwart. Be sure that the vendor does provide detailed specs & measurements

 

[hgpsemaj]

That's all good but hopefully you do know that 'linear' is not a magic word that makes any PS better. Any of those may be worse than your lamp's wallwart. Be sure that the vendor does provide detailed specs & measurements

 
Hello Prot,
 
Thank you for your information.
 
In fact, I've bought a 'Power Supply' many years ago. And the result is sort of 'nothing good' and "nothing bad".
 
So, I am considering to get a low price power supply from TaoBao and pair it up with a Noratel 220V. 
 
As you said, I must ensure it is well designed, and also with detailed information.
 
 
Regards,

 

[prot]

Hello Prot,

Thank you for your information.

In fact, I've bought a 'Power Supply' many years ago. And the result is sort of 'nothing good' and "nothing bad".

So, I am considering to get a low price power supply from TaoBao and pair it up with a Noratel 220V. 

As you said, I must ensure it is well designed, and also with detailed information.


Regards,

Kinda sounds like you are shopping with your eyes closed & wallet open . Read some about those PSes first, e.g. http://www.bkprecision.com/support/downloads/power-supply-guide.html
Basically you should look for 2 things:
1. efficiency (how much energy is used/wasted). Should be over 90% for a SPS and over 60% for LPS.
2. regulation & ripple (difference between stated voltage and delivered). Regulation shoud be under 1% and ripple less that 50mV. A really good PS will be under 0.1% and 10mV ... dont expect it to be cheap though.

Good luck.

 

[motberg]

   
Hello Prot,
 
Thank you for your information.
 
In fact, I've bought a 'Power Supply' many years ago. And the result is sort of 'nothing good' and "nothing bad".
 
So, I am considering to get a low price power supply from TaoBao and pair it up with a Noratel 220V. 
 
As you said, I must ensure it is well designed, and also with detailed information.
 
 
Regards,

Hi hgpsemaj... I am using 3 LPS from TeraDak, the 2 for 5V I think were in the same price range you mentioned and sound better than the wall-wart supplies they replaced, The other is one of the ATX units which I have never compared to a standard ATX PS. The TeraDak guys seem pretty passionate about their stuff as well as a competent supplier... that is enough qualification for me to get the PS's I need at a reasonable cost.

 

[m0reilly]

oops...

 

[m0reilly]

   
Hello,
 
What is your 'audio player'?  foobar2000? JRiver? or
 
 
Regards,

foobar

 

[hgpsemaj]

 
heck, i don't have one of them things...where does it hook on?

Hello M0reilly,
 
Sorry for the late reply, I use it on my CD transport.
 
Regards,

 

[luxor69]

Dear friends
 
I am a new Gustard U12 owner. I have this issue: the U12 send the PCM to my DUAL Ak4399 DAC but without success. If I touch one ends of the SPDIF cable the DAC show the FS but with bad sound. If I send the SPDIF to my amplifier everything works flawlessy. If I feed my DAC from my DVD SPDIF is ok too. If I use my desktop PC the issue is still present. If I use my laptop the issue is still present. If I feed both U12 and DAC with my UPS the issue is still present. So I think there is a loop ground only between the U12 and my DAC. Someone of you has this issue? Which is the workaround. Thank you in advance

 

[hgpsemaj]

 
Hi hgpsemaj... I am using 3 LPS from TeraDak, the 2 for 5V I think were in the same price range you mentioned and sound better than the wall-wart supplies they replaced, The other is one of the ATX units which I have never compared to a standard ATX PS. The TeraDak guys seem pretty passionate about their stuff as well as a competent supplier... that is enough qualification for me to get the PS's I need at a reasonable cost.

 
Hello Mothberg,
 
Thank you very much for informing me that TeraDak could supply Linear Power Supply to us. I am looking for a Linear PS which could support the oscillator of my CD transport, but  I must sort out some details of the oscillator first.
 
Regards, 

 

[abartels]

  MX-U8 has only one advantage: better PSU (talema + LT1963 + 4x2200uF) in Gustard U12 (LM317D2T + AMS1117 + 2x2200uF)
In MX-U8 oscillators: 22.579200MHz and 24.57600MHz.... in Gustard oscillators: 49.152000MHz and 45.158400MHz interestingly why?
Better Digital Transformer (Murata DA-101C) in MX-U8, but install this in Gustard it is not problem (remove Pulse 65612nl).
Schemes looks less technologically and simply in Melidious MX-U8 (IMHO)....
Too far install oscillator 24.000000MHz from the chip XMOS...
all this doesn't inspire trust...
it is better to wait more advanced device! 
with galvanic isolators as in tanlyAudio!

