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AUDIO over IP - REDNET 3 & 16 Review. AES67 Sets A New Standard for Computer Audio
Aug 28, 2016 at 4:25 PM Post #1,651 of 3,694
soundsgoodtome said:
What about those $100-$300 server pci-e gigabit (even 10gbit) cards?
Click to expand...

I added this card to the server in my speaker rig and it works flawlessly. No dropouts at all. I use it for the DVS connection and the onboard NIC for LAN access.
 
Intel Gigabit CT PCI-E Network Adapter EXPI9301CTBLK 
 
https://www.amazon.com/gp/product/B001CY0P7G/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1
 
$27.80
 
...but I would experiment with latency settings first.
 
Aug 28, 2016 at 4:31 PM Post #1,652 of 3,694
marcblux said:
Thanks for your feedback, I am more interested in optimizing the chain starting from the Rednet than the PC itself.
Click to expand...

 
Not sure if I am understanding you. Do you mean AFTER the Rednet device? Some of the next big gains are adding a Mutec MC3+ USB as a reclocker after the RN3/D16 and then a bit more refinement by adding a wordclock master device such as the Antelope to control both the Rednet device and the Mutec.
 
Aug 28, 2016 at 5:04 PM Post #1,653 of 3,694
mourip said:
Not sure if I am understanding you. Do you mean AFTER the Rednet device? Some of the next big gains are adding a Mutec MC3+ USB as a reclocker after the RN3/D16 and then a bit more refinement by adding a wordclock master device such as the Antelope to control both the Rednet device and the Mutec.
Click to expand...


Yes indeed, I meant after the rednet in the flow.
I had well noted the benefit of the mutec, and find somehow more logical to invest there than in the pc itself, but what counts is anyhow the resulting sq. so I rely on your experiences.

Thanks
 
Aug 28, 2016 at 5:43 PM Post #1,654 of 3,694
marcblux said:
Indeed, I was forgetting this extra requirement for DVS.

Btw, you compared uber usb and AOIP, how do you position both compared to a CD drive ?
I have a resolution audio cantata that works a bit better with the integrated drive than with pure music on a mac + pont neuf + ethernet.

Many thanks
Click to expand...


Well when you say 'CD Drive' that can mean allow of different things from the PC spinner to a totl CD transport.
 
My APL DAC was built around a Denon 3910 - transport remained the rest of circuits removed.  But it can play CD,s SACD's and DVD-A's.  I can switch on the fly to the external SPDIF coax digital input by remote on the fly.  So can do real time A/B comparisons.
 
I would rate the CD's at 60 and SACD's at 75 on my scale.  So even with a decent spinner the SQ of AOIP or even a uber USB chain crushes it.  Now a really fine CD transport like Esoteric P-2 or a Wadia WT-2000 - now that is likely to be a whole other question.  But they run $4k to $5k.  And you don't have the convenience and min footprint (when you consider racks and racks of CD's, LP's, SACD's, etc...) of a music server set-up.  I still doubt they can beat the better AOIP set ups.  Decoding CD pits to bits in realtime is no mean feat.
 
Here would be my current ratings and rankings (the numbers are just a relative number - they are not percentages).  The Breeze Audio (Talema) DU-U8 = 100
 
Obviously these are my subjective ratings YMMV - and yes I have owned (had a loaner) all these for an extended period of time:
 
REDNET 3/Cerious Graphene/Mutec 3+ USB (SPDIF)/Antelope OCX (RN wClock)           270
REDNET 3/Cerious/Mutec 3+ USB/Audience au24 se digital cable                               250
REDNET 3/Cerious/Mutec 3+ USB (SPDIF reclocker)/AS Sliver Statement dig cable        240
REDNET 3/Cerious Power Cord                                                                               220
Singxer F-1 DC30W/Cerious/Recovery/DCiPur/ iPur2/Startech GB LAN Iso USB               170
Mutec 3+ Smart Clock USB/Cerious Power Cord                                                        155
Singxer F-1 DC30W/Cerious/Recovery/DCiPur/ iPur2                                                   145
PUC2 Lite TeraDak DC30W/Cerious/Regen                                                               135
Singxer F-1 DC30W/Cerious                                                                                   135
DXIO Silver/TeraDak DC-30W/Cerious                                                                      130
Singxer X-1 DC30W/Cerious/Recovery/DCiPur/iPur2                                                    125
PUC2 Lite - USB power                                                                                          110
Singxer F-1  Stock feed                                                                                          110
Breeze/Cerious Graph/WBT RCA Nexgen                                                                   109
Breeze DU-U8 with Cerious Graphene                                                                      108
 Breeze DU-U8 (Talema version)                                                                              100
Breeze DU-U8 (BingZi version)                                                                                 95
Hydra Z with LPS                                                                                                    92
Melodious MX-U8 (upgraded caps)                                                                             85
Melodious MX-U8 (stock)                                                                                          81
Gustard U12 (upgraded caps)                                                                                    76
Gustard U12 stock                                                                                                   72
iDAC DAC2 (used as a DDC)                                                                                      65
Musiland USB3.0 US Dragon                                                                                      65
M2Tech EVO with LPS                                                                                              60
Audiophileo 2  USB Power                                                                                         50
M2Tech Hiface                                                                                                         40
 
 
Note the two major leaps - one by adding the ICRON/Startech GB LAN Iso Audio USB Extender into the chain.  Then the bigger leap away from USB completely to the REDNET3 Dante AES67 AOIP.  The Mutec 3+ did not help as an ext Word Clock to the RD3 - but after the RD3 as a SPDIF reclocker - excellent.
 
