mikescanlon and phattonydemarco build some boxes 11.3 cubes and 4.5 cubes W/ pics

[Relax 10+ year member]

I don't know whats more retarded- you guys saying the box is too big or the guy for deleting his posts.

You can never build a sealed box too big- the larger it is the more it aproximates the installation on a sub in an infinite baffle- an alignment which is considered by many to be the best for bass in homes (why not cars?).

If you want to impress this forum- call it a wall and port it to 50 hz. then post some spl numbers.

 

[PV Audio 5,000+ posts]

I don't know whats more retarded- you guys saying the box is too big or the guy for deleting his posts.
You can never build a sealed box too big- the larger it is the more it aproximates the installation on a sub in an infinite baffle- an alignment which is considered by many to be the best for bass in homes (why not cars?).

If you want to impress this forum- call it a wall and port it to 50 hz. then post some spl numbers.

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif :laugh: //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif :laugh: After saying that, you really can't comment.

IB speakers have certain parameters PARTICULAR TO THOSE TYPES OF SPEAKERS, not all speakers in general. Most won't even make much bass at all, but those that ARE designed for infinite baffle use, then they work. LOL @ never being too large a box.

 

[Relax 10+ year member]

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif :laugh: //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif :laugh: After saying that, you really can't comment.
IB speakers have certain parameters PARTICULAR TO THOSE TYPES OF SPEAKERS, not all speakers in general. Most won't even make much bass at all, but those that ARE designed for infinite baffle use, then they work. LOL @ never being too large a box.

You are ****ing retarded. You probably have no idea what the size of a box does to a speaker do you? If so- tell me what the difference is in placing a 12" sub in a 1 cu ft box when compared to a 3 cu ft box?

You will prolly say the 3 cu ft box will allow the sub to dig deeper yet suffer a loss in power handling due to a larger air spring behind the cone.

Relize though that a (perfect )12" speaker ( a perfect circle with radius of 6 inches.) with a xmax of 1 inch only changes the volume of a box less then .1 cu ft. You honestly believe the effect of .1 cu ft of volume change on a 1 cu ft box is that different then a 3 cu ft box? Or even a 5 cu ft or 11 cu ft?

If you doubt me throw the numbers into your favorite speaker enclosure design software. Most subs show very little change until you are placing them in hundreds of cubic foot compared to a 2 or 3 cu ft box.

The benefit of a sealed enclosure is removing the rear wave of a subwoofer's output from merging with the front. A secondary and much less impactful benefit is an increase in cone control and lower group delay compared to other enclosures.

And as far as your comment on IB woofers. Yes woofers designed to work in IB installs perform better then other woofers. But that is not to say any subwoofer can be installed IB.

 

[tommyk90 5,000+ posts]

You are ****ing retarded. You probably have no idea what the size of a box does to a speaker do you? If so- tell me what the difference is in placing a 12" sub in a 1 cu ft box when compared to a 3 cu ft box?
You will prolly say the 3 cu ft box will allow the sub to dig deeper yet suffer a loss in power handling due to a larger air spring behind the cone.

Relize though that a (perfect )12" speaker ( a perfect circle with radius of 6 inches.) with a xmax of 1 inch only changes the volume of a box less then .1 cu ft. You honestly believe the effect of .1 cu ft of volume change on a 1 cu ft box is that different then a 3 cu ft box? Or even a 5 cu ft or 11 cu ft?

If you doubt me throw the numbers into your favorite speaker enclosure design software. Most subs show very little change until you are placing them in hundreds of cubic foot compared to a 2 or 3 cu ft box.

The benefit of a sealed enclosure is removing the rear wave of a subwoofer's output from merging with the front. A secondary and much less impactful benefit is an increase in cone control and lower group delay compared to other enclosures.

And as far as your comment on IB woofers. Yes woofers designed to work in IB installs perform better then other woofers. But that is not to say any subwoofer can be installed IB.

You need to follow your screenname.

And BTW, not every 12 is going to displace as little at .1 cubic feet. Look at the RE XXX 12". That thing displaces .24 cubes.

 

[davesexplorer 10+ year member]

//content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif

You are ****ing retarded. You probably have no idea what the size of a box does to a speaker do you? If so- tell me what the difference is in placing a 12" sub in a 1 cu ft box when compared to a 3 cu ft box?
You will prolly say the 3 cu ft box will allow the sub to dig deeper yet suffer a loss in power handling due to a larger air spring behind the cone.

Relize though that a (perfect )12" speaker ( a perfect circle with radius of 6 inches.) with a xmax of 1 inch only changes the volume of a box less then .1 cu ft. You honestly believe the effect of .1 cu ft of volume change on a 1 cu ft box is that different then a 3 cu ft box? Or even a 5 cu ft or 11 cu ft?

If you doubt me throw the numbers into your favorite speaker enclosure design software. Most subs show very little change until you are placing them in hundreds of cubic foot compared to a 2 or 3 cu ft box.

The benefit of a sealed enclosure is removing the rear wave of a subwoofer's output from merging with the front. A secondary and much less impactful benefit is an increase in cone control and lower group delay compared to other enclosures.

