If I remember right (I am speed reading here) the 791 is an amplified block. That means that it needs a power supply. It has a jack for a sensor.

I think someone suggested connecting an IR output to the input of this block. This is correct, but do not take the elegant approach of using a mini plug into the sensor input to make this connection. That will short the power supply. Just use the screw terminals.

Also, I believe the tip of mini plugs is the plus, not the minus.

Yea, you will need a 781rg power supply to power the 791.

LOL...thanks I probably would have tried that

My mistake... I was thinking you were using a 790 connecting block (non-amplified and thusly no p/s needed).

For the 791 you need a 781r/g power supply
The mini plugs on the xantech products are tip is + and ring is -
Use the phoenix connector for connecting you IR input into the 791 block.


Sorry if I caused you any headaches.

And why not? I DID ! !


once.

If you are using one power supply for the Niles stuff, and another for the 791 block, make sure to isolate the power power supplies by not interconnecting the 12V+ lead.
The Xantech power suppy (781RG) is a regulated supply and therefore cannot be parallelled with any other supply. It will burn up in a short amount of time.