Trying to Tune My Box To 33hz ..... I'm Lost!

[DudeWith4x4]

Fiberglass the spare tire well for more space and mount the amps else-where?

[dereileak]

Fiberglass the spare tire well for more space and mount the amps else-where?

I would, but I need that space, I am thinking of eventually putting an air compress/tank in there for a train horn in the future, and my xp power intellecharger is is probably going to be mounted down there too I really need to figure out what to do, because I need to get this box finished, can I have the port run along the outside of the box? I have no issue doing that, I have plenty of space to build a port that comes around the box, my main thing is figuring out how you calculate ports that make corners, do you figure out ports by volume in the port?

[dereileak]

does the port matter if its in the box? cause I can build it out if it needs to be bigger

[Fish Chris]

I still remember back 25 years ago when I built my first box, and I thought I was going to defy the laws of physics, too LOL

Never happened though. They all sounded like a$$, until I finally got a grasp on port tuning, vs. subs in question, vs. available airspace. After that, I just basically never even tried to build another enclosure unless all my calculations "ahead of time" told me it was going to work. And after that, "they all worked"

Peace,

Fish

[dereileak]

I still remember back 25 years ago when I built my first box, and I thought I was going to defy the laws of physics, too LOL

Never happened though. They all sounded like a$$, until I finally got a grasp on port tuning, vs. subs in question, vs. available airspace. After that, I just basically never even tried to build another enclosure unless all my calculations "ahead of time" told me it was going to work. And after that, "they all worked"

Peace,

Fish

I built the box as large as possible, I have had these subs with 3.3 cubic feet before and I thought they sounded pretty good, they hit the lows like amazinly, but the higher notes not so much, they did have a bit of a weird sound, do you think I should just go sealed, how much spl will I lose ? will my box still hit the lows really well?

[727Designs]

I still remember back 25 years ago when I built my first box, and I thought I was going to defy the laws of physics, too LOL

Never happened though. They all sounded like a$$, until I finally got a grasp on port tuning, vs. subs in question, vs. available airspace. After that, I just basically never even tried to build another enclosure unless all my calculations "ahead of time" told me it was going to work. And after that, "they all worked"

Peace,

Fish

I built the box as large as possible, I have had these subs with 3.3 cubic feet before and I thought they sounded pretty good, they hit the lows like amazinly, but the higher notes not so much, they did have a bit of a weird sound, do you think I should just go sealed, how much spl will I lose ? will my box still hit the lows really well?

You have 3.3 GROSS, you need 3.3 NET (I'd actually like a touch bigger using them, but it's whatever). By the time you get a proper port you'll be looking at less than 3 cubes each.

You'll lose some SPL, but if you pack the shit out of it with polyfill it will still have decent output and play down pretty good.

[dereileak]

I still remember back 25 years ago when I built my first box, and I thought I was going to defy the laws of physics, too LOL

Never happened though. They all sounded like a$, until I finally got a grasp on port tuning, vs. subs in question, vs. available airspace. After that, I just basically never even tried to build another enclosure unless all my calculations "ahead of time" told me it was going to work. And after that, "they all worked"

Peace,

Fish

I built the box as large as possible, I have had these subs with 3.3 cubic feet before and I thought they sounded pretty good, they hit the lows like amazinly, but the higher notes not so much, they did have a bit of a weird sound, do you think I should just go sealed, how much spl will I lose ? will my box still hit the lows really well?

You have 3.3 GROSS, you need 3.3 NET (I'd actually like a touch bigger using them, but it's whatever). By the time you get a proper port you'll be looking at less than 3 cubes each.

You'll lose some SPL, but if you pack the shit out of it with polyfill it will still have decent output and play down pretty good.

can I build the port on the outside of the box? then I wont loose any airspace? I have a bit of room to do that, my question is does it matter where the port comes out and which direction, also what is the different between net and gross?

[CleanSierra]

I still remember back 25 years ago when I built my first box, and I thought I was going to defy the laws of physics, too LOL

Never happened though. They all sounded like a$, until I finally got a grasp on port tuning, vs. subs in question, vs. available airspace. After that, I just basically never even tried to build another enclosure unless all my calculations "ahead of time" told me it was going to work. And after that, "they all worked"

Peace,

Fish

I built the box as large as possible, I have had these subs with 3.3 cubic feet before and I thought they sounded pretty good, they hit the lows like amazinly, but the higher notes not so much, they did have a bit of a weird sound, do you think I should just go sealed, how much spl will I lose ? will my box still hit the lows really well?

You have 3.3 GROSS, you need 3.3 NET (I'd actually like a touch bigger using them, but it's whatever). By the time you get a proper port you'll be looking at less than 3 cubes each.

You'll lose some SPL, but if you pack the shit out of it with polyfill it will still have decent output and play down pretty good.

can I build the port on the outside of the box? then I wont loose any airspace? I have a bit of room to do that, my question is does it matter where the port comes out and which direction, also what is the different between net and gross?

SMH

Net is the volume after displacements, like bracing and the subwoofers. If inverting the subs, you don't need to add that into displacement.

[dereileak]

I still remember back 25 years ago when I built my first box, and I thought I was going to defy the laws of physics, too LOL

Never happened though. They all sounded like a$, until I finally got a grasp on port tuning, vs. subs in question, vs. available airspace. After that, I just basically never even tried to build another enclosure unless all my calculations "ahead of time" told me it was going to work. And after that, "they all worked"

Peace,

Fish

I built the box as large as possible, I have had these subs with 3.3 cubic feet before and I thought they sounded pretty good, they hit the lows like amazinly, but the higher notes not so much, they did have a bit of a weird sound, do you think I should just go sealed, how much spl will I lose ? will my box still hit the lows really well?

You have 3.3 GROSS, you need 3.3 NET (I'd actually like a touch bigger using them, but it's whatever). By the time you get a proper port you'll be looking at less than 3 cubes each.

You'll lose some SPL, but if you pack the shit out of it with polyfill it will still have decent output and play down pretty good.

can I build the port on the outside of the box? then I wont loose any airspace? I have a bit of room to do that, my question is does it matter where the port comes out and which direction, also what is the different between net and gross?

SMH

I looked it up, whatev

[CleanSierra]

You need to take away any bracing, ports, and sub displacements from your GROSS volume number. Net is what you are left with after all dispacements. Basic math/physics terms.

*Edit-I didn't mean to sound like a dick. I was trying to get you straightened out that's all. Sorry for being blunt and I hope you get it figured out. If it were me, I'd just close the box up and make it sealed and see if you like it.