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-   -   Introducing the Buffalo III-SE-Pro 9028/9038 (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a.html)

itsikhefez 15th October 2018 10:21 PM

Quote:

Originally Posted by barrows (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a-post5573958.html#post5573958)
I prefer to use connection scheme number 2 above, this conforms with AES guidelines for wiring "balanced" connections, and I wire all my components this way. Keep the pin 1 to chassis connection as short as possible. I run a short wire from ground of the Mercury to the chassis, and make sure that all chassis panels are electrically continuous, which may require removing some anodizing or paint. Essentially this scheme assumes that your XLR cable is wired "correctly", that is with a twisted pair (or perhaps quad) for pins 2, and 3, and that pin 1 is connected to a full coverage braided shield, ideally with no drain wire. Here is a great paper on grounding, differential signaling, and balanced connections from Bruno Putzeys

Thanks alot Barrows, this is exactly what I was looking for.
I hooked up my XLR cables a while ago. I used Mogami 2534, and believe I combined 2x clear to pin (2), 2x blue to pin (3), and shield to pin (1).

bkdog 15th October 2018 10:42 PM

Sounds good! (sic) That Mogami cable is quad star with is worth the extra in my experience, although I prefer the Canare equivalent. As well as the excellent article by Bruno Butzeys that Barrows pointed you to, there's an excellent article on the Rane site on the Pin 1 Problem, and an equally excellent article on the Linear Audio site about how the pin 1 to chassis fix has corner cases that still allow problems. In practice, I have found the advice in the Race article to work in all cases so far.

sbelyo 25th October 2018 07:46 PM

I'm having trouble finding u.fl cables on mouser to connect the digital sections. I need 4 right angle female cables on both sides correct? Can someone share a mouser part number if they have one

pixelpusher 25th October 2018 08:53 PM

Quote:

Originally Posted by sbelyo (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a-post5582833.html#post5582833)
I'm having trouble finding u.fl cables on mouser to connect the digital sections. I need 4 right angle female cables on both sides correct? Can someone share a mouser part number if they have one

I used Mouser # 798-U.FL2LP04N1A100

sbelyo 25th October 2018 09:07 PM

Quote:

Originally Posted by pixelpusher (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a-post5582898.html#post5582898)
I used Mouser # 798-U.FL2LP04N1A100

Thanks, so they work ok? They're just under 4 inches

pixelpusher 25th October 2018 11:10 PM

Quote:

Originally Posted by sbelyo (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a-post5582909.html#post5582909)
Thanks, so they work ok? They're just under 4 inches

Haven't had any problems

itsikhefez 25th October 2018 11:15 PM

Quote:

Originally Posted by sbelyo (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a-post5582909.html#post5582909)
Thanks, so they work ok? They're just under 4 inches

If you want shorter ones, I used these:
Linx Technologies Plug (Female) Plug (Female) RF Cable Assemblies | Mouser

They come in 100,200,300mm

(they are also way cheaper)

Killingbeans 25th October 2018 11:25 PM

Quote:

Originally Posted by Russ White (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a-post5381384.html#post5381384)
I don't have access to an AP (they cost about $30K) - but ESS measured the IVY circuit + ES9018(B32 in this case) for us. B-II,III etc are all using the same DAC (ES9018).

-117db THD+N and ~129db DNR(stereo)

That output stage was identical in function to the IVY-III. Mercury is also very similar.

I have measured (on PC using sound cards) all of my modules - but those measurements are limited by the capability of the sound card ADC etc. I don't consider them very accurate - just a sanity check.

Also note that for any balanced output DAC you need a fully differential ADC on the test instrument in order to measure it accurately. The balanced output will always be superior to the SE output - but measuring differential signals by the difference of 2 SE channels is not ideal - because single ended each channel will have its own errors. That's why I would love to have an AP. If anyone wants to donate one let me know. :)


I recently stumbled upon the site audiosciencereview.com


One of its main attractions is when the user and founder of the forum: amirm dissects gear with his AP. He gets his hands on hardware via all kinds of sources (purchase or lending from other forum members/manufacturers). He does measurements with no candy coating, and it's absolutely beautiful to watch. There's been some interest i seeing how a Buffalo III stacks up compared to the commercial outings. If you lend him a reference Buffalo-IIIsePro build, I'm sure he'll gladly do any measurements you'd ask for :)


I'm going to do a build myself at some point, and I wouldn't mind lending it to him, but i'm not sure it would be the best representation :o

sbelyo 26th October 2018 02:36 AM

Quote:

Originally Posted by itsikhefez (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a-post5583008.html#post5583008)
If you want shorter ones, I used these:
Linx Technologies Plug (Female) Plug (Female) RF Cable Assemblies | Mouser

They come in 100,200,300mm

(they are also way cheaper)

I saw those first but wasn't sure if there were shorter ones. I think I'll try those

itsikhefez 29th October 2018 09:07 PM

Quote:

Originally Posted by sbelyo (https://www.diyaudio.com/forums/twisted-pear/313476-introducing-buffalo-iii-se-pro-9028-9038-a-post5583151.html#post5583151)
I saw those first but wasn't sure if there were shorter ones. I think I'll try those

Is there any concern using u.fl cables that are not especially short, something like 100-300mm ?


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