Soo I have been having this speaker for maybe two years its a Harbinger Vari Series V21115 and so far its been great. However, a few months ago I got the High Frequency speaker replaced and its started working fine. That is fixed however, a week ago, I was playing music and I connected a 1/4 cable for mysic and a Mic shure on to it. I don't know if the mic needed Phantom power but it didn't sound as loud as normal mics. Then after i raised the valume you could hear the mic. Here is where the problem starts, ever since then, My speaker cuts off when i am playing music. It doesn't turn off because the power light stays on but the music stops. I tried different cables and different inputs on the speaker and nothing. The music cuts off and then cuts back on after maybe seconds and the power stays back on. I replaced the fuse and still. Any help or what It might be?