I have 4 12" RF Punch Z's in a sealed box. There are 4 different chambers in the box, one for each sub. (Approx 1 1/2 cuft each) I'm wanting to port this box to make it louder with PVC aero ports. My questions are:

1) Should I put a different port for each chamber/sub?

or

Should I take out the walls between each chamber and just port the whole box as one?

2) How big of PVC pipe will I need to effectively port the box? Id like the tuning to be as close to 30-35 hz as possible. Doesn't have to be an EXACT tuning

3) Where should I put the ports?

Here's a couple pictures to help with what the box design is:

Any idea the actual model number for your subwoofers? The two owners manuals I could find on RF's website for the older model Punch Z's like yours showed the specs varied some between the two models, but neither were particularly well suited for ported enclosures.

Also, typically not a good idea to port a sealed enclosure as ported enclosures are typically required to be slightly larger. Just off a glance, after you subtract out the volume of the port your current enclosure would be too small to function ideally as a ported enclosure for the subwoofers.

So overall.....probably not a good plan to do what you wish to do.

Any idea the actual model number for your subwoofers? The two owners manuals I could find on RF's website for the older model Punch Z's like yours showed the specs varied some between the two models, but neither were particularly well suited for ported enclosures.

Also, typically not a good idea to port a sealed enclosure as ported enclosures are typically required to be slightly larger. Just off a glance, after you subtract out the volume of the port your current enclosure would be too small to function ideally as a ported enclosure for the subwoofers.

So overall.....probably not a good plan to do what you wish to do.

Here's the model number - RFZ3412

Not an ideal ported driver.

If you want to go ported, build a new enclosure of appropriate size. Don't port the one you have.....it's too small.

Here's the owner's manual: http://www.rockfordf...ated=1083259380

I'm not wanting this done for me, or I wouldn't have bothered with this question, I would have just went ahead and built another box. There's a guy that is buying these subs from me, but he wants me to port THAT box first. So whether it's ideal or not, I have to do it. So I just need to know the best way to do it

I'm not wanting this done for me, or I wouldn't have bothered with this question, I would have just went ahead and built another box. There's a guy that is buying these subs from me, but he wants me to port THAT box first. So whether it's ideal or not, I have to do it. So I just need to know the best way to do it

Tell him to port it himself, why cant he port it? They will sound terrible in that box ported and then he probably wont want them, I would just try and talk some sense in to him first and tell him you cant always get what you want. But if you insist on porting there are few sites that will help you and have calculators to help with porting an enclosure, search around this forum and online.

I'm not wanting this done for me, or I wouldn't have bothered with this question, I would have just went ahead and built another box. There's a guy that is buying these subs from me, but he wants me to port THAT box first. So whether it's ideal or not, I have to do it. So I just need to know the best way to do it

Tell him it's a stupid idea and a stupid way to go about doing it. Why does he think it's going to be "better" to have the subs in a poorly designed and inadequate ported enclosure?