I have a Behringer Euroline B 212 D power speaker system which works well. I tried connecting a Liberty 4520 same size external speaker to the Behringer with a regular mic cable and get nothing but a howl. Do I need a special cable or connector? Would appreciate any help I can get.
|Behringer Eurolive B212d Active 550 Watt 2 Way Pa Speaker System With 12 Inch Woofer And 1 35 Inch C|