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USB to SPDIF converters shoot-out : EMU 0404 USB vs. Musiland Monitor 01 USD vs. Teralink-x vs. M2Tech hiFace - Page 104  

post #1546 of 1712

John,

 

the only expression which comes into my mind reading that page: Parole sacrosante!

what regards the cable: it's funny how big differences a good old TDR can pick up between cables. Starting from the fact that it is not common or easy at all to maintain the standard 75ohm

impedance! So i'm totally with Jocko on this. The cable is important!  But then how about the other parts, driver & receiver impedances, and specially the interfacing between them? This is where the attenuator can be a further help.

 

Ciao, George 

post #1547 of 1712

talking about well terminated BNC coaxial cables, I had the cables crimp on both end. Would the soldering type better than crimp on type ?

post #1548 of 1712

I only see links that redirect me and a search engine. I do not see a list of attenuators on this webpage.
 

Quote:
Originally Posted by jkeny View Post

I posted the minicircuits link already - http://www.minicircuits.com/products/attenuators_coax_fixed.html

These are only $12 each

 

post #1549 of 1712

George,

I wouldn't go as far as "sacred words" as I don't believe in elevating somebody to guru level but I do have a lot of respect for Jocko's experience & knowledge. If he's listening, let me state here that he knows more about this area then I have the time left to learn so I respect his knowledge. I just don't respect his ad hominem attacks on me here & on his own forum.


Edited by jkeny - 6/17/10 at 6:20pm
post #1550 of 1712
Quote:
Originally Posted by punk_guy182 View Post

I only see links that redirect me and a search engine. I do not see a list of attenuators on this webpage.
 


Is it working for anyone? It works for me

post #1551 of 1712
Quote:
Originally Posted by joseph k View Post

Punkguy!

 

That Pasternack attenuator looks to be a nice one!

 

PE7009-10

Do you think that it is a perfect match for the Audio-GD Reference One DAC and the hiFace jkeny mod?

http://www.pasternack.com/product-75-OHM-BNC-ATTENUATOR-DC-TO-1-GHz-1-WATT-PE7009-10-71538.html

 

I ask before because  I want to make sure I buy the right thing. I do not have a very big budget for attenuators.

 

Thanks for helping Joseph!

 

Edit: I just realized that I have to have at least a 50$ order in order to proceed to check out.


Edited by punk_guy182 - 6/17/10 at 6:28pm
post #1552 of 1712
Quote:
Originally Posted by joseph k View Post

Quote: "Since you guys have come on the thread it has hardly advanced the knowledge much now has it?"

 

John, up to today fellow Headfiers did not know anything about the nature of "your" misterious new activities. Now they know that these are attenuators, to be put into the SPDIF line, preferably at the receiver end, that is at the Dac.

They know where to go to get them. They know why it can be a good thing.

 

Would you not call it some "advance" in the knowledge?

You would still be waiting on that knowledge.

 

Until he found something he could sell to you.

 

The purpose of the 'Net is the open exchange of knowledge. But some folks (guess who I think is one of the prime offenders) expect guys like me to supply them with everything I know, and turn it into something they can make a few quid off of.

 

Jocko
 

post #1553 of 1712

Please, don't ask me for strong expressions like a "perfect match".. I'm quite a liberal type..

But otherways yes, I do think that it can be the right thing for You. It looks to be well done.

Also the Suhner ones that I use would cost at around that level, if new.

 

Ciao, George 

 

Edit: 50 minimum.. ouch. I got mines after some hunt at the surplus stores.


Edited by joseph k - 6/17/10 at 6:35pm
post #1554 of 1712

Ah Jesus, Jocko, lay off - you really are showing yourself up as very petty & in a poor light

 

I have posted all the details (annotated pictures, etc) of how to do the Hiface modifications - it's public domain, as I already told you so I'll ask again WHAT EXACTLY IS YOUR BEEF WITH ME!

 

Is it something to do with commercial interests? Does my product compete with yours? I'm really at a loss about what your problem is?

