Lc8i voltage wont go up much past 1.5volts

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2020 tahoe
Non amped
Using lc8i
Front doors and rear doors to lc8i
Front to main in, rears to channel 3
Stock hu, eq setting are all flat. When i went to measure my voltage at rca out at main channel on lc8i I can only get to 1.3 ish volts. Same goes for channel 3 out and channel 3 feeds channel 4 for sub out. How cannj boost my signal a little more? Idk why it would be so low. And turning the dials on the lc8i only raises it either a little bit. So I let them both sit at 1.1 volts... and tuned everything.

Also when i tuned my 4 channel and my sub amp I set the 4 channel with no overlap and the sub channel with zero overlap on dd1+ . Not sure of where to set it or how to actually know where it needs to be.


I feelnlike the system is lacking a bit but it does get down. My volts don't drop past 14.0 which I thought would be even less. So not sure if I tuned everything right. I have no clipping that I can see. Should I be trying to get a better voltage to amps? Redoing gain iverlaps?

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Okay. Cool nothin. Ghost town anymore here it seems.

 

[Jimi77 5,000+ posts]

Are you measuring using a 0db sine wave?

 

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Are you measuring using a 0db sine wave?

Used smd dd1+ and the cd it came with . not sure what his sine waves db are off top of my head.

 

[Jimi77 5,000+ posts]

Used smd dd1+ and the cd it came with . not sure what his sine waves db are off top of my head.

Knowing what db the sine waves is pretty important. A -3db sine wave will cut output in half. Looks like the disc contains sine waves from 0 to -15db.

 

[AnthonyO 10+ year member]

Knowing what db the sine waves is pretty important. A -3db sine wave will cut output in half. Looks like the disc contains sine waves from 0 to -15db.

Yes it does. I always do my headunits at 0db with both 40hz and 1000hz. Then I would adjust the LC8 using the 0db. That way I could make sure that the headunit is sending a clean signal and getting the most out of the LC8

 

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The cd obly uas 4 tracks. 2 of them are the 40 hz and 1k hz. Other 2 tracks are for overlap.. I think the test tones are recorded at 0 db.. and I can adjust the gain overlap.. sobi guess I tunes with 0 db sine wave and set everything to zero overlap or no gainnoverlap.. would that be why everything sounds "quiet"

I have 3 xv3 15s on a salt 8.. wired to 1.3 this should be still blowing me out my seat. But it sounds like it's lacking

 

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My problem is that the lc8i isn't adjusting my voltage up much at all.. like not even .5 volts

 

[AnthonyO 10+ year member]

Your CD should have these tracks

• DD-1 CD Track 1 (40Hz @ -0dB)
• DD-1 CD Track 2 (1kHz @ -0dB)
• DD-1 CD Track 3 (40 Hz @ -5dB)
• DD-1 CD Track 4 (1kHz @ -5dB)
• DD-1 CD Track 5 (40Hz @ -10dB)
• DD-1 CD Track 6 (1kHz @ -10dB)
• DD-1 CD Track 7 (40Hz @ -15dB)
• DD-1 CD Track 8 (1kHz @ -15dB)
• DD-1 CD Track 9 (pink noise)

 

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That's the dd1
The dd1+ has only 4

Your CD should have these tracks

• DD-1 CD Track 1 (40Hz @ -0dB)
• DD-1 CD Track 2 (1kHz @ -0dB)
• DD-1 CD Track 3 (40 Hz @ -5dB)
• DD-1 CD Track 4 (1kHz @ -5dB)
• DD-1 CD Track 5 (40Hz @ -10dB)
• DD-1 CD Track 6 (1kHz @ -10dB)
• DD-1 CD Track 7 (40Hz @ -15dB)
• DD-1 CD Track 8 (1kHz @ -15dB)
• DD-1 CD Track 9 (pink noise)

tracks.
I have the dd1+ , just got home. I think the dd1 has all those other tracks. Diff tool. So it says these are 0 db. So I tuned with a 0 db wave with zero and no overlap on both my amps.