setup help

[deebo 0]

Hey,

I was running wires etc today and I decided to just make sure everything worked alright before I got my box built. So the amp turns on and appears to be fine (it isnt in protect mode) but the subs only hiss. It seems like they are moving a little bit but I dont hear any sound except for white noise. My rca's probably arent the best *rockford fosgates* but they should work and for the ground I sanded a patch in the trunk and screwed it down.

The amps manual says that white noise is caused by the amps settings but I turned them all in different ways and still nothing.

btw I have a hifonics brutus 1606d and 2 12" soundsplinter rlps and a pioneer premier 6700

any ideas?

[ANeonRider 3]

Disconnect the RCA's. Does the hiss go away? If so, either the RCA's, or the HU ground is bad.

If the hiss continues, then the amp ground is bad.

[deebo 0]

I think the RCA's are bad. I touched them while they were unplugged from the amp and it didnt make any different noise or sound or anyhting. They look kinda crappy so I am just going to go buy a new pair. I also moved the amp ground to a different place and no change which is why I think its the rca's. The subs kinda move a little bit though. Maybe I will try to change the headunit ground to rule that out.

Disconnect the RCA's. Does the hiss go away? If so, either the RCA's, or the HU ground is bad.

If the hiss continues, then the amp ground is bad.

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[deebo 0]

I bought new RCA's and they seemed to help a little bit but now instead of a hiss i have a hum lol. Could it be how I have the subs wired?

I wired them according to a picture I saw on JLs website.

I think the RCA's are bad. I touched them while they were unplugged from the amp and it didnt make any different noise or sound or anyhting. They look kinda crappy so I am just going to go buy a new pair. I also moved the amp ground to a different place and no change which is why I think its the rca's. The subs kinda move a little bit though.  Maybe I will try to change the headunit ground to rule that out.

Disconnect the RCA's. Does the hiss go away? If so, either the RCA's, or the HU ground is bad.

If the hiss continues, then the amp ground is bad.

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