[batfier]

Many reports here say "FW v1.61 NFB" is more stable. Therefore, I spend some time to repeat the test procedure I did for the other FW versions in the past:

(HDMI/IIS)-> AudioGD R7 (IIS input):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738080

(BNC out)-> Hugo 2 (coax in):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738086

(XLR/coax/toslink output)-> RME ADI-2 pro (XLR/coax/toslink input):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738094


Summary for FW Version 1.61 NFB (GU16V1_61_NFB.rom) (https://onedrive.live.com/?id=636DC4E8060D66A1!380&cid=636DC4E8060D66A1)

"v1.61 NFB" indeed works nearly as expected. Only one (and a half) issue are left to my notes:

• Using (HDMI/IIS)-> AudioGD R7 (IIS input) at PCM/176/24 music is sometimes distorted. Not distorted like in the past, when I needed to tear the cans from the head quickly, but clearly the music is badly effected. The problem can be solved by switching inputs on the AudioGD R7. It looks like a kind of sync problem. Anyhow there are no issues at all with Singxer SU-1.
• No RME Bit-Tests for 192kHz came through. The RME can not even establish a sync to the U16 for the test files. Strange! The other 96 kHz and 44kHz RME Bit Tests where past without a problem with all bit depths. Again on Singer SU-1 also the RME Bit-Tests for 192kHz passes. However, this is a more theoretical test,I did not discover issues with 192kHz music files so far.

Please find detailed test results below.
Please note, when you see "not playing (OK)", this means is not an U16 issue. There are other limitations like interface speed/specification or DAC specification.
Please also note, that I had updated Aries Femto and RME ADI-2 Firmwares, since the last tests. Not sure, if this had an effect, but you never know for sure...

So all in all it look quite good. Will continue with U16. Hope it will be stable.

 

[FredA]

Many reports here say "FW v1.61 NFB" is more stable. Therefore, I spend some time to repeat the test procedure I did for the other FW versions in the past:

(HDMI/IIS)-> AudioGD R7 (IIS input):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738080

(BNC out)-> Hugo 2 (coax in):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738086

(XLR/coax/toslink output)-> RME ADI-2 pro (XLR/coax/toslink input):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738094


Summary for FW Version 1.61 NFB (GU16V1_61_NFB.rom) (https://onedrive.live.com/?id=636DC4E8060D66A1!380&cid=636DC4E8060D66A1)

"v1.61 NFB" indeed works nearly as expected. Only one (and a half) issue are left to my notes:

• Using (HDMI/IIS)-> AudioGD R7 (IIS input) at PCM/176/24 music is sometimes distorted. Not distorted like in the past, when I needed to tear the cans from the head quickly, but clearly the music is badly effected. The problem can be solved by switching inputs on the AudioGD R7. It looks like a kind of sync problem. Anyhow there are no issues at all with Singxer SU-1.
• No RME Bit-Tests for 192kHz came through. The RME can not even establish a sync to the U16 for the test files. Strange! The other 96 kHz and 44kHz RME Bit Tests where past without a problem with all bit depths. Again on Singer SU-1 also the RME Bit-Tests for 192kHz passes. However, this is a more theoretical test,I did not discover issues with 192kHz music files so far.

Please find detailed test results below.
Please note, when you see "not playing (OK)", this means is not an U16 issue. There are other limitations like interface speed/specification or DAC specification.
Please also note, that I had updated Aries Femto and RME ADI-2 Firmwares, since the last tests. Not sure, if this had an effect, but you never know for sure...




So all in all it look quite good. Will continue with U16. Hope it will be stable.

I confirmed the issue with r7 and 176k files.

 

[PeterCraig]

Many reports here say "FW v1.61 NFB" is more stable. Therefore, I spend some time to repeat the test procedure I did for the other FW versions in the past:

(HDMI/IIS)-> AudioGD R7 (IIS input):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738080

(BNC out)-> Hugo 2 (coax in):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738086

(XLR/coax/toslink output)-> RME ADI-2 pro (XLR/coax/toslink input):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738094


Summary for FW Version 1.61 NFB (GU16V1_61_NFB.rom) (https://onedrive.live.com/?id=636DC4E8060D66A1!380&cid=636DC4E8060D66A1)

"v1.61 NFB" indeed works nearly as expected. Only one (and a half) issue are left to my notes:

• Using (HDMI/IIS)-> AudioGD R7 (IIS input) at PCM/176/24 music is sometimes distorted. Not distorted like in the past, when I needed to tear the cans from the head quickly, but clearly the music is badly effected. The problem can be solved by switching inputs on the AudioGD R7. It looks like a kind of sync problem. Anyhow there are no issues at all with Singxer SU-1.
• No RME Bit-Tests for 192kHz came through. The RME can not even establish a sync to the U16 for the test files. Strange! The other 96 kHz and 44kHz RME Bit Tests where past without a problem with all bit depths. Again on Singer SU-1 also the RME Bit-Tests for 192kHz passes. However, this is a more theoretical test,I did not discover issues with 192kHz music files so far.

Please find detailed test results below.
Please note, when you see "not playing (OK)", this means is not an U16 issue. There are other limitations like interface speed/specification or DAC specification.
Please also note, that I had updated Aries Femto and RME ADI-2 Firmwares, since the last tests. Not sure, if this had an effect, but you never know for sure...




So all in all it look quite good. Will continue with U16. Hope it will be stable.

This is what a professional QA person gets paid to do. Your hired!