And as far as your comment on IB woofers. Yes woofers designed to work in IB installs perform better then other woofers. But that is not to say any subwoofer can be installed IB.

//content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif//content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

So by your logic I could throw a 12" sub in a 1 cubic foot box, then a 18 cubic foot box and not notice a difference.. or it being a very small difference? //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif :laugh: //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif :laugh: //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif :laugh:

 

[Relax 10+ year member]

You need to follow your screenname.
And BTW, not every 12 is going to displace as little at .1 cubic feet. Look at the RE XXX 12". That thing displaces .24 cubes.

I am plenty relaxed- don't worry.

I relize many 12s will displace more then .1 cu ft- thats why I said 1 inch xmax.

 

[PV Audio 5,000+ posts]

You are ****ing retarded. You probably have no idea what the size of a box does to a speaker do you? If so- tell me what the difference is in placing a 12" sub in a 1 cu ft box when compared to a 3 cu ft box?
You will prolly say the 3 cu ft box will allow the sub to dig deeper yet suffer a loss in power handling due to a larger air spring behind the cone.

Relize though that a (perfect )12" speaker ( a perfect circle with radius of 6 inches.) with a xmax of 1 inch only changes the volume of a box less then .1 cu ft. You honestly believe the effect of .1 cu ft of volume change on a 1 cu ft box is that different then a 3 cu ft box? Or even a 5 cu ft or 11 cu ft?

If you doubt me throw the numbers into your favorite speaker enclosure design software. Most subs show very little change until you are placing them in hundreds of cubic foot compared to a 2 or 3 cu ft box.

The benefit of a sealed enclosure is removing the rear wave of a subwoofer's output from merging with the front. A secondary and much less impactful benefit is an increase in cone control and lower group delay compared to other enclosures.

And as far as your comment on IB woofers. Yes woofers designed to work in IB installs perform better then other woofers. But that is not to say any subwoofer can be installed IB.

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif You're worse than I thought. Not only does what you wrote have NOTHING to do with what I said (minus your last and shortest paragraph), if you honestly think that a speaker performs the same in 1 cube as it does 11 cubes, you're worse than I used to be...and that's bad.

 

[ngsm13 5,000+ posts]

What a dummy.

Relax ***.

nG

 

[PV Audio 5,000+ posts]

WTF @ your sloganizer lol.

You better get inside nJizm13

....right.

 

[mikescanlon 10+ year member]

i'm guessing relax does pro audio or home audio, becuase i agree with what he's saying.

there is more out there than cars guys.

and speakers are speakers, watts are watts, and volts are volts.

there is more than 1 way to skin a cat?

 

[PV Audio 5,000+ posts]

....I'm a home audio guy who does car audio because it's more profitable around high schoolers. I can guarantee you that if you put a woofer in .5 cubes versus 2 cubes, youll notice a difference. That's simply ridiculous logic.

 

[mikescanlon 10+ year member]

....I'm a home audio guy who does car audio because it's more profitable around high schoolers. I can guarantee you that if you put a woofer in .5 cubes versus 2 cubes, youll notice a difference. That's simply ridiculous logic.

you're a noob that can use autocad from what i noticed.

 

[ultimate157 5,000+ posts]

I have played around with placing one 12" subwoofer in different sized enclosures.

I currently run my SW8200 in a 1cube sealed box, and it doesn't reproduce 20hz very well at all. I then put it in a 4.5 cube box and was able to flex the roof of my jeep 1" at 20hz.

Still no difference ?

 

[Immacomputer 10+ year member]

I have installed a single polk ex 10" in .44 cubes and in 1 cube and the difference is VERY noticeable. The smaller enclosure peaks much higher and does not dig down into the lows (40hz material). The 1 cube enclosure had a smoother FR that extended near 30hz and was much more laid back in the 60-80hz region. Theoretical graphs are not going to give you these differences that are VERY audible. They're also not going to be able to tell you about transient response.

 

[CBFryman2 5,000+ posts]

You are ****ing retarded. You probably have no idea what the size of a box does to a speaker do you? If so- tell me what the difference is in placing a 12" sub in a 1 cu ft box when compared to a 3 cu ft box?
You will prolly say the 3 cu ft box will allow the sub to dig deeper yet suffer a loss in power handling due to a larger air spring behind the cone.

Relize though that a (perfect )12" speaker ( a perfect circle with radius of 6 inches.) with a xmax of 1 inch only changes the volume of a box less then .1 cu ft. You honestly believe the effect of .1 cu ft of volume change on a 1 cu ft box is that different then a 3 cu ft box? Or even a 5 cu ft or 11 cu ft?

If you doubt me throw the numbers into your favorite speaker enclosure design software. Most subs show very little change until you are placing them in hundreds of cubic foot compared to a 2 or 3 cu ft box.

The benefit of a sealed enclosure is removing the rear wave of a subwoofer's output from merging with the front. A secondary and much less impactful benefit is an increase in cone control and lower group delay compared to other enclosures.

And as far as your comment on IB woofers. Yes woofers designed to work in IB installs perform better then other woofers. But that is not to say any subwoofer can be installed IB.

Yeah...this is a big difference. 10% change vs less than 1% change.

You, and the OP, need to learn a little bit about acoustics and air springs.