signal processor

I'm having a problem where every once in a while I get no audio upon starting my car. If I restart it then I'll have audio. Audio never cuts out while driving. I got stuck while troubleshooting, so heres my current situation: My setup is as follows. Pioneer head unit > Audiocontrol DQDX > 5...

My head unit already kicks *** as it is and has various kick *** specs such as 3-Way Active Crossover Network, 24-bit D/A Converters, Auto EQ, and Auto Time Alignment. But if a signal processor is a good idea which models would be recommended. I'd like to keep the price under $300 if possible...

Signal Processor