Help needed with sub

agabriel · Postby **agabriel** » January 9th, 2012, 9:43 pm

So hears the scennario guys i am playin a treo ssx 15 using an autotek mm4000.1 and regardless of wat box i put it in the speakers seems to be bottomin out.

i also noticed that the speaker is moving inwards instead of moving outwards when i connect a battery to the speaker wire the speaker moves outward which i assume is normal so i dont kno what else can be causing the speaker to be bottomin out.

note that it is only occuring at high volumes.

any assistance would be greatly appreciated.

Postby **- Rovin's car audio -** » January 9th, 2012, 9:59 pm

how is ur gain set

cud be d sub is damaged or spiders beat out too much - i suspect d answer is in ur post , sub rated 2500wrms & u dropping a 4000+wrms amp on it ...

MONGO · Postby **MONGO** » January 9th, 2012, 10:09 pm

check them spiders the probably beat out and dropped, i have a sub doing the same thing...

agabriel · Postby **agabriel** » January 9th, 2012, 10:20 pm

gains are off using a dqxs so i had them set to 0. and the sub isnt "beat out" because that problem has been happenin since i first put the sub in. so it is not something that now started happening

agabriel · Postby **agabriel** » January 9th, 2012, 10:35 pm

i was told that the problem could be caused by some card in the amp that might be malfunctioning could anyone shed some light on this??

Anthony624 · Postby **Anthony624** » January 10th, 2012, 11:23 am

Was the sub bought used. Push the cone down if its really easy to go down then your spiders are probably bad.

agabriel · Postby **agabriel** » January 10th, 2012, 12:24 pm

the sub was bought brand new. so i dont understand how the spiders could be bad

MONGO · Postby **MONGO** » January 10th, 2012, 1:34 pm

Set the subsonic filter 5Hz below the box tuning, the Low pass Filter to around 100Hz, bass eq to zero..if no difference take the sub out the box and play it, gradually increase volume until it bottoms out and inspect the sub while playing.

agabriel · Postby **agabriel** » January 10th, 2012, 2:51 pm

ok so ^^ was done what exactly am i lookin for??

Postby **- Rovin's car audio -** » January 10th, 2012, 4:18 pm

basically what mongo saying is if ur box was designed to play say around 40hz tuning & not to really play lower than about 5hz less than 40 but if ur playing songs that have notes below 35 or into d 30s & ur SSF is set much lower than 5hz off d box tuning that is a possibility for d problem ur having ...