RCA signal became audibly louder / stronger..

[OKAY]

I have not changed any equipment besides the sub amp RCA cable. And im not too sure if this started the moment i switched the rca or weeks after the switchout because i dont know. One day i noticed i had to turn my sub amp gain down a lot and i also noticed i am now down to +5 to +7 out of +10 on the HU sub level. Any higher on the HU sub level seems to audibly clip more, if that makes any sense.

Both my sub amp gain dial was noticeably higher and so was the HU sub level (+10). Now both are noticeably lower. And now any higher then +6 or +7 on the HU sub level the output is.. i dont know clipping?

Seems i get better output volume at the lower HU sub level..

What happened?

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[Jeffdachef 5,000+ posts]

One side of your old RCA probably went bad. Causes hella weak signal

 

[OKAY]

One side of your old RCA probably went bad. Causes hella weak signal

I have 2 neg. runs both going to the frame from both batteries in the back. Everything is 3/0 except one of those neg. runs to the frame is zero sky high wire. The lug on the 3/0 was loose so im in the process of fixing that and disconnected it.

Now its only the one 0 ground going to the frame. Now it is louder my output has improved tremendously with only this one ground and voltage is fine. Why?

One thing i forgot to mention was that the length of the 3/0 neg i removed looks to be kind of long than should be..maybe this is the reason?

Pics below of the 3/0 with loose lug and with the 3/0 removed (currently).

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[Jeffdachef 5,000+ posts]

I have 2 neg. runs both going to the frame from both batteries in the back. Everything is 3/0 except one of those neg. runs to the frame is zero sky high wire. The lug on the 3/0 was loose so im in the process of fixing that and disconnected it.
Now its only the one 0 ground going to the frame. Now it is louder my output has improved tremendously with only this one ground and voltage is fine. Why?

One thing i forgot to mention was that the length of the 3/0 neg i removed looks to be kind of long than should be..maybe this is the reason?

Pics below of the 3/0 with loose lug and with the 3/0 removed (currently).

Sent from my LG-H631 using Tapatalk

sounds like the 3/0 run was loose and since its at the same location, its making the bolt securing the 1/0 and 3/0 both loose as well even though it feels tight. I'd do a seperate dedicated ground for the 3/0 if you put it on. Might want to sand the ground area down even more as well.

 

[OKAY]

sounds like the 3/0 run was loose and since its at the same location, its making the bolt securing the 1/0 and 3/0 both loose as well even though it feels tight. I'd do a seperate dedicated ground for the 3/0 if you put it on. Might want to sand the ground area down even more as well.

Speaking of i just now smoked one sub!

Courtesy of Katy perry ET By dj inclined

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[Jeffdachef 5,000+ posts]

Speaking of i just now smoked one sub!
Courtesy of Katy perry ET By dj inclined

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yeah his katy perry stuff is basically 0 db test tones have to be careful with those. Thats why you dont passively set gains, you have to actively monitor and know each song's bass levels., always creep up on a song and back it off when it stops getting louder. Volume knob should not be the same place for each song.

Dude there's a guy selling two hdc4 15s for 550 OBO on so cal stereo systems for sale group in facebook

 

[Savackz]

yeah his katy perry stuff is basically 0 db test tones have to be careful with those. Thats why you dont passively set gains, you have to actively monitor and know each song's bass levels., always creep up on a song and back it off when it stops getting louder. Volume knob should not be the same place for each song.

Dude there's a guy selling two hdc4 15s for 550 OBO on so cal stereo systems for sale group in facebook

That's why my gain is much highe than what it needs to be

 

[OKAY]

yeah his katy perry stuff is basically 0 db test tones have to be careful with those. Thats why you dont passively set gains, you have to actively monitor and know each song's bass levels., always creep up on a song and back it off when it stops getting louder. Volume knob should not be the same place for each song.

Dude there's a guy selling two hdc4 15s for 550 OBO on so cal stereo systems for sale group in facebook

Yeah i broke my remote gain and forgot all about it.

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[Jeffdachef 5,000+ posts]

Yeah i broke my remote gain and forgot all about it.
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hey man, that guy said he'll accept 450 for both subs picked up in a PM.. thats a killer deal for two HDC4 15s I know you want some heavy hittin monsters to hit that 150.

 

[skylineTT 10+ year member]

yeah his katy perry stuff is basically 0 db test tones have to be careful with those. Thats why you dont passively set gains, you have to actively monitor and know each song's bass levels., always creep up on a song and back it off when it stops getting louder. Volume knob should not be the same place for each song.

Dude there's a guy selling two hdc4 15s for 550 OBO on so cal stereo systems for sale group in facebook

so. many. tabs.

 

[Jeffdachef 5,000+ posts]

so. many. tabs.

thats actually cleaned up yo. Normally 50+ tabs.