tju76

Okay give me a sec I was just doing what I was told to do because apparently the flat setting for alpine is 15

I have been told that for the alpine headunits you need to set the sub level at +15 for the alpine this is flat so in reality it is 0 I googled this information and found others saying the same thing the 15 gives the sub preout the full 4 volts. Explain because from what I have read this is correct way to do this for alpine head units

I have been told that for the alpine headunits you need to set the sub level at +15 for the alpine this is flat so in reality it is 0 I googled this information and found others saying the same thing the 15 gives the sub preout the full 4 volts. Explain because from what I have read this is correct way to do this for alpine head units

I have been told that for the alpine headunits you need to set the sub level at +15 for the alpine this is flat so in reality it is 0 I googled this information and found others saying the same thing the 15 gives the sub preout the full 4 volts.

If I turn the volume up with 0 gain with sub level set at 15 on headunit like I was told I get a distortion signal at 23 with the _10db track and 20 with the -5 track I then go to amp turn up gain knob the light flashes distortion around 1/4 turn if I move it farther than that the distortion light goes off and then comes back around 2/3 if I go past 2/3 on the knob the distortion light goes off but when the gain knob is at its max the 40hz signal goes out. Let me know if I am doing anything wrong bc I believe I am doing it correct.

So is it normal that I can only have the volume at 23 with a -10db tone and 20 with a -5db tone . The amp still shows a blip at 1/4 turn and again at 2/3 so should I set gain at half to be safe or leave it at below a quarter turn it never turns solid just a flash and if you move it a mm either direction it goes away doesn't show a clipped signal at full gain only the 40 Hz signal light goes away

Should I use -5 or -10db

Okay did what everyone said and front and rear rca no clipping at max 35 same with sub rca what should I do now. My max volume to subs with lvl 15 is 20

Okay I will do headunit with 0db give me a few minutes

I am also still getting the blips for the distortion when turning up the gain never stays solid if I turn gain all the way up the 40hz signal goes off

I am also still getting the blips for the distortion when turning up the gain never stays solid if I turn gain all the way up the 40hz signal goes off

Okay -10db track it is clipping at 21 out of 35 with sub level at 15 if I have sub level at 0 it clips at 34 what is wrong with it

Do I just plug the dd1 probes into the rca outs on the back of radio

Yeah I won't know till I check it out but if it is clipping at that low of a volume with the sub level at 15 like you said something must be wrong

Thanks guys I will trying this today after work and let you know how it goes

Do you have any idea what might be wrong if it does clip at this low level

I'm using all external amps so a 4 channel and the saz 1200. I haven't tested it so I could be wrong will do it after work today I just know before when I set gains if it clipped at 35 with 0 bass when I set the gains with plus 7 my max clean signal was like 27 I wasn't using a -5db track though I believe it was the -10 db track if that makes a difference

It just seems strange having my maxed unclipped level at probably 19 out of 35 max volume haha

Thanks that is what I was thinking

Okay thank you I will do this when I get home maybe that will fix why I am not seeing clipping like I should be on the dd1.

Yes I am using the dd1 it does show that a 40hz signal is present so are you saying if I put sub level at 15 and set gains I will see where it actually clips. The only reason I have doubts is I was told by others to do the exact opposite

The sub amp clips at 35 of 35 with sub level at 0 before when I set it with sub level 7 it clipped at 28 so seven less than before I feel that I was correct to set it with the sub level at 0 which would be flat not 15. If you want to explain more I would appreciate it the headunit is the cde 148bt. And I know that clipping is indicated by a solid red but what does it mean when I turn up the gain get a red light at 1/4 turn that will turn off as soon as I move it up or down and the same at 2/3 I don't get a solid red at full gain either that's why I don't know where to set it. If I am supposed to set gain with plus 15 sub level please explain why . Thank you

Thanks for all the help

I also know this is unrelated but would inverting my subs increase the efficiency of my amplifier at all. I just inverted the subs today and noticed that it seems like I am not getting as big of a voltage drop. I was just curious I will be changing it back bc I don't like how it looks

I'm in NH I mean I was thinking cross referencing my gain settings with a DMM so I can see if the quarter turn is in the ballpark or if it's the 2/3 turn like I stated earlier I get the distortion blips but can turn up gain all the way and the light never comes on which seems very strange. But it's strange bc when I am finding the max clean signal for the amp before turning the gain knob I get a full distort signal