fellahs meh hoss jus did a brand new install , d heart of d system is a premier spl2000 in about a 3cubic enclosure(not sure) and d sub is powered by a boss 3000watt amp (Boss Audio IQ3KD.1)

and i notice he sub suckin inwards and it not soundin as loud as others i have heard, wha yuh think causing that????

check back the wiring on the sub...
is it in the recommended enclosure!!

yea i sure its the wiring !!!!
i accustomed to that kinda sheit

yeah... try switching the positive and negative wires connected to either the amp or the sub..

reverse polarity lol, wiring must of been opposite or some'n

bad box design

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DLS Trinidad and IASCA Caribbean

That's a bit frightening.

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hahaha fuh real eh!
that is disturbing!!!!

if de amp bridged, it Could be that one chanel not workin good ( or not at all....)

i have a feelin is that
friday we go try and sort it out . thanks

try the sub on individual channels on the amp to confirm if the channel has a problem or not

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DLS Trinidad and IASCA Caribbean

isn't the Boss Audio IQ3KD.1 a class D amp? mono output?

that box you have dey ice, is a typcal box for a 12", is like 2.0CF right? and them kickers is 2 or 400rms?

I had a problem like that once, I was told that the amp was underpowering the sub.

correct



lol i not talkin about MY SUBS....read meh post again...i talkin about a spl2000 in a wagon

lol hmm, i know jbl amps play the speakers inwards. 4 real.

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Wayz....

The man wake the dead they!!!!

which jbl amp does that

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that hadda be a weird amp... cuz it not usin d speakr potential

meh padna has a JBL BP1200 an it blew...he repaired it and after that the sub started playing inwards...maybe it was the cheap substitute mosfets he put in...so it's not the jbl amps...

hoss that eh repair.. say wah

as ne jbl dealer, or ne one who knows about their stuff

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No need for sex, the Government f#%ks me over everyday!

i know plenty people using jbl amps (includin my self)
it does move both ways!
i'll sit down and watch it tom

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lol yup, but it pulls the speaker inwards first. SERIOUSLY

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just like dem kicker square subs...

Really old thread, but makes sense to comment here instead of creating a new post.



What exactly is meant by this?
Does it meant the box is too large for the speaker or too small?

I'm enquiring about this particular instance because I recently built 2 boxes for 2 unknown 12" speakers (no markings at all), and they are pulling inward in the box, but play fine when outside of it.

The boxes look oversize for the speakers, but never knew any such effect was possible, so any professional information will be greatly appreciated. thanks

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Forgot to mention, the boxes are: Vented, 2.0 cu ft, 34 Hz

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One possible cause that comes to mind is non-linear vent effects caused by how each end of the vent is loaded (e.g. flared, close to a side panel, etc.). At higher SPL levels, the vent acts almost like a diode - air is pushed out of the box, but not sucked back in at the same rate. The end result is that the net pressure in the box decreases and the speaker's cone is sucked in. Flaring the vent at BOTH ends can help reduce this effect if this is actually the cause (easy to find out - flip the driver around, run it at the volume level, check to see if the cone is still sucked into the box).

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god damn , 2005 revival...i dont even understand what i wrote...lmao so long i out of music