[navi]

DIY Guys (and girls if they exists)

I need to convert a unbalanced signal to Balanced XLR signal~  Is there are A DIY passive transformer based solution?
 If so, where can I get it?

Ivan.

[floobydust]

http://www.jensen-transformers.com/pc2xr.html

 Regards, KM

[bpape]

Unfortunately, the Jensen is balanced to unbalanced only.  IMO, if you're going the other way, an active solution is the best bet.  Symetrix used to make a nice one that was resonably priced and quiet but I think they've discontinued it now.

Bryan

[floobydust]

 True, the one I linked is opposite from what was requested (sorry, late night). However, Jensen is pretty flexible and can probably make one at the required input/output. If not you can always build your own with a pair of Jensen JT-11P-1 transformers. A quick project but note that the Jensen transformers are not cheap. They are superb in performance however.

 Regards, KM

[koiman]

Call Jensen... by going to the above web site and checking for the phone number they are very helpful.. you need a PC-2RX this will convert RCA to XLR..
Hope this helps..
Lee

[Occam]

There are less expensive options, though lacking personal experience, I can't opine as to the quality.
http://www.8thstreet.com/product.asp?ProductCode=30120&Category=Audio_Processors
http://www.edcorusa.com/products/matchers/index.html
and www.cinemag.biz also makes high quality balancing transformers

[Bob Reynolds]

DIY Guys (and girls if they exists)

I need to convert a unbalanced signal to Balanced XLR signal~  Is there are A DIY passive transformer based solution?
 If so, where can I get it?

Ivan.

As stated, Jensen is a great source (though not inexpensive). The actual product depends on whether your need is for an output or input transformer. For example, I use one of their output transformers to convert the unbalanced output of my CD player to balanced for connection to a balanced input on my preamp.

[JoshK]

In addition to others mentioned (i was going to mention cinemag and edcor but Occam beat me to it) there are:

Sowter
http://euphoniaaudio.netfirms.com/ea/nfoscomm/catalog/product_info.php?cPath=52&products_id=124&osCsid=f276567d4a5406b1214a7f2307993266
Lundahl 1676 (pricey)
Tribute custom made ones (pricey but suppose the ultimate...I just bought a pair recently but haven't tried them yet)
NOS iron off of ebay, such as UTC and the like (unknown quality)

Lots of options really...

[art]

Uh........I assume that this is on the "receive" side of things. A lot more options this way.

Depending on what transformer you pick, most seem to work better in a 4:1 step-down configuration. Trust me on this one........

Pat

[navi]

Thanks everyone!
I'll go through the sites everyone has given me-
I need it to go from my DAC (unbalanced RCA)  to (XLR balanced) active speakers

Ivan

[NewBuyer]

You might also consider the EBTech 2-Channel Hum Eliminator in your decision. It is ready-made (not DIY as you requested), and is a surprisingly good product, especially for the application you are describing. You might need to use adapters, as it uses 1/4" TRS smart-jacks for inputs/outputs.

[navi]

I have used the Ebtech before and it is good (just HATED the 1/4" jacks connectors) - But I was thinking of getting just the transformers so I can insert them into the dac - and use less cables and connections.

Ivan

[Occam]

Alternatively, you could just use rca to xlr adapters from Neutrik or wire a cable with the connectors wired appropriately. Courtesy of Wayne of diycable -
http://www.diycable.com/main/pdf/Canare.pdf
look at the bottom of page 3.
FWIW

[navi]

Alternatively, you could just use rca to xlr adapters from Neutrik or wire a cable with the connectors wired appropriately. Courtesy of Wayne of diycable -
http://www.diycable.com/main/pdf/Canare.pdf
look at the bottom of page 3.
FWIW

Occam

Not a fan of that- I've used them in the past- wasn't happy- I might as well change the connector on my XLR cable to RCA than make an adapter.

Ivan