Hi, 
 
any help is appreciated a lot!!! 
 
Today i finally received my hardly used SVT-7 PRO. 
 
Connected it with a new Speakon to Jack. When turning the amp on it took a few seconds and the green light came up and the fan started. 
 
Plugged in my bass in joyful anticipation but i couldn't hear anything!!! No sound comes out!!!    
 
When hitting the strings the red "Signal" light and the orange "Thresh" light is flickering... 
 
I have absolutely no idea what the problem is. Is there a fallacy or is anything broken? 
 
Aaaaaaaaarghhhhhhh.... 
 
Please help! 
 
Thanks 
Andy 
 
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