 

So I ask again spit it out!

post #1555 of 1712


 

Quote:
Originally Posted by punk_guy182 View Post



Do you think that it is a perfect match for the Audio-GD Reference One DAC and the hiFace jkeny mod?

http://www.pasternack.com/product-75-OHM-BNC-ATTENUATOR-DC-TO-1-GHz-1-WATT-PE7009-10-71538.html

 

I ask before because  I want to make sure I buy the right thing. I do not have a very big budget for attenuators.

 

Thanks for helping Joseph!

Those fancy pre-built attenuators are all expensive. There is no way anyone can say "Yes, this one will work. Buy it, and sod the others."

 

OK, so what to do?

 

Well, resistors are cheap. Leaded or SMT, they are cheap.Try making some and then decide which ones to use! It is not that hard to make. You can Google any number of sites, and find the formula(s) for making them.

 

Ok, some of you may not have the skills to make one. Hey, they are extremely simple to make, and as good a starting place as any to learn to solder. Yes, they will not work as good as the $15 ones.

 

They will get you 95% of the way there. Even if they are space-wired. As long as the leads are not an inch long, they will get you most of the way there.

 

Now.........since I do not own one of these doo-hickey gizmo things..........

 

It seems the output level is too high. So, where to put the pad? For reasons that might be hard to 'splain, I would start on the TX end.

 

But.........

 

There is no reason to not put some of it on the RX end. In fact, there may be a good reason to put some on the RX end.

 

The only way to know is to try.  Every system is going to be different.  There is no single correct answer. You will all have to experiment, and decide what works best in your system.

 

(I think that also counts as making a positive contribution.)

 

Jocko

 

post #1556 of 1712

Jocko,

 

Funny... I think Jkeny had just found something that YOU could sell me..

 

Ciao, George

post #1557 of 1712

Jkeny:

 

I do not know why you are so thick. I know that you have been told, more than once, that someone else owns the company that you refer to. Whether you want to believe that or not, I can not control. There is a big difference between doing design work for and ownership of most companies.

 

But, using your logic (or painful lack of it), then the guy who runs BP is the same putz responsible for the crappy design of that thing that burned down, fell down, and sank into the swamp.

 

"But the next castle, laddie..............."

 

"But, Father, I just want to............"

 

"No singing."

 

Jocko

post #1558 of 1712
Quote:
Originally Posted by joseph k View Post

Jocko,

 

Funny... I think Jkeny had just found something that YOU could sell me..

 

Ciao, George


What would that be then?

 

Funny, Jocko, I was told on your DiyHiFi.org  thread not to attempt to try to DIY this

post #1559 of 1712
Quote:
Originally Posted by jkeny View Post

George,

I wouldn't go as far as "sacred words" as I don't believe in elevating somebody to guru level but I do have a lot of respect for Jocko's experience & knowledge. If he's listening, let me state here that he knows more about this area then I have the time left to learn so I respect his knowledge. I just don't respect his ad hominem attacks on me here & on his own forum.

 

The people I do some work for do not appreciate you equating them to me.

 

I do not appreciate you telling everyone that I don't answer your questions, because the reply is over your head.

 

You are guilty of both.

 

Over here, we are on the same level. So, can't say I hide behind being Il Duce. When you learn to treat me in the same manner as you want to be treated, we will not have these problems. I doubt that will happen. I could be wrong. Go ahead: make everyone's day.

 

Jocko
 

post #1560 of 1712

@Joseph K

@Jocko Homo

 

I have a good SPDIF cable. It is the Oyaide DB-510 (0.70meters). http://www.oyaide.com/e_audio/audio_products_files/dr_db-510.htm

I'd like to sell it on order to raise some cash for other audio gear and use this 10db BNC T-Pad (BNC male to BNC male) attenuator between the hiFace and the DAC. http://www.pasternack.com/product-75-OHM-BNC-ATTENUATOR-DC-TO-1-GHz-1-WATT-PE7009-10-71538.html

 

Is that a good idea? Or should I avoid using USB cables and stick with my S/PDIF cable?

 

What do you guys think? Which is more detrimental to SQ, S/PDIF or USB cables?


Edited by punk_guy182 - 6/17/10 at 6:59pm
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