hey guys,
i got a JBL GT-120 sub and a Kenwood KAC-7201 800 Watt amp and i hooked this stuff up and i wanted heavy bass but its not doin REAL HEAVY just like ok..any ideas?

more info needed
what is your box ?
ported / sealed ?
what is the cft of the box ?

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EVERY FAMILY HAS A RETARD IN IT. IF YOU THINK THAT YOURS DOESNT HAVE ONE, THEN ITS PROBABLY YOU.

so its the box? none of my connections?

Could be many reasons. If you think it hits ok, it could be because the equipment is ok.

Did you connect it properly(bridged)? Gains set correctly? Xovers correct? Sub output on the head unit set ok? Fuses all there and correct value, cause I had a problem melting glass fuses in the power wire, where they did not burn, but passed very little current?

^^^ Box design is a major factor...

well i dont no wat to set the gain to and i dont no wat cross overs are

Then disconnect the system and let a professional install it all.

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I love the smell of fiberglass in the morning!!

'07 Jeep Grand Cherokee Laredo
-1x MTX 9500 12"
-1x Alpine PDX 1.1000
-1x Pioneer DEH-P7800MP
-100 Sq Ft B-Quiet Ultimate

'00 Civic
-2x Alpine Type X 10"
-1x MTX TA81001
-1x Pioneer DEH-P6800MP
-100 Sq Ft B-Quiet Ultimate

read threw your amp owners manuel carefully and take your time trying to understand how to set up the amp. and if cant figure it out still find someone who really knows how or a professional

well **** man i wanna learn this shit i dont like people doin my stuff for me. i just need some help thats all.

well men trll us what we ask like WHAT BOX DO YOU HAVE !?!
if your box has a hole or air leak in it or youe box is to big

__________________
EVERY FAMILY HAS A RETARD IN IT. IF YOU THINK THAT YOURS DOESNT HAVE ONE, THEN ITS PROBABLY YOU.

put pics of your sub install it might help too also if your sub requires a certain cubic ft add .5cubic ft extra i find it makes it louder

also is it only 1 sub???? and what size is it??

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02 GRAND CARAVAN SPORT

SPEAKERS: -6 1/2" component from energy still to come concidering alternatives
-2x Massive audio CW12 in 4.2cf dual chamber square ported at ~35hz

Amps: -DD SS1
-KAC-745

Upgrades: -160 amp alt. maybe
-4 gauge wiring (done)
-0 gauge BIG 3 (done)
-sound deadning the shit out of the van somewhat not done yet
?????????