Just bought stagepas 400i (comes with 2 jack to jack speaker cables) and want to know how best to connect keyboard to stagepas mixer for best stereo sound. Second question, how best thereafter to connect mic?
Connect to the speakers from the marked jacks for SPEAKERS using the provided (TRS) speaker cables (very important).
Connect the L/R outputs of the CP300 to the STEREO CHANNELS 5/6 of the StagePas400i using a pair of standard (TS) signal cables. Notice that channels 5/6 are a stereo pair and have a L and R input jack to accommodate a stereo device (same is true of inputs 7/8 which can be used as an alternative or for a second stereo device).