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Wiring, Electrical & Installation
Amp powers up but no sound?
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<blockquote data-quote="llamabox" data-source="post: 7218732" data-attributes="member: 630473"><p>I am using the same brand head unit, amp and sub. Amp and sub I just bought today. I have hooked everything up correctly. (I do have a couple years in AC/DC circuits) I have double checked all my connections. I have power to the sub, it only powers on when the key is turned so I know the remote is right. I have chosen sub in the audio menu of the head unit, where I can pick rear/sub. The bass and treble is set to 0 on the head unit and the sub level is set at 5. No sound from the sub.</p><p></p><p>I assumed there might be an issue with the RCA wires or output so I hooked up the high end input with my rear channel wires. Then when I turn the key and turn on the head unit there is no power light on the amp.</p><p></p><p>I disconnect the sub and try the speaker on one of the rear channels without the amp. It beats just fine, so I know it's not bad.</p><p></p><p>So with RCA's it lights up but no sound.</p><p></p><p>With high level/speaker input no power light on the amp at all.</p><p></p><p>I disconnected the ground and used a set of jumper cables to ground it directly to the frame under the vehicle to see if it was just grounding off the RCA jacks. Still nothing.</p></blockquote><p></p>
[QUOTE="llamabox, post: 7218732, member: 630473"] I am using the same brand head unit, amp and sub. Amp and sub I just bought today. I have hooked everything up correctly. (I do have a couple years in AC/DC circuits) I have double checked all my connections. I have power to the sub, it only powers on when the key is turned so I know the remote is right. I have chosen sub in the audio menu of the head unit, where I can pick rear/sub. The bass and treble is set to 0 on the head unit and the sub level is set at 5. No sound from the sub. I assumed there might be an issue with the RCA wires or output so I hooked up the high end input with my rear channel wires. Then when I turn the key and turn on the head unit there is no power light on the amp. I disconnect the sub and try the speaker on one of the rear channels without the amp. It beats just fine, so I know it's not bad. So with RCA's it lights up but no sound. With high level/speaker input no power light on the amp at all. I disconnected the ground and used a set of jumper cables to ground it directly to the frame under the vehicle to see if it was just grounding off the RCA jacks. Still nothing. [/QUOTE]
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Amp powers up but no sound?
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