Punchy base

[kslim]

Hey guys,

Just wondering, I've got a 12 JL w3d2 running on jaycars 4x100.

It sounds ok but I want the base to be more punchy. ATM the base is really deep and drags on a lot. What settings on the amp should I make? Will that solve the problem?

Thanks

Kslim

[Fhrx]

The sound of the bass is most effected by the enclosure the sub is running in.

Could you please tell us a little more about the enclosure?

[kslim]

Hmmz.. I think it sounds like the dogdy box I built then.

Anayways

the measurements are (external measurements) 50cm(length)x 36cm(width) x 36cm (depth). Using 3/4 inch mdf

[Ryan D]

Being a musician, a drummer at that.. If you want punchy bass, then fill your sub enclosure box with a pillow/blanket. its a trick us drummers use to make our bass drums sound more punchy

[kslim]

Yeah I've heard of people doing that but never actually thought of doing it myself.

Are you supposed to glue or staple the filling to the walls of the box or do you just throw it in and leave it floating around?

[sliksilvia]

is the box ported or sealed? nice sub btw

[kslim]

thanks man

The box is sealed

[predator]

Try adjusting the cross over point with your amp.

If it is set too high it will let in a lot of other frequencies which will dull or muddy the response. Thats what i've found anyhow, can make a big difference.

[sliksilvia]

ajdust it to about 75 / 80 or even lower u mayb gettin in a bit to much mid

[Mud]

Check the size of your box is as per the specs that came with the sub.

A sealed enclosure (no port will be best)

Filling with dacron/wool/blanket wont make much differnece to a sub.

[sliksilvia]

these subs are suited to a sealed or ported encloser

check www.jlaudio.com for specs

[Mud]

Yeah, but by design a ported box will be loud and "chuffy", a sealed box will be tight and responsive maybe but 2-3 Db less.

[Nav2k]

sounds like ur crossovers arent set.

punchy bass might mean that u want a more higher frequency bass than lower frequency which tends to make a low noise which drags on a bit.

is ur amp lpf'd ?

[Fhrx]

With the dimensions you gave above I can tell you now your enclosure is about double the size it needs to be. Halve the volume if it's sealed and see what the bass does.

Set the crossover at 100 to start with and set the slope to 24db if you can.

[kslim]

Thanks for your help fhrx. I shall rebuild the box and tell you how it goes.

[kslim]

Nav 2k : sorry but wats lpf'd?

[Nav2k]

its low pass filtered.

[kslim]

yeah it is

[sewid]

my 12" sony in a sony enclosed box sounds quite punchy. If anyone is familiar with Deftones - Digital Bath song, it sounds fricken awesome on this sub, the bass drum is reproduced so well.

That is a really good song to show of the audio with.

[kslim]

Yeah I've rebuilt the box and customized it so it fits into one corner of the boot. Looks pretty mad and now sounds even better.

So i guess my problem was the box being too big. Anyways thanks everyone for all the help!