Mackie Support

My main outputs are cutting in and out. The xlr outputs are working ok. Have had some commerical power problems recently. Where should I look first. Have service manual.

I nedd a service Manual of Mackie SRM 450 V2

I recently bought a new ProFX8 Mixer. Everything works fine, and I like the built in effects. I notice a considerable buzz in the speakers even when the volume is off. I know it is not the speakers as I\'ve used them with several other boards without the problem. I have tried several different power cables in several different outlets/buildings and they all seem to have the buzz/hum. Any suggestions?

I need schematic diagram of power supply for my amplifier Mackie M1400.Thanks

The \"HOT\" LED light is on and just stays on even when the amp is cold, is there any kind of \"Reset\" i can do? is a element possible diode or resistor bad on the circuit boeard(s) somewhere?