Fi sounds like its bottoming out only on high notes

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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Originally Posted by JoeK

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

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.

If the sub was bottoming out , it would do it on low notes
Under full excursion not in the higher range under less throw.

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

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

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

Or its being clipped......

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Originally Posted by SPLaudio

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

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mines tuned low 30s and i hear lead slap :crap: gotta fix that

felt pads fix lead slap...

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.

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Originally Posted by SPLaudio

felt pads fix lead slap...

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yup

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Originally Posted by sundownz

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.

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good to know for my newb self. thanks jacob

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.

check your dust cap too.

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Originally Posted by slim2fattycake

check your dust cap too.

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For what?