[Komkrit]

I have some balanced phones that can not connect to the single-end amp.
They are use with my RSA SR-71B balanced amp.
 

 
For this problem,I will DIY...mini balance to 3.5mm. adapter in my way.
( All picture stamp  the date 22 April 2013...the day I had presented in my country:Thailand )

 

[Komkrit]

female mini balanced jack and 3.5mm.Viablue jack
 

 
 
Remove the outer body of the female balanced jack
 

 
 
Cut the leg.Rounding the body of mini balanced jack by the cutter.
 

 
 
Mark the proximal and distal end of the Viablue body. >>> This is the working space.
 

 

[Komkrit]

Remove exeeding corner by a file.
 

 
 
Put in to the distal end of the Viablue body to check the shape.Rear view.
 

 
 
Side view.
 

 

[Komkrit]

Remove the front locking edge of the inner jack by a file.(red arrow)
 

 
 
When remove this edge.The inner jack can insert into the outer body from the distal end.
This point is the very important because this work all part will insert from the distal end.
 

 
 
In the picture...now it can insert from distal end.
 

 

 

[Komkrit]

Shortening the rear bolt by the file.( Cut by a file is not damage the line of the bolt like a saw. )
This bolt is used to lock the mini balanced jack.
 

 

 

[Komkrit]

Solder the female mini balanced to the 3.5mm.
 

 
 
This is the picture of left,right,and ground position.
 

 
 
Solder in the length of the body of the Viablue jack.( in the previous marked )
...the sound direction come from 3.5mm. to female balanced jack...solder the wire in this direction.
 

 
 
Solder all wires.
 

 
 
Put all parts in to the bottom of the Viablue body.
 

 

[Komkrit]

This is my...compact mini balanced to 3.5mm. adapter.
 

 
 
Convert balanced phone to 3.5mm.
 

 
 
Now...my balanced phone can used with the single-end amp.
 

 

 
 
This is my DIY to share to everyone who love music.
 
Thank you for your attention.

 

[Howlin Fester]

Nice job.
Excellent Tutorial.
This is on my to do list when I get my DIY station running.  Thank you so much!

 

[milarepa]

Very nice adapter and a great post. Thanks.

 

[SpudHarris]

Brilliant work. Thanks for sharing

 

[nikongod]

That is a really nice build. 

 

[FraGGleR]

Nice job.
 
Would it have been easier to use this:  http://www.mouser.com/ProductDetail/Kobiconn/163-156N-1-E/?qs=sGAEpiMZZMv0W4pxf2HiV6eg9ypWNTL7R9GLPBVZczg%3d?
 
It is the panel mount socket instead of the board mount socket.  Less mutilation involved and has solder lugs.

 

[Komkrit]

Thanks FraGGleR.
Panel mount is more easier,not to modify the rear part for solder.

But the face of panel mount is rectangle... 10x13 mm.
..http://www.mouser.com/ds/2/253/KC-300935-195789.pdf
The face of board mount is square... 11x11 mm.
..http://www.mouser.com/ds/2/253/KC-300934-196003.pdf

I use the board mount because the face shape is more matching
with the round bottom of Viablue.That I think it more beautiful.

 

[FraGGleR]

Good point, makes sense. Thanks again for the share.

 

[milarepa]

I have now been so fortunate that I have got my very own Komkrit adapter, by cortesy of my friend Komkrit.

I would like to share a few words on how much I like this little beauty. It looks as if made in the Viablue factory, and the convenience of having such a compact adapter will allow me to balance all my future headphone cables. Currently I have only my lcd cable running on balanced, and now I can use that reference cable on any rig without a lot of hassle. This has also allowed me to finally evaluate my Intruder when running balanced or se. I must say the sq of the adapter seems really good, later hopefully I will have more cables so I can experiment more on the actual sq performance. So far I am thrilled!

Thanks Komkrit!