[rb2013]

  Rob your comment had me thinking about one of these docking stations :
 
 http://www.ebay.com/itm/Satechi-Aluminum-USB-3-0-SATA-III-HDD-SSD-Docking-Station-with-2-Port-SD-10Q-/321953951935/?_ul=HN
 
I posted the above because of versatility (HDD/SSD, USB 3.0, SD/SDHC/SDXC reader) those wanting to go all SSD could find a similar device and put in up tp 4 SSD´s, the question is would it be viable in the Super USB Chain ecosystem?

Yes if powered by a decent linear power supply (not a SMPS wall wart).  But then you don't have the galvanically isolated ground from the PC USB - that the Startech provides.  That may make a significant difference.

 

[rb2013]

  Hi, what a great thread you are leading here, a lot of great information and can be overwhelming for someone not too technical like me. I like your idea of an external PCI enclosure with an SSD drive to play music. I have a laptop that I use for music and I would like to test this concept of yours. Kindly, can you share some links to parts needed to build this solution with a Win 10 laptop? Thanks

Does your laptop have a PCIe ext input?  Order ext SATA?  Thunderbolt (I think only on MAC's)?

 

[rb2013]

Listening again last night with the Panasonic 4GB SLC in one of the empty REX USB slots  - Wow!  It really is better.  Really impressed by this.  Still another 50 hrs to go on the burnin.

 

[Spark85]

Speaking about ground, if we connect the Startech with an FTP cable and USB with shielding, we can electrically connect the ground of the PC, with the REX and therefore to the entrance of the SU-1. Very few ohms
Interestingly, that continuity measured with a polymeter, no longer occurs in the outputs of SU-1. For example, between the SU-1 chassis and the ground of the coaxial or AES / EBU output there is no continuity. That is true of the outputs of the NAD M51, for example, can measure continuity, Including analogue ones.

The ground of signal between the SU-1 and the DAC can also measure continuity.
It is as if the audio outputs of the SU-1, will take as ground reference, that of the DAC to which it is connected.

Is this a reason why Singxers sound so good?

Rob2013, ¿Have you tried the same continuity ground between your USB input and your coaxial output en the F1?
¿Do you have in your system, some cable you are using, Ethernet or USB that has that feature?

I have some USB cable with float ground to do some testing if in my case this can influence the sound.
 
The other day I heard it wonderful, of course, as never before. Startech's advantage must be good data transmission. No matter what noise the ground may have.

 

[rb2013]

  Speaking about ground, if we connect the Startech with an FTP cable and USB with shielding, we can electrically connect the ground of the PC, with the REX and therefore to the entrance of the SU-1. Very few ohms
Interestingly, that continuity measured with a polymeter, no longer occurs in the outputs of SU-1. For example, between the SU-1 chassis and the ground of the coaxial or AES / EBU output there is no continuity. That is true of the outputs of the NAD M51, for example, can measure continuity, Including analogue ones.

The ground of signal between the SU-1 and the DAC can also measure continuity.
It is as if the audio outputs of the SU-1, will take as ground reference, that of the DAC to which it is connected.

Is this a reason why Singxers sound so good?

Rob2013, ¿Have you tried the same continuity ground between your USB input and your coaxial output en the F1?
¿Do you have in your system, some cable you are using, Ethernet or USB that has that feature?

I have some USB cable with float ground to do some testing if in my case this can influence the sound.
 
The other day I heard it wonderful, of course, as never before. Startech's advantage must be good data transmission. No matter what noise the ground may have.

Do not use a shielded Ethernet CAT6 cable - use UTP only.  STP (shielded cable) will not provide galvanic isolation.
 
Yes all DDC's will provide galvanic isolation from the SPDIF connection - some with electro-magnetic transformers like the Pulse and Murata - some with a FPGA or CPLD like the Tanly, Hyda Z and Singxer F-1 and SU-1.
 
So do not confuse USB and SPDIF GI - they are different.  SPDIF is easy USB is not.   Just cutting/blocking the ground power pin will not do it.  The ground is maintained through the USB shield.

 

[Spark85]

Ok, important fact. I'll replace the ethernet cable.

 

[mozes]

Does your laptop have a PCIe ext input?  Order ext SATA?  Thunderbolt (I think only on MAC's)?

No it only has USB 2 and 3 ports

 

[rb2013]

No it only has USB 2 and 3 ports

So you would need to use the Startech/ICRON GB LAN Ethernet USB extender

 

[Paulkouhan]

I received today 2 packages : (the smalest on the bottom is the one for head fi)
 

 
Following the discutions about the USB flash drives on the Startech, I wanted to try one of my USB flash drives with separated power supply instead of my NAS server / Wifi.
 
