I want to plug the power supply of an analog synth into a 6ft extension cord that is connected to a surge protector. I'm not sure of the scientific ramifications of doing this. Is this safe? Will I still get surge protection? To me, it seems like using the extension cord wouldn't make a difference, since wouldn't it be exactly the same as just using a longer cord? I was hoping someone far more knowledgeable about electricity than me could explain if this is safe or what the downsides are. Can it damage the synth, start a fire, etc? Thanks!!