Idea for (2) 18" RE MT's...

[80INCHES 5,000+ posts]

80

 

[80INCHES 5,000+ posts]

I have (2) 18" RE MT's on the way and have allready decided that I'm not going to have any more rear seats in my 2dr blazer //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
I want to create a very effecient box since I'm only going to have 1800rms per sub for right now.

Should I completly remove my rear seats and build a wall or should I just fold the seats down and do a CRX?

Size & port area?

hmm being u asking for an efficient box isuggest 6th order parallel tuned bandpass

have both 18's in shared 10cuft ported rear chamber with 120square inchport tuned to 32hz playing into a shared 6cube ported area with 300 square inch port tuned to 75hz

that should be really nice and u should dohair trix with noooooooooooo problem

80

 

[SHiZNiLTi 10+ year member]

//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Wall

I was thinking about taking the seats out and after looking it over I don't need to remove them right now to still be able to wall it off.

I'm thinking about just building the box shown below and if it sounds and gets loud enough I'll then remove the seats, make a frame and wall it off from the rest of the cargo area.

Net Volume: 16 cuft

Tuning: 33 Hz

Port Height: 6.5"

Port Width: 35.5"

Port Length: 23.25"

Port Area: 230.75 sq.in.

External Dimensions: 37" wide x 29.5" tall x 36.25" deep.

x2..that was kinda dumb..fully loaded btl is louder then a MT..

No, it wasn't dumb, it was a smart decision to do what I did. Anyways I allready answered that a couple posts ago...

 

[path2spl 10+ year member]

take the rear seats out but build a false floor so it hides the batterys. im going to be doing 2 re mt 18s also in a crx box after i get bored of my 15 mts. but im throwing 2500+ to each hehe. my 15s will be in a box built by ryan wallace subs up port to the side 10 cubes

 

[Blove1991 10+ year member]

Be a bit different and try 80's idea

 

[80INCHES 5,000+ posts]

he should trymy idea its a very efficient box he will the lows like no other and he will have very high output

i wont be shocked if it did close to 150 in bass racing

sealed at the dash

80

 

[SHiZNiLTi 10+ year member]

LOL, 80 you allways have some badass ideas. I like the sound of it.

Can you draw up a quick sketch of what it would look like so i can visualize it.

Doesnt have to be exact or anything just a quick, Thanks!

 

[60ndown 10+ year member]

LOL, 80 you allways have some badass ideas. I like the sound of it.
Can you draw up a quick sketch of what it would look like so i can visualize it.

Doesnt have to be exact or anything just a quick, Thanks!

 

[80INCHES 5,000+ posts]

LOL, 80 you allways have some badass ideas. I like the sound of it.
Can you draw up a quick sketch of what it would look like so i can visualize it.

Doesnt have to be exact or anything just a quick, Thanks!

well i dont have sketchup

but being that this will be a wall build

i have a ms paint drawing i wiped up

im at so i had to do wat i gotta do...lol

80

i put the bigger port on driver side

 

[SHiZNiLTi 10+ year member]

Sweet, that would be sick!!!

I'm going to start working on that design in sketchup tonight.

Any more opinions guys?

 

[80INCHES 5,000+ posts]

Sweet, that would be sick!!!
I'm going to start working on that design in sketchup tonight.

Any more opinions guys?

yea all u gotta do is figure out 10cubes tuned to 32hz with 120 square inches of port and the front chamber 6 cubes tuned to 75hz with 300square inches of port

80

 

[SHiZNiLTi 10+ year member]

Since I only have 30" for height I'm not going to be able to have the 18's stacked on top of each other, they will have to be side by side or offset in to fit correctly, but I don't think this will effect anything.

Once I figure out the port length tuning and box dimensions tonight I'll post them up so you all can review them.

Should I make either chamber bigger?

The plan is both 18's in shared 10cuft ported rear chamber with 120square inchport tuned to 32hz playing into a shared 6cube ported area with 300 square inch port tuned to 75hz?

I have alot of depth to work with for more cuft so let me know. Thanks!

 

[inapontiac 10+ year member]

sweet. 80. i also might need some help haha.

 

[80INCHES 5,000+ posts]

Since I only have 30" for height I'm not going to be able to have the 18's stacked on top of each other, they will have to be side by side or offset in to fit correctly, but I don't think this will effect anything.
Once I figure out the port length tuning and box dimensions tonight I'll post them up so you all can review them.

Should I make either chamber bigger?

The plan is both 18's in shared 10cuft ported rear chamber with 120square inchport tuned to 32hz playing into a shared 6cube ported area with 300 square inch port tuned to 75hz?

I have alot of depth to work with for more cuft so let me know. Thanks!

if u want to make it bigger go ahead...hell if u can do 15cubes for rear chamber and 10cubes for the front chamber thats fine..u will just have more low end authority

80

 

[Corey69 10+ year member]

The BTL I was running was a 2 ohm DVC, The MT's are 1 ohm DVC. If I was to get another 2ohm DVC BTL I'd hafta run .5 ohm or 2 ohm. With the MT's I can get a 1ohm load which is perfect for my amp. Plus I picked up (2) freshly reconed MT's for $550 total, which is pretty much the cost of a new Fully Loaded BTL //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

I guess that makes sense then, and if your doing a wall the MTs would do better. Hopefully the tinsel leads can take the power, because mine just blew and lit my spider on fire.