So I wired up 2 pioneer subs and a rockford amp in my friends truck today. I was playing bass I love you and making adjustments when one of the subs made an extremely loud noise that sounded like hitting pop bottles together. Very hard to explain. It only happened once, and is still working perfectly fine. There is no smoke or smell. Ideas?

 

Sounds like the voice-coil bobbin was hitting the back-plate. Usually a clear sign that you're driving your speaker into severe over-excursion. This can be a bad thing.

 

what type of pop bottles? like the 2L ones or the smaller 710ml type?

 

your subwoofers bottomed out (magnet slap) on the low note of that song. if your amp has a subsonic filter, i'd turn it up a bit to eliminate that happening again

 

lol 8hz ftw ( i think thats what it drops to ? )

and lol at yuli

 

i think its a mid 20hz note

 

So turning on the subsonic filter would be a good idea?

 

yes it would. i would set it around 25-30hz

 

Thanks!

 

lolololol no its not...

36hz, 34hz, 33hz, 31hz, 17hz, and 7hz are the notes in that song.

the 7hz only plays for like half a second..