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<blockquote data-quote="9-3turbo" data-source="post: 4135566" data-attributes="member: 587158">Hey everyone,I have a 1/2 Farad cap, Crunch 175.4 AMP, 2 MTX 6x9s rated at 100W RMS each and a single 12&quot; Sony 4 ohm sub that I&#039;m having a problem with.&nbsp; When I turn on the head unit all the speakers hooked up to the amp make &quot;noise&quot; for 2-3 seconds.&nbsp; This noise is like pulsating static.&nbsp; Then although the amp is on and the protection light is off absolutely no sound comes from the speakers.&nbsp; This started recently after the amp would simply turn off once the sub started working.&nbsp; Even with the gains on fairly low, whenever I turned the music up, the amp would turn off after 10-20 seconds.Tech support said it sounds like there is a bad ground and the amp might be trying to ground itself through the RCA cables.&nbsp; I checked and moved the grounds to a better position less then a foot from the amp/ cap.&nbsp; Also I checked the other speaker/ power cables.&nbsp; The positive cable to the cap did not have a good connection at all which I thought fixed the problem as at least the amp was always on now.&nbsp; However&nbsp; no sound from speakers.I&#039;m not really sure what&#039;s going on, I was thinking maybe I damaged the amp but lack of power should make it simply turn off?Any help would be appreciated.</blockquote>

[QUOTE="9-3turbo, post: 4135566, member: 587158"] Hey everyone, I have a 1/2 Farad cap, Crunch 175.4 AMP, 2 MTX 6x9s rated at 100W RMS each and a single 12" Sony 4 ohm sub that I'm having a problem with. When I turn on the head unit all the speakers hooked up to the amp make "noise" for 2-3 seconds. This noise is like pulsating static. Then although the amp is on and the protection light is off absolutely no sound comes from the speakers. This started recently after the amp would simply turn off once the sub started working. Even with the gains on fairly low, whenever I turned the music up, the amp would turn off after 10-20 seconds. Tech support said it sounds like there is a bad ground and the amp might be trying to ground itself through the RCA cables. I checked and moved the grounds to a better position less then a foot from the amp/ cap. Also I checked the other speaker/ power cables. The positive cable to the cap did not have a good connection at all which I thought fixed the problem as at least the amp was always on now. However no sound from speakers. I'm not really sure what's going on, I was thinking maybe I damaged the amp but lack of power should make it simply turn off? Any help would be appreciated. [/QUOTE]

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