Originally Posted by
LonnyJ1950
Do yourself a favor and dig out the instructions to your ESC just to double check. If you are using an LRP SPX plug the booster into the receiver, plug the ESC into the receiver, turn on the booster, DO NOT turn on the ESC. It should now operate your system.
to get my spx to work I had to remove the red wire from the speed control plug into the receiver only using the black and white wire. then turn the speed control on and the booster on. this is if the above doesn't work.