 

[teatime888]

Many reports here say "FW v1.61 NFB" is more stable. Therefore, I spend some time to repeat the test procedure I did for the other FW versions in the past:

(HDMI/IIS)-> AudioGD R7 (IIS input):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738080

(BNC out)-> Hugo 2 (coax in):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738086

(XLR/coax/toslink output)-> RME ADI-2 pro (XLR/coax/toslink input):
https://www.head-fi.org/threads/gus...ing-ess-usb-chip.888947/page-32#post-14738094


Summary for FW Version 1.61 NFB (GU16V1_61_NFB.rom) (https://onedrive.live.com/?id=636DC4E8060D66A1!380&cid=636DC4E8060D66A1)

"v1.61 NFB" indeed works nearly as expected. Only one (and a half) issue are left to my notes:

• Using (HDMI/IIS)-> AudioGD R7 (IIS input) at PCM/176/24 music is sometimes distorted. Not distorted like in the past, when I needed to tear the cans from the head quickly, but clearly the music is badly effected. The problem can be solved by switching inputs on the AudioGD R7. It looks like a kind of sync problem. Anyhow there are no issues at all with Singxer SU-1.
• No RME Bit-Tests for 192kHz came through. The RME can not even establish a sync to the U16 for the test files. Strange! The other 96 kHz and 44kHz RME Bit Tests where past without a problem with all bit depths. Again on Singer SU-1 also the RME Bit-Tests for 192kHz passes. However, this is a more theoretical test,I did not discover issues with 192kHz music files so far.

Please find detailed test results below.
Please note, when you see "not playing (OK)", this means is not an U16 issue. There are other limitations like interface speed/specification or DAC specification.
Please also note, that I had updated Aries Femto and RME ADI-2 Firmwares, since the last tests. Not sure, if this had an effect, but you never know for sure...




So all in all it look quite good. Will continue with U16. Hope it will be stable.

nice job!!

 

[bequietjk]

So upon viewing your detailed test @batfier it sounds like some good hope for the U16. Interests are peaked!

I still wish these new bridges would accept USB 3.0. The only one I've seen get that job done is the XSpdif-2.

 

[motberg]

my ebay seller had the 10M antenna available so hopefully no problem....
I will be traveling for a few weeks, so will report back the results when I return.
thanks again for the heads-up on this device

Hi Folks,

I got this installed OK, very easy to setup with a 10 meter cable (was 8 USD from my eBay vendor), just dropped the antenna box out a window - it is hanging free on a bar from the window security screen with a fairly open sight to clear sky. No problem with the GPS lock. I made some preliminary observations at the link below.. using now for a couple days with great results.

https://www.head-fi.org/threads/new...tor-ladder-dacs.853902/page-322#post-15117230

(Even my Teresa Teng Greatest Hits files sounded surprisingly well recorded & refined, we must have low phase noise satellites on this side of the globe )

 

[DACLadder]

Edited: The Ebay disciplined clock units have OCXOs. But the descriptions are vague and performance is sketchy until proven. I'm taking @FredA 's approach and putting my money in an OCXO only design. If I can't see a datasheet for the clock then I'm not buying.

 

[FredA]

10 MHz Satellite Disciplined Clock buyers beware of the units that look like this and sell for around $125-$135 US. This design uses a Blox NEO-6 satellite receiver chip with integrated TCXO. Designed mainly for long term stability and not necessarily low jitter.


The units with the nice LCD panels that sell above $160 US at least have OCXOs. But the descriptions are vague and performance is sketchy until proven. I'm taking @FredA 's approach and putting my money in an OCXO only design. If I can't see a datasheet for the clock then I'm not buying.

I am still not convinced with mine. If the d.. 50ohm cable can come in...

 

[DACLadder]

Hi Folks, I got this installed OK'''
https://www.head-fi.org/threads/new...tor-ladder-dacs.853902/page-322#post-15117230

Nice! How long did it take to "discipline" the clock (10.000000 MHz) after locking to the satellite? Just curious as how long the OCXO takes to stabilize compared to the satellite.

 

[JaMo]

@DACLadder :
https://www.ebay.com/itm/10Mhz-GPSD...973&pg=2047675&_trksid=p2047675.c100005.m1851

Disciplined with the Oscilloquartz double oven OCXO

/Jan

 

[DACLadder]

@DACLadder :
https://www.ebay.com/itm/10Mhz-GPSDO-OSCILLOQUARTZ-OSA-OEM-GPS-GPSDO-10MHz-1PPS-STAR-GPS-Clock/262861459973?_trkparms=aid=555018&algo=PL.SIM&ao=1&asc=57476&meid=1855a88b77a5450ea0d8f88111f67d67&pid=100005&rk=1&rkt=12&mehot=pp&sd=263458624856&itm=262861459973&pg=2047675&_trksid=p2047675.c100005.m1851

Disciplined with the Oscilloquartz double oven OCXO

/Jan

Thank you! Finally something with specs...

The $130 Ebay discipline clocks units I trashed above have the OCXOs mounted from the bottom side of the board. I was only scanning the top side of the board. Thanks for the correction....

 

[JaMo]

I bought this one. Oscilloquartz with dual sinewave out. No GPS. Just to see how good it can perform with a high prescision LPS.

https://www.ebay.com/itm/10-MHz-Double-Oven-OCXO-Double-sinewave-OSCILLOQUARTZ-8663-XS-10MHZ/253288060152?_trkparms=ispr=1&hash=item3af92514f8:g:zb4AAOSwGzhaIOt4&enc=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&checksum=253288060152bff0385493bd4ccebfbc098fa6985c90

/J

 

[DACLadder]

I bought this one. Oscilloquartz with dual sinewave out. No GPS. Just to see how good it can perform with a high prescision LPS.

Bought it! Looks great and price is right!

 

[JaMo]

Bought it! Looks great and price is right!

Good! The best there is for small money.
/Jan

 

[DACLadder]

Good! The best there is for small money.
/Jan

Thanks again Jan! What is the input voltage? There is something cryptic mentioned "DC13-15Venter". Is that 13-15V center positive?