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problem amp no audio

  1. 4CH Amp Problem (Channel 3,4 low volume)

    General Car Audio Discussion
    Hi, just bought a Hifonics Zeus ZXI6404. The seller described that Channel 1-2 were working perfectly fine, but chanel 3-4 had low volume. Does anyone got an idea what the issue is or might be ?
  2. No RCA output from any amps?? Please help

    Technical & Advanced Car Audio Discussion
    I just installed a new headunit, wired 4 new door speakers, a new 4 channel amp, and put my two old amps and two old subs back in the car. The headunit powers on, as well as all three amps, and none of them turn on in protection mode. No sound comes out either subs, or door speakers. We moved...
  3. Diagnosis Needed

    General Car Audio Discussion
    Hey Guys I would really appreciate any feedback that could lead to solving an issue I'm having. Driving to work this morning I was listening to the radio (quietly) and all of a sudden I was getting no sound through the speakers and tweeters (powered by a 4x100 Clarion). I did, however have...