 
Only one advantage,,,,, ? The power stage is a BIG advantage which can make a huge stepup in SQ
 
Lower crystal frequencies suppose to have lower jitter natively.
 
Design looks good, at least it uses NO ground from USB like U12 does,,,,,,,,,,,
 
Waiting for advanced device: it all depends on how much are you willing to pay for a DDC
 
 
MX-U8 has more possibilities to mod, simply because of it's bigger case. Hope mine arrives soon, will try to build my own HDMI-i2S output

 

[abartels]

   
Hello Mothberg,
 
Thank you very much for informing me that TeraDak could supply Linear Power Supply to us. I am looking for a Linear PS which could support the oscillator of my CD transport, but  I must sort out some details of the oscillator first.
 
Regards, 

 
Just buy the PSU you mentioned 
 
http://item.taobao.com/item.htm?spm=5706.1529727.a31f1.2.6aLAkp&id=39418148280&scm=1007.11502.5699.0&pvid=8036e3ab-d8cd-4d83-bebf-d125af2e6750&utm_campaign=website&utm_source=sendgrid.com&utm_medium=email
 
AND
 
Buy a JZ-1 (you need to know voltage of your Crystal Oscillator)
 
http://item.taobao.com/item.htm?spm=2013.1.20141002.6.UOBL1V&scm=1007.10009.3949.i24423568640&id=18140229202&pvid=38a111dd-6370-4267-a52a-24585aae2518
 
Kingwa says that JZ-1 performs VERY good EVEN when powered with simple psu.
 
Or, just use the one i noted before
 
http://www.diyinhk.com/shop/audio-kits/73-08uv-ultralow-noise-dac-power-supply-regulator-33v5v-1ax2.html
 

This one has 0,8uV noise only!!! AND it's for 2 crystals, can set 3.3V or 5V, based on LT3042
You need 2 psu's to power this very good regulator
 
 
I probably wi try this one in MX-U8 with 2x simple psu's which i have to build myself (within MX-U8 enclosure) to feed the NDK Crystals

 

[hgpsemaj]

   
Just buy the PSU you mentioned 
 
http://item.taobao.com/item.htm?spm=5706.1529727.a31f1.2.6aLAkp&id=39418148280&scm=1007.11502.5699.0&pvid=8036e3ab-d8cd-4d83-bebf-d125af2e6750&utm_campaign=website&utm_source=sendgrid.com&utm_medium=email
 
AND
 
Buy a JZ-1 (you need to know voltage of your Crystal Oscillator)
 
http://item.taobao.com/item.htm?spm=2013.1.20141002.6.UOBL1V&scm=1007.10009.3949.i24423568640&id=18140229202&pvid=38a111dd-6370-4267-a52a-24585aae2518
 
Kingwa says that JZ-1 performs VERY good EVEN when powered with simple psu.
 
Or, just use the one i noted before
 
http://www.diyinhk.com/shop/audio-kits/73-08uv-ultralow-noise-dac-power-supply-regulator-33v5v-1ax2.html
 

This one has 0,8uV noise only!!! AND it's for 2 crystals, can set 3.3V or 5V, based on LT3042
You need 2 psu's to power this very good regulator
 
 
I probably wi try this one in MX-U8 with 2x simple psu's which i have to build myself (within MX-U8 enclosure) to feed the NDK Crystals

 
 
Hello Abartels,
 
The Power Supply Unit offers two grades transformer. Which grade did you buy? Is it for your MX-U8? or? 
 
 
Regards.

 

[abartels]

   
 
Hello Abartels,
 
The Power Supply Unit offers two grades transformer. Which grade did you buy? Is it for your MX-U8? or? 
 
 
Regards.

 
Hi hgpsemaj,
 
I didn't buy one, don't need them, but if i HAD to buy one, i would opt for the cheapest solution since you need TWO pieces, and TWO JZ-1 OR  ONE LT3042 (which i suppose is best and better than JZ-1)
 
And no, i won't use those for MX-U8, like i wrote, i will build my own psu inside enclosure of MX-U8

 

[conquerator2]

This should berenamed to the modding thread

 

[abartels]

This should berenamed to the modding thread

 
Hahahahaha, you are right man