Report "I own a euro-power pmp1000 I am a bit confused as to how to understand the left and right inputs which is situated below the microphone sockets, should I when using mono jacks red and white do I use one above the other or side by side operating a single channel or double. Can you advise me why my CD and mini disc player on a single channel from 1 to 6 dose not operate and yet a karaoke disc player works from 1 to 8, instead I have to use CD and tape mono input with the CD tape slider"