causes of clipping .......

[burzendowski 10+ year member]

ok so i understand running bass boost , gain all the way up, hu turned all the way up, loudness on hu all can cause an amp to clip . now heres my problem my gain is around 1/4 my hu is at volume 15 out of 40, my loudness, bass boost and any of the boost features are all turned down or off. headunit puts out 4 volts. but when i reach volume 15 the amp clips sub starts sounding like crap makin whacking sounds and a burrrr burrrr noise. now the sub has not even began to hit . i dont understand???? i could see if im over driving the sub but how could i if this happens before it even makes bass?

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[SicAudio 5,000+ posts]

wiring issue? wrong load at the amp? box is shitty? lots of reasons. give specifics on the entire setup or everyone will flame you.

 

[KyleBechtold 5,000+ posts]

how do you know its clipping and the subs coils aren't rubbing? push in the cone when its off and see if it makes a noise..

 

[IDSkoT 5,000+ posts]

wiring issue? No wrong load at the amp? No box is shitty? No lots of reasons No. give specifics on the entire setup or everyone will flame you.

If we wanted 4 wrong answers, we would've asked EndofDays.

It's probably a sub problem, or you have it on HP rather than LP.

 

[burzendowski 10+ year member]

how do you know its clipping and the subs coils aren't rubbing? push in the cone when its off and see if it makes a noise..

my amp has an external clip indicator dd m1a. cone moves free of noise by hand

 

[burzendowski 10+ year member]

wiring issue? wrong load at the amp? box is shitty? lots of reasons. give specifics on the entire setup or everyone will flame you.

wiring = rcas from hu to amp, speaker wire from amp to sub.. not much to fuk up there.

subwoofer= single sub dd 1510 wired at 2 ohms both pos+ connect then run to + on amp , both neg- connect go to - on amp. subwoofer is dual 4ohms

box is 1.5 35hz quality built no air leaks, truck wedge sub on passenger side ported out the driver side

headunit = avh4100dvd

electrical= stock alt stock battery ,1/0 wire back to hc800 behind driver seat splits to two 4g to each amp. each amp grounded at the rear bolts that hold the seat down to bare metal, battery grounded to the frame.

 

[KyleBechtold 5,000+ posts]

pull the sub out and play it free air?

 

[hornedfrog1985 5,000+ posts]

Nvm, didn't see it was doing it before any music was even playing... //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[burzendowski 10+ year member]

pull the sub out and play it free air?

makes same noise free air

 

[treadburner 10+ year member]

bad ground?

 

[mokedaddy 5,000+ posts]

bad ground?

This is the first thing that came to my mind.

Try grounding the amps to the back battery.

 

[burzendowski 10+ year member]

heres a vid i made showing dmm at the amp truck on voltage stays up. the sounds coming from the sub sound identical in person as the vid sounds. amp is not clipping in the vid.

 

[MakeshiftAudio 10+ year member]

!!! One of my old setups did this when I grounded the chassis of the amp via metal mounting screws right to the frame of the car. There was a broken chassis-ground connection inside the amp. When I removed the screws for that, it worked again. The ground connection for the amp was connected to the rear battery, and to ground. Never figured it out, decided to use nylon bolts to fasten it down in stead. I figure it was a ground loop of the sort, but I did not want to run another wire to the front big 3 ground connection.

 

[SicAudio 5,000+ posts]

wiring issue? wrong load at the amp? box is shitty? lots of reasons. give specifics on the entire setup or everyone will flame you.

If we wanted 4 wrong answers, we would've asked EndofDays.
It's probably a sub problem, or you have it on HP rather than LP.

can you read at all you ****ing gay ****? ground is a wiring issue moron jesus you have got to be the stupidest ****** on earth.

I am willing to bet that you have to remember to breathe when you wake up.

 

[SicAudio 5,000+ posts]

wiring = rcas from hu to amp, speaker wire from amp to sub.. not much to fuk up there.
subwoofer= single sub dd 1510 wired at 2 ohms both pos+ connect then run to + on amp , both neg- connect go to - on amp. subwoofer is dual 4ohms

box is 1.5 35hz quality built no air leaks, truck wedge sub on passenger side ported out the driver side

headunit = avh4100dvd

electrical= stock alt stock battery ,1/0 wire back to hc800 behind driver seat splits to two 4g to each amp. each amp grounded at the rear bolts that hold the seat down to bare metal, battery grounded to the frame.

how sure are you of the tuning? that port looks huge to be 35 Hz at 1.5 cubes. give some exact specs on the box. from the video it "sounds" like it is bottoming but im on a laptop with junk speakers.