I removed the 5V pin, soldered one jack connector and here it is :
 

 
Plugged it on my NUC,powered it with my 0.8uV ripple 5V power supply and ...
 
Wow, what a big improvement !!
 
 
Sure the power supply of all our stuff is the first thing to improve...
I am tempted to try a SSD drive powered the same way .
 
Rob, I would be very interested to know the impact of the startech (as the impact of its price is certain...). Is it possible for you to make the same USB cable so you could make a listening session without the Startech, but with a clean power suply for your USB stick ?!

 

[mozes]

So you would need to use the Startech/ICRON GB LAN Ethernet USB extender

Thanks for your help, I will check it out

 

[rb2013]

  I received today 2 packages : (the smalest on the bottom is the one for head fi)
 

 
Following the discutions about the USB flash drives on the Startech, I wanted to try one of my USB flash drives with separated power supply instead of my NAS server / Wifi.
 
I removed the 5V pin, soldered one jack connector and here it is :
 

 
Plugged it on my NUC,powered it with my 0.8uV ripple 5V power supply and ...
 
Wow, what a big improvement !!
 
 
Sure the power supply of all our stuff is the first thing to improve...
I am tempted to try a SSD drive powered the same way .
 
Rob, I would be very interested to know the impact of the startech (as the impact of its price is certain...). Is it possible for you to make the same USB cable so you could make a listening session without the Startech, but with a clean power suply for your USB stick ?!

I have a pre-made cable on the way - I plan on using it with the SSD running the OS.  But I'll repeat - for like the third time - this will not give the powered device GI from the PC's VBUS.  Only the Startech can do that.  And it's LPS powered.  So this exercise seems pointless to me

 

[Paulkouhan]

did anyone try one of these galvanic usb islators ?
 
http://intona.eu/en/products
http://www.cesys.com/products/usb-isolator/
https://www.olimex.com/Products/USB-Modules/USB-ISO/
https://electronics-shop.dk/isoleret_usb.htm?currency=EUR

 

[Mr Underhill]

Paul,
 
Various isolators covered in these threads:
 
http://www.computeraudiophile.com/f22-networking-networked-audio-and-streaming/overall-isolation-network-universal-serial-bus-industry-standard-cables-connectors-and-communications-protocols-between-computers-and-electronic-devices-and-power-29916/
 
and
 
http://www.computeraudiophile.com/f22-networking-networked-audio-and-streaming/auralic-aries-and-sonore-microrendu-listening-impressions-29351/
 
You can add the Etalon to your list.
 
I have used the FMC bridge and the EMO-70-HD in my system. Definitely had a positive effect for me.
 
These threads discuss Leakage Loops in more detail as mentioned by Alex above, and discussed by John Swenson.
 
M

 

[rb2013]

  Paul,
 
Various isolators covered in these threads:
 
http://www.computeraudiophile.com/f22-networking-networked-audio-and-streaming/overall-isolation-network-universal-serial-bus-industry-standard-cables-connectors-and-communications-protocols-between-computers-and-electronic-devices-and-power-29916/
 
and
 
http://www.computeraudiophile.com/f22-networking-networked-audio-and-streaming/auralic-aries-and-sonore-microrendu-listening-impressions-29351/
 
You can add the Etalon to your list.
 
I have used the FMC bridge and the EMO-70-HD in my system. Definitely had a positive effect for me.
 
These threads discuss Leakage Loops in more detail as mentioned by Alex above, and discussed by John Swenson.
 
M

My Sata from USB cable arrived I'll power up the SSD running my OS with a LPS tomorrow.  I'll load up some track on to the SSD and compare to the REX USB and SLC mSD card.
 
All this discussion on leakage currents  - maybe I should start saving my pennies for a LPS-1

 

[rb2013]

  did anyone try one of these galvanic usb islators ?
 
http://intona.eu/en/products
http://www.cesys.com/products/usb-isolator/
https://www.olimex.com/Products/USB-Modules/USB-ISO/
https://electronics-shop.dk/isoleret_usb.htm?currency=EUR

I had the Intona as a loaner from a friend - some folks have had good experience with it.  Not my cup of tea - I covered it's drawback a few dozen pages ago here and in depth on my XU208 thread.  For a bit more money it seems the Startech is  better bet.
 
Here's another:
 
http://hifimediy.com/high-speed-usb-isolator-480Mbps