Box Suggestions for Zv4 12" in the Trunk.

[OrionStang]

Im only using Torres at this point to get a general idea, and I can't find a volume/tuning/port area combo that I like. Also, I have zero Sundown sub experience.

Max dimensions are 33Wx14Hx28D. Won't need near all of that, i'd like to keep depth close to 24". Sub will powered by an RF2500-1bdcp.

Sundown suggests 2.50cu ft tuned to 32 with 40in of port area. I'd be happy with tuning up to 34.

Biggest issue I have is port length to achieve low tuning. Not sure how much port area I could sacrifice to shorten the port.

Anyone knowledgeable with this sub? Please assist.

[tdsa23]

You running Sundown now?

[OrionStang]

You running Sundown now?

Not set in stone, but I might pick up this sub.

No clue on how much I can vary from Sundowns suggestions on the stated power.

[RainStryke]

On a work computer at the moment and would love to help, but I do not have sketchup to see the deminsions of the box they made.

Just plug the numbers into this calculator and you will get your answer under Slot Port Length Calculator:

http://www.the12volt.com/caraudio/boxcalcs.asp

[OrionStang]

On a work computer at the moment and would love to help, but I do not have sketchup to see the deminsions of the box they made.

Just plug the numbers into this calculator and you will get your answer under Slot Port Length Calculator:

http://www.the12volt.com/caraudio/boxcalcs.asp

Im looking for real world builds that may vary from what Sundown suggests. Basically, I am trying to avoid a 40" long port.

Thanks though.

[RainStryke]

To achieve a shorter port it would need to be wider for a slotted port. You could also go with a circle port instead, those allow you to extend the port beyond the box to achieve lower frequencies.

[OrionStang]

To achieve a shorter port it would need to be wider for a slotted port. You could also go with a circle port instead, those allow you to extend the port beyond the box to achieve lower frequencies.

I know you're trying to help, but I am aware of all this. Im no NooB.

I am looking for input from people who have personally used the sub. Real world success/failure says much more than a computer program.

[RainStryke]

*EDIT*

Nvm

[Triticum Agricolam]

I did a box for a 10" Z.v4 on the same amp you are using a while back. I used 30 sq in of port for it and I wouldn't have wanted to use any less. For a 12" sub you would need about 48 sq in of port area to have equivalent port velocities. Probably not what you wanted to hear.

The good news is if you use a 48 sq in slot port with three common walls the port only needs to be 35" long according to the port length formula I use (which I think is more accurate than Torres).

[slowfkncar]

Enclosure L-24 W-26 H-14 / port L-34 W-3 1/4 H-12.5

3/4" MDF /double baffle face/threaded rod bracing

I have had very good luck with this enclosure with both the zv3 & zv4. I have tried and own 3 spare enclosures of the same net space but different tuning. The zv4 is the loudest in my trunk on the enclosure i listed above. It loss a tad of output in the 35hz box,the zv3 gained output in the 35hz box. I suggest trying to fool around with tuning in your car and see what you like best. This was in a trunk on a saz3k.