Enclosure help needed

Ok so Hi all its nice to be a part of these boards. Ive been reading around on here for a while but I never posted.

Ive finally got some money and am looking to start my sub system.

Im going to get a 12 inch alpine type-r.

I have decided to try and make a sonotube enclosure, but I need some advice.

Should I make a sealed enclosure with some polyfill to add some boom to it, a ported enclosure with a small tube port directly across from the driver on the other side, or my favorite a 16-18 inch tube with the driver and port beside each other on the same end. I want to have a nice boomy sound and heard that a sealed enclosure can still be boomy if it has some polyfill in it, not sure if its true. I also know that ported should be the way to go for what I want, but heard that in a tube the port has issues when it is right behind the driver but I dont remember where I read that or if it has any credibility. If its ok then I would prolly go that route due to the easiness of it. I was planning on tuning it around 32 but I am still a noob and downloaded winISD but am not real sure what all the stuff means. So I need help finding out the needed dimensions and things. Any help/advice is greatly appreciated.

BTW I am on a pretty strict budget.

 
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Doctor B0MBay

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