[Kelowna]

The Wyrd isn't a 30W power supply. It's a USB cleaner.

 

[rb2013]

  The point is I'm actually showing proof of things rather than blabbering BS. 

Just a free flow of Mike knowledge?  Streaming consciousness. And how about a  message on the meaning of life while you're at it?
 
Maybe parse a bit to us 'idiots' to digest before launching into the next 6 subjects...

 

[rb2013]

  The Wyrd isn't a 30W power supply. It's a USB cleaner.

2.5uv looks pretty good - and no soldering iron needed.
 
It's a Class A 2.5uv power supply - just feeding it through a USB port.
 
That can be easily converted to a stand alone PS.

 

[Kelowna]

 
Just a free flow of Mike knowledge?  Streaming consciousness. And how about a  message on the meaning of life while you're at it?
 
Maybe parse a bit to us 'idiots' to digest before launching into the next 6 subjects...

Every engineer I know gets phase noise specs from machines like the Aligent 5052. Not what guys claim on forums. So I'm sharing plots direct from the clock manufacturer backing up my claims. Is that frowned upon? 

 

[Kelowna]

The LDO might be rated at 2.5uV ripple, but if you read my post a few back that's meaningless without knowing the PSRR of the LDO, and the ripple noise of the supply feeding it. Also what's the leakage current rating? 
 
Considering the supply feeding it is a noisy general purpose computer USB port, it better have a high PSRR through the audible range. 

 

[rb2013]

  Every engineer I know gets phase noise specs from machines like the Aligent 5052. Not what guys claim on forums. So I'm sharing plots direct from the clock manufacturer backing up my claims. Is that frowned upon?
 

No that is not frowned upon - I'm no idiot (despite my last t-i-c comment) - I see the energy and enthusiasm of showing OP to be wrong.  You've been mia here - until OP shared some posts.
 
Baiting Alex into another pissing match to blow up another of my popular threads IS frowned upon.  The last time you did the (AOIP) thread was locked down for a week, you where banned and most of your posts deleted.  The thread was almost closed. 
 

 

 

[Kelowna]

I'm just clearing up some BS with facts that's all. And I was never banned from this forum. Here's another fact. the LM723 LDO is only rated at 2.5uV noise from 100hz to 10K. the PSRR is a decent 86dB, however it's only a 150mA LDO. So only useful for very low voltage applications. The $54 Belleson's have a noise rating of 1uV, PSSR throughout the entire audio bandwidth of -110dB, and can handle 2A current.  

 

[Kelowna]

Ted Smith's take on external clocks. Skip to the 3:40 for the part about External clocks. 
 
 

 

[Kelowna]

BTW. There's no soldering involved if you combine the Daitron HFS with this $29 voltage regulator block. All screw terminals. 
 
 
http://www.ebay.ca/itm/TPS7A4700-Ultralow-noise-4-VRMS-Power-Supply-1-4-20-5V-1A-for-Audio-DAC/252501322400?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20140620091118%26meid%3Df6f36c5a1f0d4835a19feea4b553afac%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D252348749037&rmvSB=true
 
And you you can set it to any voltage you want up to the voltage of the Daitron supply chosen. It's a variable voltage regulator. I don't think this is beyond the scope of skill for many who contribute to this thread based on some of the things I've read. 
 
For folks who want a supply with multiple voltage outputs no problem. Just add more regulator boards and set each one to the voltage required. Or go with the dual board:
 
http://www.ebay.ca/itm/TPS7A4700-TPS7A3301-Ultralow-noise-4-16-VRMS-Dual-Polarity-Power-Supply/252533379379?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20140620091118%26meid%3Dfb60d14dacff49e2b62339dbc7e45e31%26pid%3D100005%26rk%3D5%26rkt%3D6%26sd%3D252501322400
 
 
You have 30W on tap from the Daitron DC output. As long as total current draw doesn't exceed that you're good to go. For example you can run 3 boards. 5/9/12v, all with 1 amp max current capability, and still have more then enough current on tap from with all 3 taps running at peak output at the same time! And still under $300 total cost!

