Hello, are you right to use thin cable in the path it does resistance and weakens the power, what number of cable are you using?
The network cable is not used for audio, it is too thin for long journeys, it is equivalent to a wire number 24 or 26 so to speak, thicker cable is used.
thanks oswaldo. It really is how you explained to me. sorry I had not written because I find it difficult to connect to the internet. It's like you say: the longer the distance to locate the speaker is longer, the driver's diameter should increase and I thought otherwise. grateful brother, regards ...