Hi everyone this is my very first post on here so forgive me I posted in the wrong section. I bought a pair of harbinger v2115 powered speakers. I have an rca to 3.5 mm to connect from the speaker to my phone. Then I have an xlr cable which is labeled as microphone, and I use this to link my speakers together. However one speaker is much louder than the other and I need to turn the volume all the way up on the low volume sp3aker. I have the xlr cable plugged into the line out in one speaker as well as the rca white and red cable plugged into that same soeaker. In the other speaker I have the other end of the xlr cable plugged into the mic/line.