Video Request: 2 18's in a sealed enclosure

OneBigHoe

CarAudio.com Newbie
Hello, I'm getting back into car audio after a hiatus. I'm looking to do a build in my MK5 Jetta. An idea I'm toying with is 2 18's sealed in the trunk. I should be able to just squeeze in enough space for subs forward. This idea originally started as 2 18" in an IB set up but being a basshead at heart I'm worried the IB set up won't live up to what I want.

I know the simple answer is a set of 12's in 3-4 cu ft between 32-35hz, but I'd like to step outside of the box a little bit. Im just short on room to fit 2 15's and a 8" aero port facing subs forward/port forward, so this is my last ditch effort to make large cone subs work in my application.

Hoping to see some videos of 2 18"s sealed or 2 15"s sealed. Suv, truck, hatch, trunk, I'd like to see them all! Thanks in advance.
 
Hello, I'm getting back into car audio after a hiatus. I'm looking to do a build in my MK5 Jetta. An idea I'm toying with is 2 18's sealed in the trunk. I should be able to just squeeze in enough space for subs forward. This idea originally started as 2 18" in an IB set up but being a basshead at heart I'm worried the IB set up won't live up to what I want.

I know the simple answer is a set of 12's in 3-4 cu ft between 32-35hz, but I'd like to step outside of the box a little bit. Im just short on room to fit 2 15's and a 8" aero port facing subs forward/port forward, so this is my last ditch effort to make large cone subs work in my application.

Hoping to see some videos of 2 18"s sealed or 2 15"s sealed. Suv, truck, hatch, trunk, I'd like to see them all! Thanks in advance.
He pops the trunk towards the end, pretty cool!

 
Last edited:
Ported, sealed, relative to the goal/drivers. Could really do it up and go with 4 18's, ported in an Isobaric load, man oh man!

4 of these Isobaric (compound) loaded, in a 3 cubic foot box...
 
Last edited:
Do you happen to have a video?

I'm thinking 2 DC Level 4 18's on around 3-4k. Either stock soft parts or PSI soft parts
I don't believe anything in the DC lineup is really fit for running sealed alignment.

IF you're just looking to cram as much cone area into as small airspace as possible you can brute force reasonably loud with pretty much anything. Do what you like.
 
Anthony Carrigan Omg GIF by HBO
 
I don't believe anything in the DC lineup is really fit for running sealed alignment.

IF you're just looking to cram as much cone area into as small airspace as possible you can brute force reasonably loud with pretty much anything. Do what you like.
DC does give a a sealed box recommendation for Lvl 4 and down, I haven't modeled it yet however. I'm not necessarily married to DC either. Yes your description does word it best, I am looking to brute force as much cone area as I can without a wall. I'm still experimenting to see if I can stuff 2 15's ported as well.
You should be able to go to You Tube and the like to view quite a few Vids on 18" subs???? Stepping up would be ideal for a single sub game changer??

Sealed seems to be a rarity for what I'm asking, understandably. Not many people play the 18" game when tight on space. I may also play with the idea of a single ported 18" as well.
 
Last edited:
Hello, I'm getting back into car audio after a hiatus. I'm looking to do a build in my MK5 Jetta. An idea I'm toying with is 2 18's sealed in the trunk. I should be able to just squeeze in enough space for subs forward. This idea originally started as 2 18" in an IB set up but being a basshead at heart I'm worried the IB set up won't live up to what I want.

I know the simple answer is a set of 12's in 3-4 cu ft between 32-35hz, but I'd like to step outside of the box a little bit. Im just short on room to fit 2 15's and a 8" aero port facing subs forward/port forward, so this is my last ditch effort to make large cone subs work in my application.

Hoping to see some videos of 2 18"s sealed or 2 15"s sealed. Suv, truck, hatch, trunk, I'd like to see them all! Thanks in advance.

I'm a bass head through and through. I have a MK4 jetta with a single 18 I currently. In the works is a new baffle to run a pair of 18's IB while I sort out finances and can finish the final enclosure for the back seat area.

With the proper drivers, infinite baffle will be plenty of output. If you really enjoy the "peak" around 35hz that alot of ported boxes have, then you may feel like you are missing something. But infinite baffle and sealed are virtually the same type of enclosure. Airspace is the big difference. Not many 18's perform super well in less than 2 cubes, and the ones that do are usually rather pricey.

Matt
 
Activity
No one is currently typing a reply...

About this thread

OneBigHoe

CarAudio.com Newbie
Thread starter
OneBigHoe
Joined
Location
Wisconsin
Start date
Participants
Who Replied
Replies
48
Views
7,510
Last reply date
Last reply from
Doxquzme
IMG_1882.jpeg

slater

    Oct 4, 2025
  • 0
  • 0
Screenshot_20251004_120904_Photo Translator.jpg

1aespinoza

    Oct 4, 2025
  • 0
  • 0

New threads

Top