Audioque and RE box calculator QUESTIONS

[Bass911 10+ year member]

I facepalmed and peed my pants i laughed so hard at Bromo and his "NEW IMPROVED BOX MATH" lulz.

What's exactly is wrong about his math?

 

[SicAudio 5,000+ posts]

You might as well finish what you started and visually move it to the middle for me?//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

lol you sure you want that idiot to do it? lol

fas will hook u up dude hes got it in the bag //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Bass911 10+ year member]

what subs you running?

2 Sdc2.515's

 

[SicAudio 5,000+ posts]

What's exactly is wrong about his math?

he is saying the space at the end of the port is not part of the vb of the box and that it is part of the port which on a box that size will throw the tuning way way way off.

 

[NB50 10+ year member]

you just proved to the world that you don't know what you're talking about. so you telling me and this forum that the space behind the port is considered part of the port and should not be taken into account for the box's internal volume?

I facepalmed and peed my pants i laughed so hard at Bromo and his "NEW IMPROVED BOX MATH" lulz.

So when you guys do designs and the port bends around the corners you still add the corners volume into the total box volume. Interesting.

 

[SicAudio 5,000+ posts]

his port doesnt bend idiot you stop calculating port at the end of the port.

 

[SicAudio 5,000+ posts]

the port just happens to be 8.25 from the back wall becuz u have to keep it the same distance from a wall as the width is, as a minimum which happens to be 8.25 even if the port is round it is the same thing a 4" port should be no closer than 4" to any wall of the box or it affects the tuning.

 

[fasfocus00 5,000+ posts]

box: 18Hx49Wx24D

port: 16.5Hx7.5Wx18D

that puts your box at ~8.58 cubes net tuned to ~39hz after all displacements.

 

[Bass911 10+ year member]

box: 18Hx49Wx24Dport: 16.5Hx7.5Wx18D

that puts your box at ~8.58 cubes net tuned to ~39hz after all displacements.

Like this? Do you think it should be tuned a little lower?

 

[NB50 10+ year member]

the port just happens to be 8.25 from the back wall becuz u have to keep it the same distance from a wall as the width is, as a minimum which happens to be 8.25 even if the port is round it is the same thing a 4" port should be no closer than 4" to any wall of the box or it affects the tuning.

That is not the same with this slot port, your using 3 of the boxes walls to make up the port. It carries around the corner in this instance. If it ended greater then 8.25" away from the back wall then you account for the corner in the volume.

 

[fasfocus00 5,000+ posts]

Like this? Do you think it should be tuned a little lower?

no, the dimensions I gave you are pretty much what DJ would recommend for you.

 

[SicAudio 5,000+ posts]

That is not the same with this slot port, your using 3 of the boxes walls to make up the port. It carries around the corner in this instance. If it ended greater then 8.25" away from the back wall then you account for the corner in the volume.

then in that case the " corner " as you call it is still only .114cf less vb the wood is still only .75 thick lol making the "corner" 3/4" lol wow

you really need to read the cookbook just throw out everything you know about boxes and start all over. i plugged the dimensions into 3 dif calculators and bbp6 and fasfocus is dead on the money. you are taking the port wall thing way to literal in this case.

 

[Bass911 10+ year member]

no, the dimensions I gave you are pretty much what DJ would recommend for you.

Are you saying no to my drawing or no to it shouldn't be tuned lower?

 

[mazdakid 5,000+ posts]

I agree with bromo. It doesn't make sense to say the re calculator is off for all subs except for re subs. The numbers you put into that calc have nothing to do with any specs on the subs

 

[mazdakid 5,000+ posts]

You don't get to pick what sub you're using on the re calculator, and all the re subs don't have the same specs so how can you say its wrong for other subs but not re subs?