i tried an 100 Ohm 1/2 watt resistor but it's still quiet in my cab. i put one end of the resistor in the left front (+) and one in the (-). is that the correct way to install?
i also found an old headphone jack and attached the left channel to the front left speaker input of the LC7i and played music through the phone. nothing. i may need a beefier signal.
so still having trouble on the input and output side of my system.
Give us a call again. Perhaps we can have a look at your LC7i.