Aug 28, 2016 at 5:47 PM Post #1,655 of 3,694
marcblux said:
Yes indeed, I meant after the rednet in the flow.
I had well noted the benefit of the mutec, and find somehow more logical to invest there than in the pc itself, but what counts is anyhow the resulting sq. so I rely on your experiences.

Thanks
Click to expand...


I do think you are right here - although some experiments on the PC have yielded good results (like putting a separate AC line filter & isolator on the PC alone).
 
Aug 28, 2016 at 7:34 PM Post #1,656 of 3,694
mourip said:
  I added this card to the server in my speaker rig and it works flawlessly. No dropouts at all. I use it for the DVS connection and the onboard NIC for LAN access.
 
Intel Gigabit CT PCI-E Network Adapter EXPI9301CTBLK 
 
https://www.amazon.com/gp/product/B001CY0P7G/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1
 
$27.80
 
...but I would experiment with latency settings first.
Click to expand...

 
I'm using this NIC which is directly connected to the RN3. I'm still experiencing occasional intermittent latency issues. Although, I have seen a marked improvement after updating to the latest MB LAN, NIC, video card drivers, and adjusting Windows 10 Power Management settings.
 

 
Aug 29, 2016 at 12:35 AM Post #1,658 of 3,694
trin said:
  Maybe of use, Focusrite has a guide (specific to the RedNet PCIe but can apply to all PC's in general) for Optimising a PC for low latency audio:-
 
https://global.focusrite.com/optimising-a-pc-for-low-latency-audio
Click to expand...

 
Thanks for posting the link to the article. I've seen this guide and have tried many of the recommendations. However, there are a few items mentioned in the article that I haven't tried which may be worth investigating.
 
It's my belief that I'm encountering more issues than most because I'm using a multi-function workstation used more for Internet access, rather than a dedicated server optimized for music. I have a feeling I wouldn't have as many issues if I had access to a bare-bones machine with a just clean Windows install. Having a dedicated PC for music may be a factor to consider if you are looking to go down the RedNet path. Hopefully, I'll find a magic bullet to fix my DPC latency issues because I do like the sound I'm hearing from the RN3 when I'm not experiencing latency issues.
 
Aug 29, 2016 at 10:23 AM Post #1,659 of 3,694
jazzfan said:
   
Thanks for posting the link to the article. I've seen this guide and have tried many of the recommendations. However, there are a few items mentioned in the article that I haven't tried which may be worth investigating.
 
It's my belief that I'm encountering more issues than most because I'm using a multi-function workstation used more for Internet access, rather than a dedicated server optimized for music. I have a feeling I wouldn't have as many issues if I had access to a bare-bones machine with a just clean Windows install. Having a dedicated PC for music may be a factor to consider if you are looking to go down the RedNet path. Hopefully, I'll find a magic bullet to fix my DPC latency issues because I do like the sound I'm hearing from the RN3 when I'm not experiencing latency issues.
Click to expand...

 
I would tend to agree. My machine is dedicated as a music server. I even try to do remote desktop while I am listening.
 
Definitely hang in there. It is worth it!
 
Aug 29, 2016 at 12:22 PM Post #1,660 of 3,694
To improve the latency of your network:
1. Disable background updates of your library, e.g. when using jRiver. Do it manualy whenever your not listening. These background tasks can give a massive burst of network traffic.
2. Change the settings of your network adapter, they are lousy for low latency applications. Follow these guide lines:
- http://steamcommunity.com/app/353380/discussions/0/405690850599636269/
- https://msdn.microsoft.com/en-us/library/cc558565(v=bts.10).aspx
 
Aug 29, 2016 at 4:13 PM Post #1,661 of 3,694
Hi there, I’m a happy new owner of a D16 AES configured to connect multiple DACs in a multi-amplified loudspeaker system.
 
I wanted to report that Focusrite posted a new version of REDNET CONTROL (1.10) which requires SW 3.10.0.19/ FW 4.0.2.1
 
The version 1.10, although dated 07/07/2016, is time-stamped 08/25/2016 and allows the change on the fly the sample rate: I use JRiver 22 and sample rate changes as a function of the track SR.
 
In the main configuration screen there is a button named “SR Follow”: when pressed it allows the sample rate change on the fly.
 
Sound quality is beyond my expectations as I’m coming from an isolated USB interface. However, I’m not able to determine whether it improved vs version 1.9.2
 
Aug 29, 2016 at 10:56 PM Post #1,662 of 3,694
"In the main configuration screen there is a button named “SR Follow”"
 
Which main config screen?
 
JJ
 
Aug 29, 2016 at 10:57 PM Post #1,663 of 3,694
I'm also a very satisfied owner of the D16 and it's the best digital playback for me so far.
Sounds quality is beyond my expectation and for only $1,500 it's a bargain.
Also added the AQ Diamond to the system and it brought out even more details and separations.
 
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