Protector/SR71B balanced to single ended adapter
Oct 25, 2011 at 10:32 PM Thread Starter Post #1 of 4

edwardsean

Headphoneus Supremus
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Hi, 
 
Does anyone have the wiring schematic to make an adapter for the RSA kobiconn balanced cable into a regular single ended plug? 
 
Thanks. 
 
Sincerely, 
 
Edward
 
 
Oct 26, 2011 at 1:20 AM Post #2 of 4
Use the 1/8" jack on the front of the amp.
 
Tying the out-of-phase connections together is begging for trouble. Thank goodness Ray added output resistors to his amps to make them cable-proof. 
 
You *could* do it correctly with a pair of transformers, but the transformers would need their own little enclosure, and that is yet another thing to carry. 
 
Oct 26, 2011 at 1:26 AM Post #3 of 4
Hi, 
 
Thanks for the help, but what I'm trying to do is simply make a convertor for my whiplash balanced cable from balanced into single ended to use with a nonbalanced amp. I bought a kobiconn female connector. Would you happen to know the pin diagram to wire the kobiconn to a miniplug?
 
Oct 26, 2011 at 6:08 AM Post #4 of 4
Connection at miniplug goes like this:
T is L+
R is R+
S is L- and R- together
 
Info about balanced pinout is available at RSA website:
Quote:
Balanced pins are terminated on the amp as follow: Left channel, PIN # 1 is Positive Signal. PIN # 3 is Negative Signal.
Right Channel, PIN # 2 is Positive Signal. PIN # 4 is Negative signal.
 

 
Hope this solves your question,
 

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