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DIY Cable Questions and Comments Thread - Page 2

post #16 of 2454
Quote:
Originally Posted by wje View Post

 

Regarding the Sennheiser plugs, very good!  Also, when I usually build such a cable with those connectors, I use a small toothpick and apply a small drop of paint on the shrinkwrap on the "inside" side.  This allows for one to easily determine which direction the plugs should be inserted for the L and the R.


Dont they only go in one way? Isnt that why one pin in each is larger than the other?

post #17 of 2454
Quote:
Originally Posted by dBel84 View Post

I recall this amp from a few years ago - it used dual 1/4" plugs for the balanced output. 

 

each TRS would represent one channel 

 

tip - + signal 

ring - -ve signal

sleeve - ground connection. 

( as noted above by WJE )

 

Amp was based on dual TPA6120 (??) chips , one per channel providing balanced operation in a fairly small form factor. 

 

..dB

 

 

Was it doobooloo's amp?

 

edit: quick google search...

http://www.head-fi.org/t/183584/doobooloos-tpa6120-based-balanced-headphone-amp

http://www.headfonia.com/doobooloos-portable-balanced-amp/

post #18 of 2454

Well I think I will help some people out as well.  If you are making Audeze cables here is a diagram of everything that you need to know.  

And short the mini xlr's as so:

 

To connect to a 1/4" or 3.5mm or 2, 3pin xlr's refer to the first diagram. 

 

To connect to a 4 pin xlr assume:

Left ground as L-

Left signal as L+

Right ground as R-

Right signal as R+

 

and connect to this diagram

AppleMark

Pin 1: L+ 

Pin 2: L-

Pin 3: R+

Pin 4: R-


Edited by Zashoomin - 10/9/13 at 1:31pm
post #19 of 2454

Here is some more help if you want to make an RCA to RCA or RCA to 1/4" or 3.5mm. 

 

here is a diagram of an RCA to 3.5mm or 1/4" jack: 

 

So for RCA to RCA, ring is signal so either left or right and the sleeve will always be ground.  

post #20 of 2454
Thread Starter 
Quote:
Originally Posted by ben_r_ View Post


Dont they only go in one way? Isnt that why one pin in each is larger than the other?

 

Yes.  They only go in one way.  However, with a small dot of paint, the person installing the cable ends will quickly be able to determine which side of the cable goes towards the inside as opposed to trying to plug it in one way, then having to flip it so the pins properly line up.

post #21 of 2454
Quote:
Originally Posted by Zashoomin View Post

and connect to this diagram

AppleMark

Pin 1: R+ 

Pin 2: R-

Pin 3: L-

Pin 4: L+

 

You have this wrong 

 

1 - L+

2 - L-

3 - R+

4 - R-

 

your way will be out of phase and the opposite stereo image ( but no stereo image because not in phase ) 

EDIT - unless you wired your own amp to match ;)  - but this is not industry standard

 

..dB


Edited by dBel84 - 8/11/13 at 3:18pm
post #22 of 2454
Thread Starter 
Quote:
Originally Posted by dBel84 View Post

 

You have this wrong 

 

1 - L+

2 - L-

3 - R+

4 - R-

 

your way will be out of phase and the opposite stereo image ( but no stereo image because not in phase ) 

EDIT - unless you wired your own amp to match ;)  - but this is not industry standard

 

..dB

 

Correct.  The diagram I posted is pinned exactly as you've described.  http://www.head-fi.org/t/676402/diy-cable-questions-and-comments-thread#post_9697472

post #23 of 2454

Sorry sorry ya you guys are right it has been corrected biggrin.gif

post #24 of 2454
Nope still wrong
post #25 of 2454
@ben_r_, don't forget about Fitear, they used HPSC too but in reverse. Large Pin = Signal, Small Pin = Ground
post #26 of 2454

now, in topic correct :)

 

 

The Canare L-4E5AT is a good cable? I will make an RCA> 3.5mm

 

foet you can take pictures inside the plug? to have a vision as you do.

post #27 of 2454
Thread Starter 
Quote:
Originally Posted by glunteer View Post

now, in topic correct :)

 

 

The Canare L-4E5AT is a good cable? I will make an RCA> 3.5mm

 

foet you can take pictures inside the plug? to have a vision as you do.

 

I'll have to check which Canare cable I have an am currently using.  I just put my camera away for the evening.  I'll see if I can get some shots posted tomorrow evening for you if someone doesn't beat me to it.

post #28 of 2454
Quote:
Originally Posted by wje View Post

 

I'll have to check which Canare cable I have an am currently using.  I just put my camera away for the evening.  I'll see if I can get some shots posted tomorrow evening for you if someone doesn't beat me to it.


OK wink_face.gif

post #29 of 2454
So no ideas for flexibility clear tubing that could be used around braided cable for an interconnect?

Guess it's time to experiment myself
post #30 of 2454
Thread Starter 

You might find some clear tubing at an auto parts store.  They should have some various diameters of tubing that is clear.  Some of the tubing might be a bit thick but you'll have to see what is available at the store.  Also, consider how you'll transition from the tubing to the connectors - shrink tube?

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