Problem

[TSM]

My subwoofers pop when I reach a certain volume. No voltage drop not clipping. Also if I push one sub the other sub moves divided enclosure no leaks. Only does it when subs are hooked to amp.

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[djdilliodon!]

Pop or clicking sound they are most likely bottoming out. Are the subs in a sealed enclosure

 

[Doxquzme Premium Member]

Is It a pop or more like a Clack,clack, clack? That would be bottoming out. moving one cone only affects the other cone in a sealed compartment. Regarding the cone movement/interaction, I can't think of anything other than a leak that would cause what you are describing.

 

[Jimi77 5,000+ posts]

Sub #1 moves when you push sub #2 because moving a coil thru a magnetic field generates a current/voltage, which in turn causes the other cone to move. If the other sub moves when it's disconnected from the circuit, then your enclosure is leaking from one side to the other.

 

[Doxquzme Premium Member]

Sub #1 moves when you push sub #2 because moving a coil thru a magnetic field generates a current/voltage, which in turn causes the other cone to move. If the other sub moves when it's disconnected from the circuit, then your enclosure is leaking from one side to the other.

Oh, yeah, pull foot out...

 

[Jimi77 5,000+ posts]

Oh, yeah, pull foot out...

I thought this would be common knowledge on a car audio forum. It's Faraday's law and governs how speaker's work. If you apply voltage/current to the coil it moves within the magnetic field and if you move the coil within the magnetic field, you generate current/voltage. This is why speakers generate back EMF.

 

[Doxquzme Premium Member]

I thought this would be common knowledge on a car audio forum. It's Faraday's law and governs how speaker's work. If you apply voltage/current to the coil it moves within the magnetic field and if you move the coil within the magnetic field, you generate current/voltage. This is why speakers generate back EMF.

I'm sure it is well known, just at times, one just gets in lanes...

 

[TSM]

Pop or clicking sound they are most likely bottoming out. Are the subs in a sealed enclosure

No a divided ported enclosure

 

[1aespinoza 10+ year member]

I thought this would be common knowledge on a car audio forum. It's Faraday's law and governs how speaker's work. If you apply voltage/current to the coil it moves within the magnetic field and if you move the coil within the magnetic field, you generate current/voltage. This is why speakers generate back EMF.

Back then I wanted to take advantage of this feature by connecting only one coil and using the other to power an LED lightstrip that would act as a voltage meter. I never did find such a strip and did not know how to make one. So the dream died.

 

[Jimi77 5,000+ posts]

No a divided ported enclosure

Sounds like your bottoming out. What frequency is the box tuned to? What frequency is the SSF set to?

 

[TSM]

No a divided ported enclosure

Sounds like your bottoming out. What frequency is the box tuned to? What frequency is the SSF set to?

Box tuned to 41 ssf is around 35.

 

[joeFi]

My subwoofers pop when I reach a certain volume. No voltage drop not clipping. Also if I push one sub the other sub moves divided enclosure no leaks. Only does it when subs are hooked to amp.

Does this popping sound come at a certain decibel ? I agree on the other guy’s thread…they’re probably bottoming out…..question; are they in a sealed or ported enclosure? If ported, it may be that you have too big of port……and may I ask what amplifier you are using? I’m a retired installer, and now just help people with their problems….

 

[TSM]

Does this popping sound come at a certain decibel ? I agree on the other guy’s thread…they’re probably bottoming out…..question; are they in a sealed or ported enclosure? If ported, it may be that you have too big of port……and may I ask what amplifier you are using? I’m a retired installer, and now just help people with their problems….

It's not the port had box for 3 years does it no matter what amp I use.

 

[joeFi]

It's not the port had box for 3 years does it no matter what amp I use.

Then it has to be sub problem…….something isn’t jiving

 

[joeFi]

It's not the port had box for 3 years does it no matter what amp I use.

What ohm are you running with the three subs?