Large infinite baffle subs ?

[qwiketz 10+ year member]

Hi all. I have the Jl marine 12” Infinite baffle sub. I’d ideally like to go up to a 15 or 18. This is for a boat installation. I’d love to get more output with out the additional power draw of a second sub, so I’m thinking bigger.

move used fi ib3’s in my home theater setup so I’m thinking about one of those or any other good sized subs you can recommend that will be

on the jl instructions, it pretty clearly says 3 cubic ft+ for air space. Typically ib installs have large air volumes and I have a decent amount, but nothing like an attic or home closet.I’ve heard from 4x vas up to 25x vas. Any suggestions on what works and what doesn’t in this type of environment?

sub is in awall of my boats mid cabin and the backside of the woofer is in a compartment under the bow seats which is the left side’s pontoon. I’ll have to take a better look, but it’s a decent sized space.

thoughts on this,?

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[DRBOOM]

Mate, you can use many subwoofers, but take note of the FS and QTS above 4 would be suited. With any install, it is the installation that makes the sound system sound good in the worst environment like a vehicle or a boat. Applying sound deadening to internal cavities and maybe some wadding may also help dampen any resonance and also provide a more smoother roll off and performance of the installed subwoofer. With IB, usually bigger cone area is king!

 

[Popwarhomie 5,000+ posts]

Year old post "mate"

 

[Ridinhi 5,000+ posts]

Year old post "mate"


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Never gets old!

 

[qwiketz 10+ year member]

Never gets old!

Since it’s been a year, time for an update. Got the jl out of the boat and am in the process of making the new baffle. Kind of nervous about hacking up the boat but hopefully the improvement will be noticeable.
Can anyone model these two woofers in a “15” cube sealed box? I think that is roughly about how big the area is for the “enclosure”.