 

[carlmart]

rb2013
 
What about the sonic differences between the X1 XU-208 and the F-1 XU-208?
 
What DAC are you linking these boards to? Through I2S?

 

[Kelowna]

Wow these Daitron supplies sure go through an exhaustive amount of testing! I've never seen this level of quality control and testing from an audiophile LPS before.The best part is a lot of these specs are very relevant for audio as well.  
 
http://daitronglobal.com/products/power/list/hfs30/pdf/emc_hfs30.pdf
 
https://daitronglobal.com/products/power/list/hfs30/pdf/electric_hfs30.pdf

 

[FredA]

I'm just clearing up some BS with facts that's all. And I was never banned from this forum. Here's another fact. the LM723 LDO is only rated at 2.5uV noise from 100hz to 10K. the PSRR is a decent 86dB, however it's only a 150mA LDO. So only useful for very low voltage applications. The $54 Belleson's have a noise rating of 1uV, PSSR throughout the entire audio bandwidth of -110dB, and can handle 2A current.  

Some precisons: the wyrd use more tham one lm723 (in parallel, i assume), and is rated at 500ma. Plus, it's not fed from usb. It is fed from AC from its external supply. And powering the f-1 board with it, you get very good results, as long as the usb signal is cleaned up/isolated somehow upstream. I use an intona for cleaning the usb signal and ground.

 

[Kelowna]

Some precisons: the wyrd use more tham one lm723 (in parallel, i assume), and is rated at 500ma. Plus, it's not fed from usb. It is fed from AC from its external supply. And powering the f-1 board with it, you get very good results, as long as the usb signal is cleaned up/isolated somehow upstream. I use an intona for cleaning the usb signal and ground.

They must be talking about peak values because the rating on the datasheet is only 150mA, unless used in combination with external transistors. However I don't see any of these on the board:

http://www.ti.com/lit/ds/snvs765c/snvs765c.pdf



Edit I found the picture of the back. The voltage reg is the long chip on the back. The 2 black boxes that look like voltage regulators on the top are the transistors:

http://www.onsemi.com/pub_link/Collateral/D44H-D.PDF



Also the end result will be 100% based on the supply feeding it. If you fed it with a 5v Daitron HFS, it would probably be wonderful. However my personal choice for a dedicated supply on a budget would be the $29 board I linked to with 1 amp current capability, and noise/PSRR rating from 10-100k rather than 100-10k. But still looks like a decent unit for $99 turnkey considering it's more than just a regulator board.

 

[Kelowna]

There's also a little voltage adjusting pot on the Daitron HFS supplies to adjust the voltage up to +- 5% to compensate for voltage drop from from the regulator bank. So you can use it to dial in the the exact minimum voltage required for the input of the regulator board.

 

[Tboooe]

  Gone for 2 days on the coast - this thread has been busy!  I tried the Mutec as a SPDIF reclocker on the F-1 and in direct comparison as a USB DDC.  A well fed F-1 was better (see my rankings).  The Mutec as reclocker on the f-1 SPDIF did improve tyhe SQ, but not as much as on the Rednet 3 - just to expensive to justify.  I also had the W4S Remedy - this did not help the F-1 as a SPDIF reclocker like it did with the Breeze SU-U8.  The F-1's SPDIF output is very good - when it's well fed on it's power side.  The enshewing of the typical Murata output transformer in favor of a FPGA makes a real difference.  The Rednet 3 uses the worse Pulse output transformers.
 

Thank you for the reply.  So am I understanding you correctly...the F1 powered by a good source is better than Mutec 3+USB even with its reclocking feature?  If this is true I would love to sell my Mutec to free up some cash and get more audio goodies I've been considering.
 

 
I had one of their 'Gold Boxes'  to feed my EVO - the low noise versions get very expensive.  North of $300.

Agreed.  I got mine used on ebay for $100.