Fi sounds like its bottoming out only on high notes

[JoeK 10+ year member]

I was listening to my Fi BL directly (head up against it) the other day and it sounds like its almost bottoming out only on high notes. Low notes sound great but its high notes that sound .. almost mechanical. I cant hear it in the car, and if i turn the gain down to where it doesnt make that noise, the sub barely moves.

I spoke to somebody local and their GPI sub does the same thing on high notes. Im trying to contac a person who owned an Fi BL and see ifthis is normal.

But for now, can anybody attest to this?

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[Serpent710 10+ year member]

I was listening to my Fi BL directly (head up against it) the other day and it sounds like its almost bottoming out only on high notes. Low notes sound great but its high notes that sound .. almost mechanical. I cant hear it in the car, and if i turn the gain down to where it doesnt make that noise, the sub barely moves.
I spoke to somebody local and their GPI sub does the same thing on high notes. Im trying to contac a person who owned an Fi BL and see ifthis is normal.

But for now, can anybody attest to this?

"Head up against it?" could be hitting your head and making the knocking noise.

 

[goingdef 10+ year member]

my fosgate subs sound bad on high notes too I think thats any sub under high power I just play a song that has that note that I dis-like and slowly turn down the lpf until it plays smoothly your gain isn't going to fix this if it's playing the lows well.

 

[4OZGLOVES 10+ year member]

If the sub was bottoming out , it would do it on low notes

Under full excursion not in the higher range under less throw.

 

[JoeK 10+ year member]

I cant hear it in the car, only if im next to it with the trunk open and whatnot. From inside i dont care. I just dont want to be blowing the sub, thats my only concern. It sounds great inside the car

 

[Serpent710 10+ year member]

To me sounds like something got in the gap, or the coil is on its way out slight unraveling

 

[SPLaudio 5,000+ posts]

i bet its ur box, prob tuned really low...

 

[tc300 10+ year member]

Or its being clipped......

 

[CAT MAN 5,000+ posts]

i bet its ur box, prob tuned really low...

mines tuned low 30s and i hear lead slap //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif gotta fix that

 

[SPLaudio 5,000+ posts]

felt pads fix lead slap...

 

[sundownz Pro Seller]

Tuning too low also combined with possibly loading on the vehicle to tune even lower can cause excursion issues at higher frequencies. The port reduces excursion most at it's actual tuning (of course) then about 1/3 octave either way.

Say you tuned to 32 Hz -- loading in the car across a nearby surface drops you to 28 Hz -- then your port is only working to reduce excursion up to ~37 Hz or so.

 

[CAT MAN 5,000+ posts]

felt pads fix lead slap...

yup

Tuning too low also combined with possibly loading on the vehicle to tune even lower can cause excursion issues at higher frequencies. The port reduces excursion most at it's actual tuning (of course) then about 1/3 octave either way.
Say you tuned to 32 Hz -- loading in the car across a nearby surface drops you to 28 Hz -- then your port is only working to reduce excursion up to ~37 Hz or so.

good to know for my newb self. thanks jacob

 

[JoeK 10+ year member]

What does tinsel slap sound like? Is it loud? Ive been hearing a 'popping' noise sometimes. I dont think its bottoming out or over exursion cause it will only do it sometimes, never on a specific note (sometimes high, sometimes low) and i still hear bass playing when i hear the slap

Power is clean going to the sub too.

 

[slim2fattycake 10+ year member]

check your dust cap too.

 

[JoeK 10+ year member]

check your dust cap too.

For what?