My Subs sound like crap!

[adblink182 10+ year member]

long story short, I was driving around with a box with 3 12"s in it, (not separate chambers, all one big one) and it was good, loud make the trunk rattle

then someone pointed out that odd sound I was hearing on very deep/loud notes was actually one of the subs buzzing.....turns out i was driving around with 1 blow sub.....so basically the whole time i was listening to 2 subs in a sealed box disgned for 3 12s.

I was given a ported box for 2 12s and I swapped them out. Now they sound like SHIT! I followed the instruction for getting the gain on my amp, and with the volume all the way up the rear view mirror HARDLY moves, where before when the box sizes was totally off, it shook

wtf happened? when the volume is at 27/33, the subs dont even sound like they are hitting, like you cant feel them hitting, they are just loud....its weird, you can "feel" them hitting at like 16-17/33 volume, but louder, its fuked....

what happened? LPF wroung? its set to like 80hz

any ideas?

the subs are 12" cerwin vega HED

the amp is a Kenwood D-Class 8101D

the headunit is a Kenwood excelon KDC-X789

Click to read more...

 

[spitfirees20 10+ year member]

What's the ported box tuned to?

 

[flakko 5,000+ posts]

try plugging the port. the box is probably some prefabbed crap tuned to 500hz

 

[Prowler573 5,000+ posts]

Just because the ported enclosure you were given had two cutouts for 12-inch drivers doesn't mean that it is the right enclosure for the two 12-inch drivers you put in it.

Different drivers require different enclosures. The drivers you have may be very unhappy in the enclosure you have placed them in due to it being the wrong airspace.

Not knowing what size enclosure you have and I haven't the foggiest idea of what size box C-V HEDs call for I'm only speculating here ~ but that's my first guess...

 

[adblink182 10+ year member]

ah so you think the box is shit....

it has fairly big ports....3 3inch ports per chamber

 

[Twistid 5,000+ posts]

sounds like a fleamarket box to me

 

[LoudCrownVic 5,000+ posts]

sounds like a fleamarket box to me

Fleamarket boxes rool dood. //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif

I personally advise against ported boxes for newbs...