What does that sound mean?

[shiftless 10+ year member]

johnsonFull pass lets the subwoofer run at all frequencies which isnt wasnt meant to do. Theyre designed to play the "sub" frequencies.

I think that when i ran it at full pass it allowed the power to not be focused on the lower frequencies which made the hits softer cause some of the power was being used to put out the higher frequencies, so it could be just bottoming out. and i can't quite remember exactly what the recommended box size is and i can't find the flippin paper which made me mad, but i know there was a .3 involved so it might have been 1.03 cuft. and if that's the case, and those specs are there for the quality of the speaker, then 1.2 would be a considerable amount of space as opposed to 1.03... so i could have just made the box too big, which isn't a problem. i'm going to go to work and try to get some time to put some peices of plywood in it.

 

[johnson 10+ year member]

besides maybe the brand would you all agree that a big problem could lie in the box design?

or the speaker itself could be having problems. It only takes a few minutes add some more wood in the box so try it...

And you should be using MDF, not plywood.

 

[shiftless 10+ year member]

I know, I know, i'm such a failure...

i used silicone on the inside and spaced my screws about 3 inches from each other... does that count for a good thing?

anyway, i'm not sure exactly how screwing a peice of wood into a box with only a 9 and 5/8 hole as an entrance is going to be quick really but i guess i could like go do it now and see if there's a difference.

what would you recommend in the way of amount. should i make it like 2 pieces that are 12x4 (inches) and then stack them or just one or smaller amounts.

here's the box:

-[]

-[]

is the magnet. the blue lines are the box and the dots are just filler dudes.

________

|........../

|-[]...../

|-[]..../

|____/

the top is 13.1

the bottom is 6

the front is 14

the back is like 14.5 i think

and it's 15 inches wide

the speaker is offset to the bottom even though it's centered in the pic

at 3/4 plywood (i know, i know)

 

[johnson 10+ year member]

L x W x H / 1728 gives you the cubic feet of the blocks of wood

 

[tRiGgEr 5,000+ posts]

Plywood!? Umm build a new box.

Just put some 2x4's in there. It's not rocket science adding wood in the box...

 

[shiftless 10+ year member]

thanx.

that's cool, is that like a 'golden rule' or how did that formula come about?

 

[shiftless 10+ year member]

is plywood bad? i mean i know it's not the best but surely it's not the problem... and if it is, could i just add something that will absorb the sound better on the walls?

 

[tRiGgEr 5,000+ posts]

is that like a 'golden rule' or how did that formula come about?

It's called math. The universal language of the universe...

 

[tRiGgEr 5,000+ posts]

is plywood bad? i mean i know it's not the best but surely it's not the problem... and if it is, could i just add something that will absorb the sound better on the walls?

If the sound is coming from the sub no. It is not the box. But you really should not be using plywood. MDF is the Ideal enclosure material.

 

[shiftless 10+ year member]

ok, well, when i get some 12's i'll be sure to do it the right way... but right now, i'm just going to get this to work. i'll see what i can get and then go from there. could i use like 2 sided tape or 3m velcro to hold it down or should i go ahead and screw it down?

 

[johnson 10+ year member]

thanx.
that's cool, is that like a 'golden rule' or how did that formula come about?

12" x 12" x 12" = 1728 cubic inches

1728 / 1728 = 1 cubic foot

math is awesome

And before anyone gets mixed up, those are internal dimensions.

 

[johnson 10+ year member]

ok, well, when i get some 12's i'll be sure to do it the right way... but right now, i'm just going to get this to work. i'll see what i can get and then go from there. could i use like 2 sided tape or 3m velcro to hold it down or should i go ahead and screw it down?

1. Unscrew subwoofer

2. Add wood

3. Screw back in subwoofer

4. Put subwoofer face up

5. Play music

6. ???

7. Profit?

 

[shiftless 10+ year member]

ok, ok, i get it you take the demensions and divide by a cubic foot... sorry i didn't recognize the number instantly... anyway, thanks for your help guys i'll try some wood and get back to ya...

 

[tRiGgEr 5,000+ posts]

could i use like 2 sided tape or 3m velcro to hold it down or should i go ahead and screw it down?

Sheesh man. Don't screw it in. Just throw it in there and test the box after that. If it works then screw it down. If not take it out.

 

[shiftless 10+ year member]

1. Unscrew subwoofer2. Add wood

3. Screw back in subwoofer

4. Put subwoofer face up

5. Play music

6. ???

7. Profit?

ok, thanx. that's what i needed to know is whether it needed to be secure or not. thanks again.

right... thanx trigger, that makes sense, don't screw it in if it's not going to work. sorry i'm alil out of it this morning...

thanks again